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 |