Ferroelectric-tuned van der Waals heterojunction with band alignment evolution. [PDF]
Nat Commun, 2021 Band alignment engineering is important to realize high performance and multifunctionality in a specific van der Waals heterojunction. Here, the authors observe band alignment transition of the heterojunction in a ferroelectric-tuned van der Waals ...
Chen Y +14 more
europepmc +3 more sources
Electric-field tunable Type-I to Type-II band alignment transition in MoSe2/WS2 heterobilayers. [PDF]
Nat CommunSemiconductor heterojunctions are ubiquitous components of modern electronics. Their properties depend crucially on the band alignment at the interface, which may exhibit straddling gap (type-I), staggered gap (type-II) or broken gap (type-III).
Kistner-Morris J +9 more
europepmc +3 more sources
Nanoscale mapping of quasiparticle band alignment. [PDF]
Nat Commun, 2019 Sharp atomic interfaces between materials dictate the interface’s electronic properties. The authors use angle-resolved photoemission spectroscopy with a spatial resolution of ~500 nm to investigate the nanoscale electronic band structure and band ...
Ulstrup S +12 more
europepmc +6 more sources
Momentum-matching and band-alignment van der Waals heterostructures for high-efficiency infrared photodetection. [PDF]
Sci Adv, 2022 Two-dimensional (2D) infrared photodetectors always suffer from low quantum efficiency (QE) because of the limited atomically thin absorption. Here, we reported 2D black phosphorus (BP)/Bi2O2Se van der Waals (vdW) photodetectors with momentum-matching ...
Chen Y +15 more
europepmc +2 more sources
Reversible Half Wave Rectifier Based on 2D InSe/GeSe Heterostructure with Near-Broken Band Alignment. [PDF]
Adv Sci (Weinh), 2021 2D van der Waals heterostructures (vdWHs) offer tremendous opportunities in designing multifunctional electronic devices. Due to the ultrathin nature of 2D materials, the gate‐induced change in charge density makes amplitude control possible, creating a ...
Yan Y +11 more
europepmc +2 more sources
Band alignment of Sb2O3 and Sb2Se3 [PDF]
Journal of Applied Physics, 2021 Antimony selenide (Sb2Se3) possesses great potential in the field of photovoltaics (PV) due to its suitable properties for use as a solar absorber and good prospects for scalability. Previous studies have reported the growth of a native antimony oxide (Sb2O3) layer at the surface of Sb2Se3 thin films during deposition and exposure to air, which can ...
Huw Shiel +12 more
openaire +4 more sources
Highly efficient planar perovskite solar cells through band alignment engineering [PDF]
Energy and Environmental Science, 2015 The simplification of perovskite solar cells (PSCs), by replacing the mesoporous electron selective layer (ESL) with a planar one, is advantageous for large-scale manufacturing.
Ludmilla Steier +2 more
exaly +3 more sources
Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTS. [PDF]
Sci Rep, 2020 Energy band alignment at the heterointerface between CdS and kesterite Cu2ZnSnS4 (CZTS) and its alloys plays a crucial role in determining the efficiency of the solar cells.
Gansukh M +9 more
europepmc +2 more sources
Investigation of Nitridation on the Band Alignment at MoS2/HfO2 Interfaces. [PDF]
Nanoscale Res Lett, 2019 The effect of nitridation treatment on the band alignment between few-layer MoS2 and HfO2 has been investigated by X-ray photoelectron spectroscopy. The valence (conduction) band offsets of MoS2/HfO2 with and without nitridation treatment were determined
Huan YW +6 more
europepmc +2 more sources
Enhancement in the performance of nanostructured CuO-ZnO solar cells by band alignment. [PDF]
RSC Adv, 2020 In this study, we investigated the effect of cobalt doping on band alignment and the performance of nanostructured ZnO/CuO heterojunction solar cells. ZnO nanorods and CuO nanostructures were fabricated by a low-temperature and cost-effective chemical ...
Kaphle A +3 more
europepmc +2 more sources