磷光材料摻雜於高分子太陽能電池之研究

蔡亦哲

doi:10.6844/NCKU.2015.01410

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磷光材料摻雜於高分子太陽能電池之研究

Investigation of phosphorescent material-doped polymer solar cell

蔡亦哲 , Masters　　Advisor：許渭州　　

英文 DOI： 10.6844/NCKU.2015.01410

高分子太陽能電池；磷光材料；摻雜； Polymer solar cell ； Phosphorescent material ； Doping

Abstract │ Reference (58) │ Altmetrics

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In this thesis, we fabricated the polymer solar cells with doping different phosphorescent materials in active layer to enhance power conversion efficiency. The phosphorescent materials (Ir(ppz)3, Ir(mppy)3, Ir(piq)2(acac)) was respectively doped into the bulk heterojunction layer of P3HT and ICBA blend to form more excitons in the triplet state. Triplet-state excitons have longer lifetimes than singlet-state excitons. Therefore, more carriers were collected through the dissociation of excitons at the interface, resulting in the significant improvement of JSC. In order to optimize the device performance, we investigate the doping concentration of phosphorescent material and thermal annealing parameter of active layer. However, doping phosphorescent material is a trade-off between extend the exciton lifetime and damage original morphology in PCE of polymer solar cell. It is possible that decrease PCE of device when doping phosphorescent material. So we investigate the different phosphorescent materials carrier transport characteristics, surface morphology of active layer, distribution in active layer, and extended excitons lifetime. The optimal performance was doping 0.1wt% Ir(ppz)3 in P3HT:ICBA, which JSC is 12.4 mA/cm2, VOC is 0.85V, FF is 66.7%, and PCE is 7.08%.

Reference ( 58 ) 〈TOP〉

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連結：
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連結：
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