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Synthesis and Characterization of New TPD-based Copolymers and Applications in Bulk Heterojunction Solar Cells
- Authors
- Cheon, Hyungin; Kim, Yu Jin; Hwang, Moon Chan; Hong, Jisu; An, Tae Kyu; Kwon, Soon-Ki; Kim, Yun-Hi
- Issue Date
- Jan-2018
- Publisher
- 한국고분자학회
- Keywords
- organic solar cell; polymer; energy device; bulk heterojunctions; thienopyrrolodione
- Citation
- Macromolecular Research, v.26, no.1, pp 29 - 34
- Pages
- 6
- Indexed
- SCI
SCIE
SCOPUS
KCI
- Journal Title
- Macromolecular Research
- Volume
- 26
- Number
- 1
- Start Page
- 29
- End Page
- 34
- ISSN
- 1598-5032
2092-7673
- Abstract
- We developed and synthesized two novel polymeric semiconductor materials containing thienopyrrolodione (TPD) units, with one of the polymers also containing thiophene (T) units and the other containing bi-thiophene (BT) units, and denoted as TPD-T and TPD-BT, respectively. TPD-T and TPD-BT were studied for bulk heterojunction organic solar cells as blends with [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM). The TPD-T-based device exhibited considerably better photovoltaic performances, with a power conversion efficiency of 2.51%, in contrast to the 1.63% value for the TPD-BT-based device. According to atomic force microscope images of the TPD-BT:PC71BM and TPD-T:PC71BM blend films, the latter showed more nanoscale phase aggregation, explaining its better photovoltaic properties.
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