[HTML][HTML] Hard x-ray photoelectron spectroscopy: a snapshot of the state-of-the-art in 2020

C Kalha, NK Fernando, P Bhatt… - Journal of Physics …, 2021 - iopscience.iop.org
Hard x-ray photoelectron spectroscopy (HAXPES) is establishing itself as an essential
technique for the characterisation of materials. The number of specialised photoelectron …

[HTML][HTML] Road map for nanocrystal based infrared photodetectors

C Livache, B Martinez, N Goubet, J Ramade… - Frontiers in …, 2018 - frontiersin.org
Infrared (IR) sensors based on epitaxially grown semiconductors face two main challenges
which are their prohibitive cost and the difficulty to rise the operating temperature. The quest …

Ultrahigh Performance of Self-Powered β-Ga2O3 Thin Film Solar-Blind Photodetector Grown on Cost-Effective Si Substrate Using High-Temperature Seed Layer

K Arora, N Goel, M Kumar, M Kumar - Acs Photonics, 2018 - ACS Publications
We demonstrated an ultrahigh-performance and self-powered β-Ga2O3 thin film solar-blind
photodetector fabricated on a cost-effective Si substrate using a high-temperature seed layer …

Electron–Hole Recombination Time at TiO2 Single-Crystal Surfaces: Influence of Surface Band Bending

K Ozawa, M Emori, S Yamamoto… - The Journal of …, 2014 - ACS Publications
Photocatalytic activity is determined by the transport property of photoexcited carriers from
the interior to the surface of photocatalysts. Because the carrier dynamics is influenced by a …

Extended Short-Wave Photodiode Based on CdSe/HgTe/Ag2Te Stack with High Internal Efficiency

P Rastogi, E Izquierdo, C Gréboval… - The Journal of …, 2022 - ACS Publications
Nanocrystal integration into focal plane arrays requires the development of new photodiode
designs combining an efficient charge dissociation with a low dark current. Previously …

Charge dynamics and optolectronic properties in HgTe colloidal quantum wells

C Livache, E Izquierdo, B Martinez, M Dufour… - Nano Letters, 2017 - ACS Publications
We investigate the electronic and transport properties of HgTe 2D colloidal quantum wells.
We demonstrate that the material can be made p-or n-type depending on the capping …

Investigating the role of oxygen and related defects in the self-biased and moderate-biased performance of β-Ga2O3 solar-blind photodetectors

K Arora, N Kumar, P Vashishtha… - Journal of Physics D …, 2021 - iopscience.iop.org
Abstract High-performance, low-cost, self-powered deep-ultraviolet photodetectors (DUV-
PDs) are essential for military and civil applications. β-Ga 2 O 3 stands alone among all the …

Radiative mechanism and surface modification of four visible deep level defect states in ZnO nanorods

EG Barbagiovanni, R Reitano, G Franzò, V Strano… - Nanoscale, 2016 - pubs.rsc.org
Visible luminescence from ZnO nanorods (NRs) is attracting large scientific interest for light
emission and sensing applications. We study visible luminescent defects in ZnO NRs as a …

Time-resolved X-ray photoelectron spectroscopy techniques for the study of interfacial charge dynamics

S Neppl, O Gessner - Journal of Electron Spectroscopy and Related …, 2015 - Elsevier
X-ray photoelectron spectroscopy (XPS) is one of the most powerful techniques to
quantitatively analyze the chemical composition and electronic structure of surfaces and …

Non-equilibrium band broadening, gap renormalization and band inversion in black phosphorus

H Hedayat, A Ceraso, G Soavi, S Akhavan… - 2D …, 2021 - iopscience.iop.org
Black phosphorous (BP) is a layered semiconductor with high carrier mobility, anisotropic
optical response and wide bandgap tunability. In view of its application in optoelectronic …