| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Efficient light trapping in inverted polymer solar cells by a randomly nanostructured electrode using monodispersed polymer nanoparticles |
| 초록 |
Mono-disperse 60 nm polystyrene nanoparticles (PS NPs) incorporated into a 50 nm thick poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) anode buffer layer (ABL) to create a randomly nanotextured back electrode with 10 nm height variations in inverted-type PSCs. The roughened interface between the PS NP-PEDOT:PSS ABL and the Ag electrode scatters light in the visible range, leading to efficient light trapping within the device and enhanced light absorption in the active layer. Inverted PSCs with randomly nanotextured electrodes (φNP = 0.31) showed short-circuit current density (JSC) and power conversion efficiency (PCE) values that were 15% higher than those of control devices with flat electrodes. External quantum efficiency, reflectance, and optical light scattering as a function of φNP were examined to determine the origin of the enhancement in JSC and PCE. |
| 저자 |
강동진, 강현범, 조창순, 김기현, 이정용, 김범준
|
| 소속 |
KAIST |
| 키워드 |
Light trapping; Nanostructured back electrode; Nanoparticle; Polymer solar cell
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| E-Mail |
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