Synthesis and Photovoltaic Properties of 3,6-Di(thiophen-2-yl) Diketopyrrolopyrrole Based Star Shaped Conjugate Molecules

• Main Authors: Chun-Ho Chang, 張鈞賀
• Other Authors: 李榮和
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/kzt9bs

碩士 === 國立中興大學 === 化學工程學系所 === 101 === The diketopyrrolopyrrole-based star-shaped molecules TDTTPA were synthesized and used as a donor for bulk heterojunction photovoltaic devices. The TDTTPA show two absorption band in the range of 300-700 nm with the maximum absorption wavelengths at around 333 and 640 nm, A series of bulk heterojunction solar cells based on the blend of TDTTPA and [6,6]-phenyl C71-butyric acid methyl ester (PC71BM) in different weight ratio were fabricated. The power conversion efficiency (PCE) was strongly dependent on the composition of the blends. The current density and PCE of the TDTTPA/PC71BM blend (1:1.5, w/w) based solar cell were 5.50 mAcm-2 and 1.23 %,respectivity.