TY - JOUR
T1 - α-CsPbI3 Colloidal Quantum Dots: Synthesis, Photodynamics, and Photovoltaic Applications
AU - Gan, Jiantuo
AU - He, Jingxuan
AU - Hoye, Robert L.Z.
AU - Mavlonov, Abdurashid
AU - Raziq, Fazal
AU - MacManus-Driscoll, Judith L.
AU - Wu, Xiaoqiang
AU - Li, Sean
AU - Zu, Xiaotao
AU - Zhan, Yiqiang
AU - Zhang, Xiaoyong
AU - Qiao, Liang
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21
PY - 2019/6/14
Y1 - 2019/6/14
N2 - Owing to their defect tolerance and phase stability, α-CsPbI3 colloidal quantum dots (CQDs) with high mobility and 80-95% photoluminescence quantum yield (PLQY) are promising candidates for next-generation photovoltaics (PVs). Recently, α-CsPbI3 CQD PVs have begun to show promising power conversion efficiencies of 13.4%, with the open-circuit voltage approaching the Shockley-Queisser limit. These devices are stable in ambient conditions for several months. However, the short-circuit current density (JSC) of a12 mA/cm2 is low, and the limiting mechanisms are unclear. In this work, we review the strategies for improving the JSC and the effect of interfaces and mobility of the charge transport layers on carrier extraction. We also evaluate strategies to enhance the stability of CsPbI3 CQDs under illumination, as well as methods to elucidate the recombination losses in the CQD PVs and methods to reduce these losses. This work provides routes to achieve efficient and stable α-CsPbI3 CQD PVs.
AB - Owing to their defect tolerance and phase stability, α-CsPbI3 colloidal quantum dots (CQDs) with high mobility and 80-95% photoluminescence quantum yield (PLQY) are promising candidates for next-generation photovoltaics (PVs). Recently, α-CsPbI3 CQD PVs have begun to show promising power conversion efficiencies of 13.4%, with the open-circuit voltage approaching the Shockley-Queisser limit. These devices are stable in ambient conditions for several months. However, the short-circuit current density (JSC) of a12 mA/cm2 is low, and the limiting mechanisms are unclear. In this work, we review the strategies for improving the JSC and the effect of interfaces and mobility of the charge transport layers on carrier extraction. We also evaluate strategies to enhance the stability of CsPbI3 CQDs under illumination, as well as methods to elucidate the recombination losses in the CQD PVs and methods to reduce these losses. This work provides routes to achieve efficient and stable α-CsPbI3 CQD PVs.
UR - https://pubs.acs.org/doi/10.1021/acsenergylett.9b00634
UR - http://www.scopus.com/inward/record.url?scp=85066916371&partnerID=8YFLogxK
U2 - 10.1021/acsenergylett.9b00634
DO - 10.1021/acsenergylett.9b00634
M3 - Article
SN - 2380-8195
VL - 4
SP - 1308
EP - 1320
JO - ACS Energy Letters
JF - ACS Energy Letters
IS - 6
ER -
