標題: High-Efficiency Organic Tandem Solar Cells With Effective Transition Metal Chelates Interconnecting Layer
作者: Chang, Sheng-Yung
Lin, Yu-Che
Sun, Pengyu
Hsieh, Yao-Tsung
Meng, Lei
Bae, Sang-Hoon
Su, Yu-Wei
Huang, Wenchao
Zhu, Chenhui
Li, Gang
Wei, Kung-Hwa
Yang, Yang
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: polymer solar cell;tandem;electron transport layer;inverted type
公開日期: 1-十月-2017
摘要: Organic tandem solar cells have two sub-cells vertically connected via a tunnel junction (or interconnecting layer, ICL), which the ICL plays a critical role of determining the performance of the tandem cell. In this manuscript, we report a new design of the ICL consisting of zirconium (IV) acetylacetonate (Zr-Acac) as the electron transport layer. The Zr-Acac has a suitable work function to pin the Fermi-level of the ICL and hence, can effectively behave as the charge recombination function for the tandem device. Comparing to the reference device consisting of ZnO ETL layer, the Zr-Acac ICL can effectively enhance the efficiency by 20%, from 8.4 to 10.1% power conversion efficiencies. More importantly, the Zr-Acac ETL layer functions effectively without thermal annealing, which not only simplifies the tandem solar cell processing, but also widens the front sub-cell material selection.
URI: http://dx.doi.org/10.1002/solr.201700139
http://hdl.handle.net/11536/153625
ISSN: 2367-198X
DOI: 10.1002/solr.201700139
期刊: SOLAR RRL
Volume: 1
Issue: 10
起始頁: 0
結束頁: 0
顯示於類別:期刊論文