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Journal articles on the topic 'Chemistry and Chemical Biology. Chalcogenides. Semiconductors'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Boudjouk, Philip, Dean J. Seidler, Steven R. Bahr, and Gregory J. McCarthy. "Bis(triphenyltin) Chalcogenides as Convenient Precursors to Phase-Pure Binary Semiconductors." Chemistry of Materials 6, no. 11 (1994): 2108–12. http://dx.doi.org/10.1021/cm00047a034.

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Hodges, James M., Yi Xia, Christos D. Malliakas, Grant C. B. Alexander, Maria K. Y. Chan, and Mercouri G. Kanatzidis. "Two-Dimensional CsAg5Te3–xSx Semiconductors: Multi-anion Chalcogenides with Dynamic Disorder and Ultralow Thermal Conductivity." Chemistry of Materials 30, no. 20 (2018): 7245–54. http://dx.doi.org/10.1021/acs.chemmater.8b03306.

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Rao, C. N. R., Ved Varun Agrawal, Kanishka Biswas, et al. "Soft chemical approaches to inorganic nanostructures." Pure and Applied Chemistry 78, no. 9 (2006): 1619–50. http://dx.doi.org/10.1351/pac200678091619.

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Chemical approaches have emerged as the preferred means to synthesize nanostructures of various inorganic materials due to superior control over size, shape, and surface functionality. This article provides an overview of the contributions made in the authors' laboratory toward the synthesis of nanocrystals, nanowires, nanotubes, nanowalls, and other nanostructures of several inorganic materials. Thus, thiolized monodisperse metal nanocrystals have been obtained by a ligand exchange process and the stability of their 2D assemblies studied. Nanocrystals of pure CoO and ReO3 have been synthesize

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Garcia-Peiro, Jose I., Javier Bonet-Aleta, Carlos J. Bueno-Alejo, and Jose L. Hueso. "Recent Advances in the Design and Photocatalytic Enhanced Performance of Gold Plasmonic Nanostructures Decorated with Non-Titania Based Semiconductor Hetero-Nanoarchitectures." Catalysts 10, no. 12 (2020): 1459. http://dx.doi.org/10.3390/catal10121459.

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Plasmonic photocatalysts combining metallic nanoparticles and semiconductors have been aimed as versatile alternatives to drive light-assisted catalytic chemical reactions beyond the ultraviolet (UV) regions, and overcome one of the major drawbacks of the most exploited photocatalysts (TiO2 or ZnO). The strong size and morphology dependence of metallic nanostructures to tune their visible to near-infrared (vis-NIR) light harvesting capabilities has been combined with the design of a wide variety of architectures for the semiconductor supports to promote the selective activity of specific cryst

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Kim, Ilhwan, Donghwa Lee, and Kwang Jo Lee. "Investigation of Mid-Infrared Broadband Second-Harmonic Generation in Non-Oxide Nonlinear Optic Crystals." Crystals 11, no. 8 (2021): 921. http://dx.doi.org/10.3390/cryst11080921.

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The mid-infrared (mid-IR) continuum generation based on broadband second harmonic generation (SHG) (or difference frequency generation) is of great interest in a wide range of applications such as free space communications, environmental monitoring, thermal imaging, high-sensitivity metrology, gas sensing, and molecular fingerprint spectroscopy. The second-order nonlinear optic (NLO) crystals have been spotlighted as a material platform for converting the wavelengths of existing lasers into the mid-IR spectral region or for realizing tunable lasers. In particular, the spectral coverage could b

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Sosorev, Andrey, Dmitry Dominskiy, Ivan Chernyshov, and Roman Efremov. "Tuning of Molecular Electrostatic Potential Enables Efficient Charge Transport in Crystalline Azaacenes: A Computational Study." International Journal of Molecular Sciences 21, no. 16 (2020): 5654. http://dx.doi.org/10.3390/ijms21165654.

