Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells
Wang Q, Zu F, Caprioglio P, Wolff CM, Stolterfoht M, Li M, Turren-Cruz S-H, Koch N, Neher D, Abate A (2020)
ACS Energy Letters 5(7): 2343-2348.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Autor*in
Wang, Qiong;
Zu, Fengshuo;
Caprioglio, Pietro;
Wolff, Christian M.;
Stolterfoht, Martin;
Li, Meng;
Turren-Cruz, Silver-Hamill;
Koch, Norbert;
Neher, Dieter;
Abate, AntonioUniBi 
Einrichtung
Abstract / Bemerkung
Although SnO2 has been reported to give high efficiencies of over 20% for organic–inorganic perovskite solar cells and has been frequently used in perovskite tandem solar cells, very few contributions have explored its feasibility in inorganic perovskite solar cells (IPSCs). Inorganic perovskites with a wide bandgap tunable from 1.7 to 2.0 eV are promising candidates for top cells in tandem structures; development of IPSCs based on SnO2 will greatly benefit their integration into tandem solar cells. We examined SnO2 in comparison to the prevalent TiO2. We found that although SnO2 had a good energy alignment with the inorganic perovskite and exhibited slower nonradiative recombination, the relatively low conduction band minimum energy offset restricted efficient charge extraction. In contrast, TiO2 that had a large energy offset of ∼400 meV led to a high fill factor of 78.7% and a state-of-the-art efficiency of 14.2% for IPSCs with a bandgap of 1.93 eV.
Erscheinungsjahr
2020
Zeitschriftentitel
ACS Energy Letters
Band
5
Ausgabe
7
Seite(n)
2343-2348
ISSN
2380-8195
eISSN
2380-8195
Page URI
https://pub.uni-bielefeld.de/record/2978828
Zitieren
Wang Q, Zu F, Caprioglio P, et al. Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells. ACS Energy Letters. 2020;5(7):2343-2348.
Wang, Q., Zu, F., Caprioglio, P., Wolff, C. M., Stolterfoht, M., Li, M., Turren-Cruz, S. - H., et al. (2020). Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells. ACS Energy Letters, 5(7), 2343-2348. https://doi.org/10.1021/acsenergylett.0c00980
Wang, Qiong, Zu, Fengshuo, Caprioglio, Pietro, Wolff, Christian M., Stolterfoht, Martin, Li, Meng, Turren-Cruz, Silver-Hamill, Koch, Norbert, Neher, Dieter, and Abate, Antonio. 2020. “Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells”. ACS Energy Letters 5 (7): 2343-2348.
Wang, Q., Zu, F., Caprioglio, P., Wolff, C. M., Stolterfoht, M., Li, M., Turren-Cruz, S. - H., Koch, N., Neher, D., and Abate, A. (2020). Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells. ACS Energy Letters 5, 2343-2348.
Wang, Q., et al., 2020. Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells. ACS Energy Letters, 5(7), p 2343-2348.
Q. Wang, et al., “Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells”, ACS Energy Letters, vol. 5, 2020, pp. 2343-2348.
Wang, Q., Zu, F., Caprioglio, P., Wolff, C.M., Stolterfoht, M., Li, M., Turren-Cruz, S.-H., Koch, N., Neher, D., Abate, A.: Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells. ACS Energy Letters. 5, 2343-2348 (2020).
Wang, Qiong, Zu, Fengshuo, Caprioglio, Pietro, Wolff, Christian M., Stolterfoht, Martin, Li, Meng, Turren-Cruz, Silver-Hamill, Koch, Norbert, Neher, Dieter, and Abate, Antonio. “Large Conduction Band Energy Offset Is Critical for High Fill Factors in Inorganic Perovskite Solar Cells”. ACS Energy Letters 5.7 (2020): 2343-2348.
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