Ultrafast Electron Injection from Photoexcited Perovskite CsPbI3 QDs into TiO2 Nanoparticles with Injection Efficiency near 99
Photoexcited electron injection dynamics from CsPbI3 quantum dots (QDs) to wide gap metal oxides are studied by transient absorption spectroscopy. Experimental results show under a low excitation intensity that ∼99% of the photoexcited electrons in CsPbI3 QDs can be injected into TiO2 with a size-dependent rate ranging from 1.30 × 1010 to 2.10 × 1010 s-1, which is also ∼2.5 times faster than that in the case of ZnO. A demonstration QD-sensitized solar cell based on a CsPbI3/TiO2 electrode is fabricated that delivers a power conversion efficiency of 5%.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:9 |
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| Enthalten in: |
The journal of physical chemistry letters - 9(2018), 2 vom: 18. Jan., Seite 294-297 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Feng [VerfasserIn] |
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| Themen: |
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| Anmerkungen: |
Date Completed 05.02.2018 Date Revised 05.02.2018 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acs.jpclett.7b03062 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM27950067X |
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| 245 | 1 | 0 | |a Ultrafast Electron Injection from Photoexcited Perovskite CsPbI3 QDs into TiO2 Nanoparticles with Injection Efficiency near 99 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Photoexcited electron injection dynamics from CsPbI3 quantum dots (QDs) to wide gap metal oxides are studied by transient absorption spectroscopy. Experimental results show under a low excitation intensity that ∼99% of the photoexcited electrons in CsPbI3 QDs can be injected into TiO2 with a size-dependent rate ranging from 1.30 × 1010 to 2.10 × 1010 s-1, which is also ∼2.5 times faster than that in the case of ZnO. A demonstration QD-sensitized solar cell based on a CsPbI3/TiO2 electrode is fabricated that delivers a power conversion efficiency of 5% | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Zhang, Yaohong |e verfasserin |4 aut | |
| 700 | 1 | |a Ding, Chao |e verfasserin |4 aut | |
| 700 | 1 | |a Toyoda, Taro |e verfasserin |4 aut | |
| 700 | 1 | |a Ogomi, Yuhei |e verfasserin |4 aut | |
| 700 | 1 | |a Ripolles, Teresa S |e verfasserin |4 aut | |
| 700 | 1 | |a Hayase, Shuzi |e verfasserin |4 aut | |
| 700 | 1 | |a Minemoto, Takashi |e verfasserin |4 aut | |
| 700 | 1 | |a Yoshino, Kenji |e verfasserin |4 aut | |
| 700 | 1 | |a Dai, Songyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Shen, Qing |e verfasserin |4 aut | |
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