Results 341 to 350 of about 231,050 (376)

S-scheme heterojunction in photocatalytic hydrogen production

Journal of Materials Science & Technology, 2023
Teng Li, N. Tsubaki, Zhiliang Jin
semanticscholar   +1 more source

Elementary theory of heterojunctions

Journal of Vacuum Science and Technology, 1977
An LCAO theory of heterojunction band-edge discontinuities is formulated and tested for approximate self-consistency. It leads to a table of valence-band maxima for all tetrahedral semiconductors; discontinuities can be obtained from the table directly by subtraction.
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Microscopic theory of heterojunctions

Vacuum, 1990
The most important signature of a heterojunction is the valence band offset ΔE v . We show that, owing to the smallness of the charge transfer at the interface in most structures of practical interest, the physical origin and magnitude of ΔE v can be appreciated in terms of bulk properties of the constituents.
K.B. Wong, M Jaros, P.J. Hagon
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Heterojunctions in integrated optics

Journal of Vacuum Science and Technology, 1977
In this review article we discuss the role of heterostructures in integrated optics. We consider, in sequence, the role of heterostructure waveguides, lasers, light couplers, modulators, and detectors, and describe the progress made to date in integrating these into a thin-film monolithic optical circuit.
D. R. Scifres, W. Streifer, R. D. Burnham   +2 more
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Heterojunctions in Composite Photocatalysts

2015
Combining different light-absorbing materials for the formation of semiconductor heterojunctions is a very effective strategy for preparing highly active photocatalyst and photoelectrochemical systems. Moreover, the combination of solid state semiconductors with polymers or molecular absorbers expands the possible combinations of materials to alter ...
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Recombination at Heterojunction Interfaces

MRS Proceedings, 1993
ABSTRACTGeneration and recombination mechanisms at heterojunction interfaces are quantitatively discussed for lattice-matched (AlGaAs/GaAs) and lattice-mismatched (InGaAs/InP) systems. The effect of increased interface recombination on photon recycling and carrier diffusion through the interface region are estimated through a calculation based on the ...
Nancy M. Haegel, M. Müllenborn
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16.67% Rigid and 14.06% Flexible Organic Solar Cells Enabled by Ternary Heterojunction Strategy

Advances in Materials, 2019
Ternary heterojunction strategies appear to be an efficient approach to improve the efficiency of organic solar cells (OSCs) through harvesting more sunlight.
Ting-Ting Yan, Wei Song, Jiaming Huang, Ruixiang Peng, Like Huang, Z. Ge   +5 more
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Z-Scheme 2D/2D Heterojunction of Black Phosphorus/Monolayer Bi2 WO6 Nanosheets with Enhanced Photocatalytic Activities.

Angewandte Chemie, 2019
Black phosphorus (BP), a star-shaped two-dimensional material, has attracted considerable attention owing to its unique chemical and physical properties. BP shows great potential in photocatalysis area because of its excellent optical properties; however,
Jundie Hu, Dongyun Chen, Zhao Mo, Najun Li, Qingfeng Xu, Hua Li, Jinghui He, Hui Xu, Jian‐mei Lu   +8 more
semanticscholar   +1 more source

Polar heterojunction interfaces

Physical Review B, 1978
A study of heterojunction interface geometry based on our measured differences in $3d$ core-state binding energies for germanium and gallium at Ge-GaAs heterojunctions of different crystallographic orientations is reported. For the interfaces which have been studied, i.e., (110), (100) Ga, (100) As, (111) Ga, and ($\overline{1}\overline{1}\overline{1}$)
E. A. Kraut, J. R. Waldrop, W. A. Harrison, R. W. Grant   +3 more
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Reticulated Heterojunctions for Photovoltaic Devices

Angewandte Chemie International Edition, 2010
An organic semiconductor device is formed by the self-assembly on a transparent electrode surface. The donor (see picture; dibenzotetrathienocoronene, yellow layer) deposits as supramolecular cables, and the acceptor (C60, orange) subsequently infiltrates this network. This network provides a donor–acceptor interface that is interwoven at the nanoscale.
Zhang Jia, Wesley Sattler, Ioannis Kymissis, Michael L. Steigerwald, Marshall Cox, Matteo Palma, Theanne Schiros, Chien-Yang Chiu, Alon A. Gorodetsky, Colin Nuckolls   +9 more
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