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The chemical versatility of organic semiconductors provides nearly unlimited opportunities for tuning their electronic properties. However, despite decades of research, the relationship between molecular structure, molecular packing and charge mobility in these materials remains poorly understood. This reduces the search for high-mobility organic semiconductors to the inefficient trial-and-error approach. For clarifying the abovementioned relationship, investigations of the effect of small changes in the chemical structure on organic semiconductor properties are particularly important. In this

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Ryzhkov, Nikolay V., Konstantin G. Nikolaev, Artemii S. Ivanov, and Ekaterina V. Skorb. "Infochemistry and the Future of Chemical Information Processing." Annual Review of Chemical and Biomolecular Engineering 12, no. 1 (2021): 63–95. http://dx.doi.org/10.1146/annurev-chembioeng-122120-023514.

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Nowadays, information processing is based on semiconductor (e.g., silicon) devices. Unfortunately, the performance of such devices has natural limitations owing to the physics of semiconductors. Therefore, the problem of finding new strategies for storing and processing an ever-increasing amount of diverse data is very urgent. To solve this problem, scientists have found inspiration in nature, because living organisms have developed uniquely productive and efficient mechanisms for processing and storing information. We address several biological aspects of information and artificial models mim

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Zhang, Ruifang, Fei Yan, and Yu Chen. "Exogenous Physical Irradiation on Titania Semiconductors: Materials Chemistry and Tumor-Specific Nanomedicine." Advanced Science 5, no. 12 (2018): 1801175. http://dx.doi.org/10.1002/advs.201801175.

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DELGADO, Gerzon E., Pilar DELGADO-NIÑO, and Eugenio QUINTERO. "THE QUATERNARY CHALCOGENIDE COMPOUND Ag2FeGeSe4: A REVISION OF THEIR CRYSTAL STRUCTURE AND MAGNETIC PROPERTIES." Periódico Tchê Química 18, no. 38 (2021): 85–99. http://dx.doi.org/10.52571/ptq.v18.n38.2021.07_delgado_pgs_85_99.pdf.

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Background: Quaternary compounds bellowing to the I2-II-IV-VI4 system are of considerable technological interest due to their possible use in the preparation of solar cell and thermoelectric materials devices. In recent years, considerable attention has been focused on the detailed study of quaternary chalcogenide compounds related to the chalcopyrite compounds, particularly AgInSe2, which has emerged as a leading material for the preparation of photovoltaic devices due to their potential applications in solar cell technology. Aims: This work focuses on synthesis, chemical analysis, thermal st

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Semenov, Victor N., Aleksandr V. Naumov, Tatyana V. Samofalova та Nadezhda M. Ovechkina. "Осаждение слоев сульфидов кадмия и свинца из тиосульфатно-тиомочевинных комплексов и исследование их свойств". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 21, № 2 (2019): 240–48. http://dx.doi.org/10.17308/kcmf.2019.21/762.

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Представлены результаты исследования пленок сульфидов кадмия и свинца, осажденных методом пиролиза аэрозоля из водных растворов тиомочевинно-тиосульфатных координационных соединений при температуре 400 °С. Исследование ТТКС показало, что в водных растворах, содержащих нитрат кадмия, тиосульфат натрия и тиомочевину с разными молярными соотношениями компонентов, образуются координационные соединения [Cd(SCN2H4)2(bi-S2O3)], а в соответ ствующих по составу растворах нитрата свинца формируются комплексы [Pb(SCN2H4)(bi-S2O3)(H2O)]. Методом инфракрасной спектроскопии установлено, что при образовании

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Lenshin, Alexander S., Anatoly N. Lukin, Yaroslav A. Peshkov та ін. "Features of the two-stage formation of macroporous and mesoporous silicon structuresя". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 23, № 1 (2021): 41–48. http://dx.doi.org/10.17308/kcmf.2021.23/3300.

