Optical orientation and alignment of excitons in direct and indirect band gap (In,Al)As/AlAs quantum dots with type-I band alignment [PDF]
, 2019 The spin structure and spin dynamics of excitons in an ensemble of (In,Al)As/AlAs quantum dots (QDs) with type-I band alignment, containing both direct and indirect band gap dots, are studied.
Bayer, M. +6 more
core +4 more sources
Band alignment of β-(AlxGa1−x)2O3 alloys via atomic solid-state energy scale approach
AIP Advances, 2020 We presented a simple estimation method for band alignment of semiconductor alloys based on the atomic solid-state energy (SSE) scale. Our method has the advantage that natural band alignment can be determined using the SSE and energy gap of materials ...
Yuichi Ota
doaj +1 more source
Tunable Band Alignment in the Arsenene/WS2 Heterostructure by Applying Electric Field and Strain
Crystals, 2022 Arsenene has received considerable attention because of its unique optoelectronic and nanoelectronic properties. Nevertheless, the research on van der Waals (vdW) heterojunctions based on arsenene has just begun, which hinders the application of arsenene
Fang Zhang +3 more
doaj +1 more source
Theoretical band alignment in an intermediate band chalcopyrite based material [PDF]
Applied Surface Science, 2017 Band alignment is key to enhance the performance of heterojunction for chalcopyrite thin film solar cells. In this paper we report ab initio calculations of the electronic structures of CuGaS2:Cr with various Cr compositions, CuAlSe2 and ZnSe and the band alignment between their interfaces.
Castellanos Águila, J.E. +4 more
openaire +2 more sources
New Journal of Physics, 2022 Zero-dimensional (0D)–one-dimensional (1D) mixed-dimensional van der Waals (MvdW) heterostructures have shown great potential in electronic/optoelectronic applications.
Biao Cai +3 more
doaj +1 more source
Calculation of Band Offsets of Mg(OH)2-Based Heterostructures
Electronic Materials, 2021 The band alignment of Mg(OH)2-based heterostructures is investigated based on first-principles calculation. (111)-MgO/(0001)-Mg(OH)2 and (0001)-wurtzite ZnO/(0001)-Mg(OH)2 heterostructures are considered. The O 2s level energy is obtained for each O atom
Masaya Ichimura
doaj +1 more source
Band alignment and scattering considerations for enhancing the thermoelectric power factor of complex materials: The case of Co-based half-Heuslers [PDF]
, 2019 Half-Heuslers, an emerging thermoelectric material group, has complex bandstructures with multiple bands that can be aligned through band engineering approaches, giving us an opportunity to improve their power factor.
Kumarasinghe, Chathurangi +1 more
core +2 more sources
Advances in Condensed Matter Physics, 2021 The electronic structure of GaSe/silicane (GaSe/SiH) van der Waals (vdW) heterostructure in response to a vertical electric field and strain was studied via first-principle calculations.
Gang Xu, Hao Lei
doaj +1 more source
Computing with DFT Band Offsets at Semiconductor Interfaces: A Comparison of Two Methods
Nanomaterials, 2021 Two DFT-based methods using hybrid functionals and plane-averaged profiles of the Hartree potential (individual slabs versus vacuum and alternating slabs of both materials), which are frequently used to predict or estimate the offset between bands at ...
José C. Conesa
doaj +1 more source
Spin alignment in superdeformed rotational bands [PDF]
Nuclear Physics A, 1990 Abstract Many superdeformed bands in different nuclei are found to have virtually identical moments of inertia and alignments that differ from each other by quantized amounts — multiples of 1 2 h . Pseudo spins represent the only source of quantized alignment that has been thought of to date. Additional puzzles in these bands are the absence
openaire +2 more sources