Correlation Between Crystallinity and Solar-Cell Efficiency of the Low-Bandgap Polymer PDDTP
| Autor: | Joachim A. Renz, Tobias Erb, Harald Hoppe, Gerhard Gobsch, Elisabeth Klemm, S. Shokhovets, Raja Shahid Ashraf |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Organic solar cell Crystallization of polymers Organic Chemistry Heterojunction Polymer Condensed Matter Physics Polymer solar cell law.invention Crystallinity Solar cell efficiency chemistry law Polymer chemistry Materials Chemistry Physical and Theoretical Chemistry Crystallization |
| Zdroj: | Macromolecular Chemistry and Physics. 211:1689-1694 |
| ISSN: | 1022-1352 |
| Popis: | Polymer/fullerene bulk heterojunction solar cells consisting of PDDTP:PCBM blends have been investigated and optimized. The structural properties of the photoactive layers were studied by GID-XRD, which revealed a pronounced response of photovoltaic parameters on the polymer crystallinity. In addition to P3HT, another donor polymer was found that develops crystalline domains upon annealing. We found a clear correlation between annealing time, power conversion efficiency, and polymer crystallinity. The PDDTP crystallization ability is a promising property. This is a first step toward the synthesis of low-bandgap polymers, which likewise show the ability to form crystalline domains and may therefore lead to a substantial increase in efficiency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text