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The aim of this work was the formation of multilayer structures of macroporous silicon and the study of their structural, morphological, and optical properties in comparison with the properties of multilayer structures of mesoporous silicon. The paper presents the results of the development of techniques for the formation of multilayer structures of porous silicon por-Si by stepwise change in the current with two-stage modes of electrochemical etching.The data on the morphology, composition, and porosity of macroporous and mesoporous silicon samples were obtained using scanning electron micros

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12

Imamaliyeva, Samira Zakir. "New Thallium Tellurides with Rare Earth Elements." Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 22, no. 4 (2020): 460–65. http://dx.doi.org/10.17308/kcmf.2020.22/3117.

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Compounds of the Tl4LnTe3 (Ln-Nd, Sm, Tb, Er, Tm) composition were synthesized by the direct interaction of stoichiometric amounts of thallium telluride Tl2Te elementary rare earth elements (REE) and tellurium in evacuated (10-2 Pa) quartz ampoules. The samples obtained were identified by differential thermal and X-ray phase analyses. Based on the data from the heating thermograms, it was shown that these compounds melt with decomposition by peritectic reactions. Analysis of powder diffraction patterns showed that they were completely indexed in a tetragonal lattice of the Tl5Te3 type (space g

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13

Aliev, Ziya S. "THE AV–BVI–I TERNARY SYSTEMS: A BRIEF REVIEW ON THE PHASE EQUILIBRIA REVIEW." Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 21, no. 3 (2019): 338–49. http://dx.doi.org/10.17308/kcmf.2019.21/1149.

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This paper presents a brief review on the ternary phase equilibria in the ternary AV–BVI–I systems (AV = Sb, Bi; BVI = S, Se, Te). These systems includes the series of ternary compounds those are very attractive source materials for photo-, thermos- and ferroelectric energy transformation along the recently discovered semiconductors that exhibit Rashba-type spin splitting in their surface states. In the Rashba semiconductors, a unique toroidal 3D Fermi surface appears on the crystal surface, which leads to unusual properties that make it possible to realize unique electronic devices based on t

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14

Kostryukov, Victor F., Irina Y. Mittova, Boris V. Sladkopevtsev, Anna S. Parshina та Dar’ya S. Balasheva. "Роль BiPO4, вводимого через газовую фазу, в процессе создания тонких пленок на поверхности InP". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 21, № 2 (2019): 215–24. http://dx.doi.org/10.17308/kcmf.2019.21/759.

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Исследованием термооксидирования фосфида индия под воздействием фосфата висмута, вводимого через газовую фазу, установлено ускоряющее воздействие фосфата висмута на процесс формирования пленок. Величина ускорения составляет от 1.5 до 2 раз, и максимальный прирост пленки достигается в первые 10 мин оксидирования. Определяющим процессом является образование фосфата индия за счет вторичного взаимодействия оксидных форм компонентов подложки, лимитируемое диффузией оксидов в твердой фазе. Методами инфракрасной спектроскопии, локального рентгеноспектрального микроанализа и рентгенофазового анализа у

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15

Yun, Hyeong Jin, Jaehoon Lim, Jeongkyun Roh, Darren Chi Jin Neo, Matt Law, and Victor I. Klimov. "Solution-processable integrated CMOS circuits based on colloidal CuInSe2 quantum dots." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-18932-5.

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Abstract The emerging technology of colloidal quantum dot electronics provides an opportunity for combining the advantages of well-understood inorganic semiconductors with the chemical processability of molecular systems. So far, most research on quantum dot electronic devices has focused on materials based on Pb- and Cd chalcogenides. In addition to environmental concerns associated with the presence of toxic metals, these quantum dots are not well suited for applications in CMOS circuits due to difficulties in integrating complementary n- and p-channel transistors in a common quantum dot act

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16

Wu, Liang, Qian Wang, Tao-Tao Zhuang, et al. "Single crystalline quaternary sulfide nanobelts for efficient solar-to-hydrogen conversion." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-18679-z.

