한국재료학회:학술대회논문집 (Proceedings of the Materials Research Society of Korea Conference)
- 한국재료학회 2011년도 춘계학술발표대회
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- Pages.11.2-11.2
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- 2011
Synthesis and Design of Electroactive Polymers for Improving Efficiency and Thermal Stability in Organic Photovoltaics
초록
Polymer based organic photovoltaics have attracted a great deal of attention due to the potential cost-effectiveness of light-weight and flexible solar cells. However, most BHJ polymer solar cells are not thermally stable as subsequent exposure to heat drives further development of the morphology towards a state of macrophase separation in the micrometer scale. Here we would like to show three different approaches for developing new electroactive polymers to improve the thermal stability of the BHJ solar cells, which is a critical problem for the commercialization of these solar cells. For one of the examples, we report a new series of functionalized polythiophene (PT-x) copolymers for use in solution processed organic photovoltaics (OPVs). PT-x copolymers were synthesized from two different monomers, where the ratio of the monomers was carefully controlled to achieve a UV photo-crosslinkable layer while leaving the