Results 1 to 10 of about 177,978 (297)
Nanoscale mapping of quasiparticle band alignment [PDF]
Nature Communications, 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 ...
Søren Ulstrup +12 more
doaj +6 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 ...
Shiel, H +12 more
openaire +4 more sources
Energy band alignment at the nanoscale [PDF]
Applied Physics Letters, 2017 The energy band alignments at interfaces often determine the electrical functionality of a device. Along with the size reduction into the nanoscale, functional coatings become thinner than a nanometer. With the traditional analysis of the energy band alignment by in situ photoelectron spectroscopy, a critical film thickness is needed to determine the ...
Jonas Deuermeier +3 more
core +3 more sources
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 +3 more sources
Ferroelectric-tuned van der Waals heterojunction with band alignment evolution [PDF]
Nature Communications, 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 ...
Yan Chen +14 more
doaj +2 more sources
Electric-field tunable Type-I to Type-II band alignment transition in MoSe2/WS2 heterobilayers [PDF]
Nature CommunicationsSemiconductor 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).
Jed Kistner-Morris +9 more
doaj +2 more sources
Investigation of Nitridation on the Band Alignment at MoS2/HfO2 Interfaces [PDF]
Nanoscale Research Letters, 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
Ya-Wei Huan +6 more
doaj +2 more sources
BAND ALIGNMENT OF ULTRATHIN GIZO/SiO2/Si HETEROSTRUCTURE DETERMINED BY ELECTRON SPECTROSCOPY
Makara Seri Sains, 2011 Amorphous GaInZnO (GIZO) thin films are grown on SiO2/Si substrate by the RF magnetron sputtering method. By thecombination of measured band gaps from reflection energy loss spectroscopy (REELS) spectra and valence band fromX-ray photo-electron ...
Hee Jae Kang2 +2 more
doaj +1 more source
Dynamic Control of Band Alignment and Built‐In Potential in High Performance Self‐Powered InSe/SnS2 Van der Waals Photodetectors via Gas Molecular Physisorption [PDF]
Small ScienceMolecular physisorption provides a versatile strategy to dynamically tailor the optoelectronic properties of van der Waals (vdW) heterostructures, enabling extended carrier lifetimes, broadened spectral response, and erasable memory effects in self ...
Ze Cao +6 more
doaj +2 more sources
AIP Advances, 2016 The energy band alignment between pulsed-laser-deposited TiO2 and FTO was firstly characterized using high-resolution X-ray photoelectron spectroscopy.
Haibo Fan +5 more
doaj +2 more sources