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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201907249
|2 doi
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|a pubmed24n1020.xml
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|a (DE-627)NLM30604899X
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|a (NLM)32009275
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Zou, Haiyang
|e verfasserin
|4 aut
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| 245 |
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|a Alternating Current Photovoltaic Effect
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a ErratumIn: Adv Mater. 2020 May;32(21):e2001532. - PMID 32449579
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a It is well known that the photovoltaic effect produces a direct current (DC) under solar illumination owing to the directional separation of light-excited charge carriers at the p-n junction, with holes flowing to the p-side and electrons flowing to the n-side. Here, it is found that apart from the DC generated by the conventional p-n photovoltaic effect, there is another new type of photovoltaic effect that generates alternating current (AC) in the nonequilibrium states when the illumination light periodically shines at the junction/interface of materials. The peak current of AC at high switching frequency can be much higher than that from DC. The AC cannot be explained by the established mechanisms for conventional photovoltaics; instead, it is suggested to be a result of the relative shift and realignment between the quasi-Fermi levels of the semiconductors adjacent to the junction/interface under the nonequilibrium conditions, which results in electron flow in the external circuit back and forth to balance the potential difference between two electrodes. By virtue of this effect, the device can work as a high-performance broadband photodetector with extremely high sensitivity under zero bias; it can also work as a remote power source providing extra power output in addition to the conventional photovoltaic effect
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|a Journal Article
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|a AC photovoltaic effect
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|a alternating current
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|a excessive carriers
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|a nonthermal equilibrium state
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|a photovoltaic effect
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4 |
|a quasi-Fermi levels
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| 700 |
1 |
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|a Dai, Guozhang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Aurelia Chi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Xiaogan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Steven L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ding, Wenbo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Ying
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhong Lin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 11 vom: 04. März, Seite e1907249
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:11
|g day:04
|g month:03
|g pages:e1907249
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|u http://dx.doi.org/10.1002/adma.201907249
|3 Volltext
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