Preparation and device performance of the conjugated polymer nanocomposite solar cells

• Main Authors: Wan-Shiou Chung, 莊婉袖
• Other Authors: 廖建勛
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/33986160240360804010

碩士 === 元智大學 === 化學工程與材料科學學系 === 97 === An organic-inorganic hybrid was prepared to solve the difficulty of nanoparticle disperesed into the blend of P3HT and C60 derivative PCBM. That blend system was used to fabricatie the bulk heterojunction solar cell. First, we prepared inorganic semiconductor nanoparticles CuInSe2 by microwave-assisted synthesis and the CdTe nanoparticles in aqueous solution. Then we used 1-decanethiol and thiol end-capped PFO with different molecular weight to modify nanoparticles obtaining CuInSe2-DT, CuInSe2-PFO, CdTe-DT, CdTe-PFO. Finally, the effect of nanoparticle addition on the perfromance of hybrid solar cells were compared. The encapsulated nanoparticle lengthening the carrier transport path results in a decrease of 3 order of magnitudes of short-circuit current ISC. The open-circuit voltage (Voc) of device is determined by the energy level of semiconductor’s HOMO value. For PFO modified nanoparticles, the molecular weight of polymer also affects the Voc of device due to the alkyl side-chain encapsulation.