Moisture-driven phase transition for improved perovskite solar cells with reduced trap-state density
Sign Up to like & getrecommendations! Published in 2017 at "Nano Research"
DOI: 10.1007/s12274-017-1515-5
Abstract: We report a mechanistic understanding of a moisture-driven intermediate-phase transition that improves the quality of perovskite thin films based on a lead-acetate precursor, improving the power-conversion efficiency. We clarify the composition of the intermediate phase… read more here.
Keywords: transition; phase transition; trap state; moisture driven ... See more keywords
Enhanced Charge Separation for Efficient Photocatalytic H2 Production by Long-Lived Trap-State-Induced Interfacial Charge Transfer.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c02005
Abstract: Photogeneration of charge carriers in semiconductors provides the scientific fundamental for photocatalytic water splitting. However, an ongoing challenge is the development of a new mechanism promoting charge carrier separation. Here we propose a trap-state-induced interfacial… read more here.
Keywords: state induced; interfacial charge; charge; charge transfer ... See more keywords
Inhomogeneous Trap-State-Mediated Ultrafast Photocarrier Dynamics in CsPbBr3 Microplates.
Sign Up to like & getrecommendations! Published in 2021 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.0c20733
Abstract: Quantitatively elucidating photocarrier dynamics mediated by trap states in perovskites is crucial for establishing a structure-performance relation and understanding the interfacial photocarrier transport mechanism. Here, trap-state-mediated photocarrier dynamics in defect-rich CsPbBr3 microplates are noninvasively investigated… read more here.
Keywords: cspbbr3 microplates; trap state; photocarrier dynamics; state mediated ... See more keywords
A Breakthrough Efficiency of 19.9% Obtained in Inverted Perovskite Solar Cells by Using an Efficient Trap State Passivator Cu(thiourea)I.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.7b01439
Abstract: It is extremely significant to study the trap state passivation and minimize the trap states of perovskite to achieve high-performance perovskite solar cells (PSCs). Here, we have first revealed and demonstrated that a novel p-type… read more here.
Keywords: perovskite solar; trap state; breakthrough efficiency; trap ... See more keywords
Trap-state mapping to model GaN transistors dynamic performance
Sign Up to like & getrecommendations! Published in 2022 at "Scientific Reports"
DOI: 10.1038/s41598-022-05830-7
Abstract: Trapping phenomena degrade the dynamic performance of wide-bandgap transistors. However, the identification of the related traps is challenging, especially in presence of non-ideal defects. In this paper, we propose a novel methodology (trap-state mapping) to… read more here.
Keywords: state mapping; trap state; trap; methodology ... See more keywords
An optoelectronic notch (‘dip’) phenomenon in the heterodyne photocarrier radiometry frequency response of Si wafers: a route to quantitative trap-state dynamic processes in semiconductors
Sign Up to like & getrecommendations! Published in 2020 at "Semiconductor Science and Technology"
DOI: 10.1088/1361-6641/abb8fc
Abstract: An anomaly was observed in the heterodyne photocarrier radiometry (HePCR) frequency response of Si wafers in the form of a signal amplitude depression (‘dip’) accompanied by a 180◦ phase transition. This phenomenon resembles an electronic… read more here.
Keywords: phenomenon; frequency; trap state; notch ... See more keywords
Impacts of Trap-State Generation on Tunnel Thin-Film Transistor
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Electron Devices"
DOI: 10.1109/ted.2018.2801361
Abstract: In this paper, the positive bias temperature instability (PBTI) of the tunnel thin-film transistor (TFT) is well studied and compared with the conventional-TFT. The tunnel-TFT exhibits superior PBTI immunity at high temperature and shows distinct… read more here.
Keywords: temperature; trap state; tunnel; state generation ... See more keywords