Perfect Complementary in Absorption Spectra with Fullerene, Nonfullerene Acceptors and Medium Band Gap Donor for High-Performance Ternary Polymer Solar Cells
| Autor: | Tasawar Hayat, Yiming Bai, Jiyan Liu, Lixing Xia, Lin Liu, Hao Liu, Zhan'ao Tan, Siqian Hu, Ahmed Alsaedi, Jinyan Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Absorption spectroscopy business.industry Band gap 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Polymer solar cell 0104 chemical sciences Photoactive layer Absorption band Optoelectronics General Materials Science Charge carrier 0210 nano-technology Absorption (electromagnetic radiation) business Ternary operation |
| Zdroj: | ACS Applied Materials & Interfaces. 10:29831-29839 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.8b07993 |
| Popis: | Because of the mismatch between the solar irradiance spectra and the photoactive layer absorption spectra, only a part of sunlight can be utilized, which fundamentally restricting the power conversion efficiency (PCE) of the polymer solar cells (PSCs). Ternary blend PSCs, with an additional third component, have become an effective approach to extend the absorption spectra and increase the mobility of the charge carriers. Herein, we select the middle band gap PBDTBDD as an electron donor and narrow band gap ITIC and wide band gap PC60BM as electron acceptors to construct ternary blends for simultaneously enhancing the absorption intensity and expanding the absorption band. The optical properties, morphologies, and the charge-/energy-transfer behaviors of the ternary blends are investigated. By attentively adjusting the ratio of the third component, ITIC, the ternary PSCs demonstrate an expanded light-response region and greatly enhanced JSC, giving an improved overall PCE of 10.36%, much higher than that ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|