標題: The influence of UV filter and Al/Ag moisture barrier layer on the outdoor stability of polymer solar cells
作者: Weng, Chia-Ning
Yang, Hao-Chun
Tsai, Cheng-Yu
Chen, Szu-Han
Chen, Yan-Syun
Chen, Chao-Hsuan
Huang, Kuan-Min
Meng, Hsin-Fei
Chao, Yu-Chiang
Chang, Chih-Yu
Zan, Hsiao-Wen
Horng, Sheng-Fu
Yu, Pei-Chen
Su, Kuan-Wei
電子物理學系
物理研究所
光電工程學系
光電工程研究所
Department of Electrophysics
Institute of Physics
Department of Photonics
Institute of EO Enginerring
關鍵字: Polymer solar cell;Solution-processable;Ultraviolet stability;Moisture barrier
公開日期: 15-三月-2020
摘要: The degradation of the polymer solar cells in the outdoor condition was studied. It was found that the devices with normal structure (ITO/PEDOT:PSS/PBDTTT-EFT:PC71BM/ZrOx/Al) show better stability than those with inverted device structure (ITO/ZnO/PBDTTT-EFT:PC71BM/MoO3/Ag). PBDTTT-EFT is poly[4, 8-bis(5-(2-ethylhexyl) thiophen-2-yl) benzo [1,2-b;4,5-b] dithiophene-2, 6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno [3,4-b] thiophene-) - 2-carboxylate-2-6-diyl)] and PC71BM is [6,6]-phenyl-C71-butyric acid methyl ester. The major cause of degradation was attributed to the ultraviolet (UV) part of the sunlight. When the UV filter with cut-off wavelength of 400 nm was used to protect the device, the decay rate was improved by 50 times and the protected device retains 95% of their initial power conversion efficiency after 13 days outside. In the meanwhile, the decay of device fabricated by toluene was found 8 times faster than device by chlorobenzene. Thin 20 nm of Ag capping layer can further improve the stability. Degradation under water immersion indicates that the major effect of Ag is to protect against the residual moisture inside the encapsulation.
URI: http://dx.doi.org/10.1016/j.solener.2020.02.041
http://hdl.handle.net/11536/154140
ISSN: 0038-092X
DOI: 10.1016/j.solener.2020.02.041
期刊: SOLAR ENERGY
Volume: 199
起始頁: 308
結束頁: 316
顯示於類別:期刊論文