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Abstract Although solar-driven water splitting on semiconductor photocatalysts is an attractive route for hydrogen generation, there is a lack of excellent photocatalysts with high visible light activity. Due to their tunable bandgaps suitable for superior visible-light absorption, copper-based quaternary sulfides have been the important candidates. Here, we first assessed the preferred facet of wurtzite Cu-Zn-In-S for photocatalytic hydrogen evolution reaction using the relevant Gibbs free energies determined by first principle calculation. We then developed a colloidal method to synthesize s

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17

Ci, Penghong, Xuezeng Tian, Jun Kang, et al. "Chemical trends of deep levels in van der Waals semiconductors." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-19247-1.

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AbstractProperties of semiconductors are largely defined by crystal imperfections including native defects. Van der Waals (vdW) semiconductors, a newly emerged class of materials, are no exception: defects exist even in the purest materials and strongly affect their electrical, optical, magnetic, catalytic and sensing properties. However, unlike conventional semiconductors where energy levels of defects are well documented, they are experimentally unknown in even the best studied vdW semiconductors, impeding the understanding and utilization of these materials. Here, we directly evaluate deep

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18

Padmajan Sasikala, Suchithra, Yashpal Singh, Li Bing, et al. "Longitudinal unzipping of 2D transition metal dichalcogenides." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-18810-0.

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Abstract Unzipping of the basal plane offers a valuable pathway to uniquely control the material chemistry of 2D structures. Nonetheless, reliable unzipping has been reported only for graphene and phosphorene thus far. The single elemental nature of those materials allows a straightforward understanding of the chemical reaction and property modulation involved with such geometric transformations. Here we report spontaneous linear ordered unzipping of bi-elemental 2D MX2 transition metal chalcogenides as a general route to synthesize 1D nanoribbon structures. The strained metallic phase (1T′) o

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19

Kunkel, Christian, Johannes T. Margraf, Ke Chen, Harald Oberhofer, and Karsten Reuter. "Active discovery of organic semiconductors." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-22611-4.

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AbstractThe versatility of organic molecules generates a rich design space for organic semiconductors (OSCs) considered for electronics applications. Offering unparalleled promise for materials discovery, the vastness of this design space also dictates efficient search strategies. Here, we present an active machine learning (AML) approach that explores an unlimited search space through consecutive application of molecular morphing operations. Evaluating the suitability of OSC candidates on the basis of charge injection and mobility descriptors, the approach successively queries predictive-qual

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Ci, Penghong, Xuezeng Tian, Jun Kang, et al. "Author Correction: Chemical trends of deep levels in van der Waals semiconductors." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-20151-x.

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21

Leube, Bernhard T., Clara Robert, Dominique Foix, et al. "Activation of anionic redox in d0 transition metal chalcogenides by anion doping." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-25760-8.

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AbstractExpanding the chemical space for designing novel anionic redox materials from oxides to sulfides has enabled to better apprehend fundamental aspects dealing with cationic-anionic relative band positioning. Pursuing with chalcogenides, but deviating from cationic substitution, we here present another twist to our band positioning strategy that relies on mixed ligands with the synthesis of the Li2TiS3-xSex solid solution series. Through the series the electrochemical activity displays a bell shape variation that peaks at 260 mAh/g for the composition x = 0.6 with barely no capacity for t

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22

Zhang, Fengjiao, Vincent Lemaur, Wookjin Choi, et al. "Repurposing DNA-binding agents as H-bonded organic semiconductors." Nature Communications 10, no. 1 (2019). http://dx.doi.org/10.1038/s41467-019-12248-9.

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Abstract Organic semiconductors are usually polycyclic aromatic hydrocarbons and their analogs containing heteroatom substitution. Bioinspired materials chemistry of organic electronics promises new charge transport mechanism and specific molecular recognition with biomolecules. We discover organic semiconductors from deoxyribonucleic acid topoisomerase inhibitors, featuring conjugated backbone decorated with hydrogen-bonding moieties distinct from common organic semiconductors. Using ellipticine as a model compound, we find that hydrogen bonds not only guide polymorph assembly, but are also c

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23

Tang, Jiaqi, Xiang Wang, Jiaxu Zhang, et al. "A chalcogenide-cluster-based semiconducting nanotube array with oriented photoconductive behavior." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-24510-0.

