標題: Large scale two-dimensional nanobowl array high efficiency polymer solar cell
作者: Chen, Szu-Ying
Yen, Yu-Ting
Chen, Yi-Yang
Hsu, Chain-Shu
Chueh, Yu-Lun
Chen, Lih-Juann
應用化學系
Department of Applied Chemistry
公開日期: 2012
摘要: A two-dimensional nanobowl array (2D-NBRs) with a unique honeycomb nanostructure was demonstrated with controllable morphologies synthesized by the Langmuir-Blodgett (LB) method. The periodicity of 2D-NBRs can be controlled by utilizing different diameters of polystyrene (PS) balls ranged from 500 nm, 870 mu m, 1 mu m to 2 mu m. The reflectance measurements revealed that the planar structure with a poly(3-hexylthiophene) (P3HT)/(6,6)-phenyl-C61-butyric acid methyl ester (PCBM) bulk heterojunction layer as an active layer exhibits a reflectance of similar to 20 %, while a significant reduction of the reflectance <5-7 % can be achieved after formation of 2D-NBRs at a PS ball diameter of 500 nm, which perfectly matches simulation results. From experimental results, the highest efficiency of 5.4 % with a filling factor of 66 % was achieved for the device with 2D-NBRs at PS ball diameter of 870 nm. Compared to a planar device with an efficiency of 3.9 %, a maximum enhancement of similar to 40 % can be achieved owing to the enhancement of Jsc because of unique honeycomb geometry, which exhibits a broadband and omnidirectional light harvesting behavior. Furthermore, a flexible solar cell was demonstrated with an enhanced efficiency of 30 % for a planar structure of 1 % to 1.3 % for 2D-NBRs structure.
URI: http://hdl.handle.net/11536/15292
http://dx.doi.org/10.1039/c2ra01258h
ISSN: 2046-2069
DOI: 10.1039/c2ra01258h
期刊: RSC ADVANCES
Volume: 2
Issue: 4
起始頁: 1314
結束頁: 1317
顯示於類別:期刊論文


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  1. 000299695300014.pdf