聚(3-烷基噻吩)/銅銦硒有機-無機混成材料之太陽能電池製備與光電性質研究

Studies on the preparation of hybrid soalr cells and opto-electrical property of poly(3-akylthiophene)s / CuInSe2

蔡協修(Shie-Shiou Tsai)

指導教授 ： 廖建勛

元智大學/工程學院/化學工程與材料科學學系/碩士(2008年)

https://doi.org/10.6838/YZU.2008.00104

摘要

本研究利用有機-無機混成材料製作高效率塊式異質接面元件的太陽能電池。將微波輔助合成之銅銦硒奈米微粒聚摻共軛高分子聚(3-烷基噻吩)，以增加電子的遷移率並提升電荷分離效率。銅銦硒奈米微粒於可見光區為全光譜的吸收，這也增加了光能量的吸收，PL實驗結果呈現聚(3-烷基噻吩)螢光放射的抑制現象，證明共軛高分子經由光激發所產生的電子轉移到銅銦硒奈米微粒上，使得聚(3-烷基噻吩)PL上的特徵放射峰強度降低。對於太陽能電池光活性層的探討，除了添加對太陽光能量吸收較強的材料之外，提升太陽能電池轉化效率最直接的方法是改善光活性層的表面型態，均勻的奈米相分離，對於太陽電池的效率的提升能有效的改善，另外，n-型半導體奈米微粒的濃度最佳值也是研究課題。本研究以場發射掃描式電子顯微鏡，進行光活性層表面型態的觀察，探討分散型態與添加重量百分濃度的關係。最後再以Solar simulator測量太陽能電池之電性質與效率，探討銅銦硒半導體奈米微粒在混成材料太陽能電池使用的功效。

關鍵字

塊式異質接面 ； 銅銦硒奈米微粒 ； 微波輔助合成

並列摘要

The aim of this study is to prepare an organic-inganic solar cell of bulk heterjunction with higher performance. The microwave-assisted synthesis of CuInSe2 nanoparticle by polyol method was blended with poly-(3-alkylthiophene) to increase the electron mobility and to improve the efficiency of charge separation. The CuInSe2 nanoparticle absorb the solar energy from ultraviolet to near RI range that increases the energy absorbed in the hybrid solar cell. The results reveal that the PL is quenching can be contributed to the electron transfer from conjugated polymer to CuInSe2 nanoparticle. The morphology of activitive layer also affects the performance of the soalr cell. The nano-phase separation and the loading composition of n-type semiconductor nanoparticle improve the performance of solar cells. The FE-SEM was used to observe the morphology of the activitive layer with weight percent of loading nanoparticles. Finally, the solar simulator were applied to study the electric characteristics and device performance.

並列關鍵字

Bulk heterojunction ； CuInSe2 nano particle ； Microwave-assisted synthesis

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