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AbstractThe interesting physical and chemical properties of carbon nanotubes (CNTs) have prompted the search for diverse inorganic nanotubes with different compositions to expand the number of available nanotechnology applications. Among these materials, crystalline inorganic nanotubes with well-defined structures and uniform sizes are suitable for understanding structure–activity relationships. However, their preparation comes with large synthetic challenges owing to their inherent complexity. Herein, we report the example of a crystalline nanotube array based on a supertetrahedral chalcogeni

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Koh, Qi-Mian, Cindy Guanyu Tang, Mervin Chun-Yi Ang, et al. "Overcoming the water oxidative limit for ultra-high-workfunction hole-doped polymers." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-23347-x.

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AbstractIt is widely thought that the water-oxidation reaction limits the maximum work function to about 5.25 eV for hole-doped semiconductors exposed to the ambient, constrained by the oxidation potential of air-saturated water. Here, we show that polymer organic semiconductors, when hole-doped, can show work functions up to 5.9 eV, and yet remain stable in the ambient. We further show that de-doping of the polymer is not determined by the oxidation of bulk water, as previously thought, due to its general absence, but by the counter-balancing anion and its ubiquitously hydrated complexes. The

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Firdaus, Yuliar, Vincent M. Le Corre, Safakath Karuthedath, et al. "Long-range exciton diffusion in molecular non-fullerene acceptors." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-19029-9.

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Abstract The short exciton diffusion length associated with most classical organic semiconductors used in organic photovoltaics (5-20 nm) imposes severe limits on the maximum size of the donor and acceptor domains within the photoactive layer of the cell. Identifying materials that are able to transport excitons over longer distances can help advancing our understanding and lead to solar cells with higher efficiency. Here, we measure the exciton diffusion length in a wide range of nonfullerene acceptor molecules using two different experimental techniques based on photocurrent and ultrafast sp

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Kloß, Simon D., Arthur Haffner, Pascal Manuel, Masato Goto, Yuichi Shimakawa, and J. Paul Attfield. "Preparation of iron(IV) nitridoferrate Ca4FeN4 through azide-mediated oxidation under high-pressure conditions." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-020-20881-y.

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AbstractTransition metal nitrides are an important class of materials with applications as abrasives, semiconductors, superconductors, Li-ion conductors, and thermoelectrics. However, high oxidation states are difficult to attain as the oxidative potential of dinitrogen is limited by its high thermodynamic stability and chemical inertness. Here we present a versatile synthesis route using azide-mediated oxidation under pressure that is used to prepare the highly oxidised ternary nitride Ca4FeN4 containing Fe4+ ions. This nitridometallate features trigonal-planar [FeN3]5− anions with low-spin F

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Krieg, Linus, Florian Meierhofer, Sascha Gorny, et al. "Toward three-dimensional hybrid inorganic/organic optoelectronics based on GaN/oCVD-PEDOT structures." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-18914-7.

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Abstract The combination of inorganic semiconductors with organic thin films promises new strategies for the realization of complex hybrid optoelectronic devices. Oxidative chemical vapor deposition (oCVD) of conductive polymers offers a flexible and scalable path towards high-quality three-dimensional inorganic/organic optoelectronic structures. Here, hole-conductive poly(3,4-ethylenedioxythiophene) (PEDOT) grown by oxidative chemical vapor deposition is used to fabricate transparent and conformal wrap-around p-type contacts on three-dimensional microLEDs with large aspect ratios, a yet unsol

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Gierster, L., S. Vempati, and J. Stähler. "Ultrafast generation and decay of a surface metal." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-21203-6.

