Efficient cascade multiple heterojunction organic solar cells with inverted structure
| Autor: | Peiguang Shi, Nianjun Feng, Jianhong Zhao, Mingtao Li, Wang Xiaoyan, Leiming Yu, Zhenfang Qiao, Hai Wang, Tingting Guo, Pu Xiaoyun |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Organic solar cell Open-circuit voltage Energy conversion efficiency Analytical chemistry Heterojunction 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Acceptor 0104 chemical sciences chemistry.chemical_compound chemistry Cascade Phthalocyanine General Materials Science Electrical and Electronic Engineering 0210 nano-technology Short circuit |
| Zdroj: | Superlattices and Microstructures. 117:215-219 |
| ISSN: | 0749-6036 |
| DOI: | 10.1016/j.spmi.2018.03.015 |
| Popis: | In this work, we demonstrate an efficient cascade multiple heterojunction organic solar cell with inverted structure. By using two donor materials, poly(3-hexylthiosphene) (P3HT) and titanyl phthalocyanine (TiOPc), as well as two acceptor materials, [6,6]-phenyl C 61 butyric acid methyl ester (PCBM) and C 60 , the cascade multiple heterojunctions of P3HT:PCBM/TiOPc:C 60 /C 60 have been constructed. Applying the optimized inverted configuration of FTO/Zinc Tin Oxide (ZTO)/C 60 (30 nm)/TiOPc:C 60 (1:1.5, 25 nm)/P3HT:PCBM (1:0.8, 100 nm)/MoO 3 (4 nm)/Ag, the considerably enhanced open circuit voltage ( V OC ) and short circuit current ( J SC ) can be harvested together, and the power conversion efficiency (PCE) is three times higher than that of the control cell with conventional structure. The significant improvements of the inverted cell are mostly due to the broadened spectral absorption and high efficient multi-interface exciton dissociation in the cascade multiple heterojunctions, indicating that the optimized cascade heterojunctions match the inverted structure well. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect