10.3389/fenrg.2019.00011.s001
Shuhei Ozu
Shuhei
Ozu
Yaohong Zhang
Yaohong
Zhang
Hironobu Yasuda
Hironobu
Yasuda
Yukiko Kitabatake
Yukiko
Kitabatake
Taro Toyoda
Taro
Toyoda
Masayuki Hirata
Masayuki
Hirata
Kenji Yoshino
Kenji
Yoshino
Kenji Katayama
Kenji
Katayama
Shuzi Hayase
Shuzi
Hayase
Ruixiang Wang
Ruixiang
Wang
Qing Shen
Qing
Shen
Table_1_Improving Photovoltaic Performance of ZnO Nanowires Based Colloidal Quantum Dot Solar Cells via SnO2 Passivation Strategy.DOCX
Frontiers
2019
colloidal quantum dot solar cells
PbS
ZnO nanowire
surface passivation
interfacial recombination
SnO2
2019-02-20 06:39:16
Dataset
https://frontiersin.figshare.com/articles/dataset/Table_1_Improving_Photovoltaic_Performance_of_ZnO_Nanowires_Based_Colloidal_Quantum_Dot_Solar_Cells_via_SnO2_Passivation_Strategy_DOCX/7744796
<p>Colloidal quantum dot solar cells (CQDSCs) based on one-dimensional metal oxide nanowires (NWs) as the electron transport layer (ETL) have attracted much attention due to their larger ETL/colloidal quantum dots (CQDs) contact area and longer electron transport length than other structure CQDSCs, such as planar CQDSCs. However, it is known that defect states in NWs would increase the recombination rate because of the high surface area of NWs. Here, the defect species on the ZnO NWs' surface which resulted in the surface recombination and SnO<sub>2</sub> passivation effects were investigated. Comparing with the solar cells using pristine ZnO NWs, the CQDSCs based on SnO<sub>2</sub> passivated ZnO NW electrodes exhibited a beneficial band alignment to charge separation, and the interfacial recombination at the ZnO/CQD interface was reduced, eventually resulting in a 40% improvement of power conversion efficiency (PCE). Overall, these findings indicate that surface passivation and the reduction of deep level defects in ETLs could contribute to improving the PCE of CQDSCs.</p>