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AbstractBand bending at semiconductor surfaces induced by chemical doping or electric fields can create metallic surfaces with properties not found in the bulk, such as high electron mobility, magnetism or superconductivity. Optical generation of such metallic surfaces on ultrafast timescales would be appealing for high-speed electronics. Here, we demonstrate the ultrafast generation of a metal at the (10-10) surface of ZnO upon photoexcitation. Compared to hitherto known ultrafast photoinduced semiconductor-to-metal transitions that occur in the bulk of inorganic semiconductors, the metalliza

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Pace, Giuseppina, Ilaria Bargigia, Yong-Young Noh, Carlos Silva, and Mario Caironi. "Intrinsically distinct hole and electron transport in conjugated polymers controlled by intra and intermolecular interactions." Nature Communications 10, no. 1 (2019). http://dx.doi.org/10.1038/s41467-019-13155-9.

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AbstractIt is still a matter of controversy whether the relative difference in hole and electron transport in solution-processed organic semiconductors is either due to intrinsic properties linked to chemical and solid-state structure or to extrinsic factors, as device architecture. We here isolate the intrinsic factors affecting either electron or hole transport within the same film microstructure of a model copolymer semiconductor. Relatively, holes predominantly bleach inter-chain interactions with H-type electronic coupling character, while electrons’ relaxation more strongly involves intr

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Qin, Ying, Hui Chen, Jia Yao, et al. "Silicon and oxygen synergistic effects for the discovery of new high-performance nonfullerene acceptors." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-19605-z.

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AbstractIn organic electronics, an aromatic fused ring is a basic unit that provides π-electrons to construct semiconductors and governs the device performance. The main challenge in developing new π-skeletons for tuning the material properties is the limitation of the available chemical approach. Herein, we successfully synthesize two pentacyclic siloxy-bridged π-conjugated isomers to investigate the synergistic effects of Si and O atoms on the geometric and electronic influence of π-units in organic electronics. Notably, the synthesis routes for both isomers possess several advantages over t

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Levchenko, Iryna, Vasyl Tomashyk, Galyna Malanych, Iryna Stratiychuk, and Andrii Korchovyi. "Improvement the InAs, InSb, GaAs and GaSb surface state by nanoscale wet etching." Applied Nanoscience, April 1, 2021. http://dx.doi.org/10.1007/s13204-021-01784-w.

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AbstractVarious experimental approaches of the wet nanoscale treatment have been proposed to account for features of the InAs, InSb and GaAs, GaSb semiconductor dissolution process in the (NH4)2Cr2O7–HBr–EG etching solution. Etching kinetics data showed that a crystal dissolution has diffusion-determined nature. The lowering of the solvent concentration from 80 to 0 vol.% in the solution was accompanied by a significant increase in the semiconductor etching speed. Depending on the solution composition, we have studied two types of crystal surface morphology, polished and passivated by the film

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Zhu, Lin, Hui Cao, Chen Xue, et al. "Unveiling the additive-assisted oriented growth of perovskite crystallite for high performance light-emitting diodes." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-25407-8.

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AbstractSolution-processed metal halide perovskites have been recognized as one of the most promising semiconductors, with applications in light-emitting diodes (LEDs), solar cells and lasers. Various additives have been widely used in perovskite precursor solutions, aiming to improve the formed perovskite film quality through passivating defects and controlling the crystallinity. The additive’s role of defect passivation has been intensively investigated, while a deep understanding of how additives influence the crystallization process of perovskites is lacking. Here, we reveal a general addi

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Wang, Binghao, Wei Huang, Sunghoon Lee, et al. "Foundry-compatible high-resolution patterning of vertically phase-separated semiconducting films for ultraflexible organic electronics." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-25059-8.

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AbstractSolution processability of polymer semiconductors becomes an unfavorable factor during the fabrication of pixelated films since the underlying layer is vulnerable to subsequent solvent exposure. A foundry-compatible patterning process must meet requirements including high-throughput and high-resolution patternability, broad generality, ambient processability, environmentally benign solvents, and, minimal device performance degradation. However, known methodologies can only meet very few of these requirements. Here, a facile photolithographic approach is demonstrated for foundry-compati

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