Carrier Multiplication in PbS Quantum Dots Anchored on a Au Tip using Conductive Atomic Force Microscopy.
Sign Up to like & getrecommendations! Published in 2020 at "Advanced materials"
DOI: 10.1002/adma.201908461
Abstract: Carrier multiplication (CM) is the amplification of the excited carrier density by two times or more when the incident photon energy is larger than twice the bandgap of semiconductors. A practical approach to demonstrate the… read more here.
Keywords: photocurrent; quantum; carrier multiplication; energy ... See more keywords
Carrier Multiplication in Transition Metal Dichalcogenides Beyond Threshold Limit
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Science"
DOI: 10.1002/advs.202203400
Abstract: Carrier multiplication (CM), multiexciton generation by absorbing a single photon, enables disruptive improvements in photovoltaic conversion efficiency. However, energy conservation constrains the threshold energy to at least twice bandgap (2 Eg$ E_\text{g}$ ). Here, a… read more here.
Keywords: threshold limit; transition metal; metal dichalcogenides; carrier multiplication ... See more keywords
Model To Determine a Distinct Rate Constant for Carrier Multiplication from Experiments
Sign Up to like & getrecommendations! Published in 2019 at "ACS Applied Energy Materials"
DOI: 10.1021/acsaem.8b01779
Abstract: Carrier multiplication (CM) is the process in which multiple electron–hole pairs are created upon absorption of a single photon in a semiconductor. CM by an initially hot charge carrier occurs in competition with cooling by… read more here.
Keywords: rate constant; carrier multiplication; rate; distinct rate ... See more keywords
High-Performance Graphene/β-Ga2O3 Heterojunction Deep-Ultraviolet Photodetector with Hot-Electron Excited Carrier Multiplication.
Sign Up to like & getrecommendations! Published in 2018 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.8b05336
Abstract: Solar-blind ultraviolet (SBUV) detection has important applications in wireless secure communication, early warning, and so forth. However, the desired key device for SBUV detection and high-sensitivity and low-noise "sandwich" photodetector with large detective area is… read more here.
Keywords: carrier multiplication; photodetector; graphene; ultraviolet ... See more keywords
Modeling Gain Mechanisms in Amorphous Silicon Due to Efficient Carrier Multiplication and Trap-Induced Junction Modulation
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2019.2927622
Abstract: Amorphous materials have low mobility due to their nature of disorder. Surprisingly, some disordered materials showed photocurrent amplification not by conventional photoconductive gain. Recently, amorphous Silicon (a-Si) photodiodes with thin a-Si layer (∼40 nm) have… read more here.
Keywords: carrier multiplication; amorphous silicon; trap induced; gain ... See more keywords