1309943-07-4Relevant academic research and scientific papers
Morphological stabilization by in situ polymerization of fullerene derivatives leading to efficient, thermally stable organic photovoltaics
Cheng,Hsieh,Li,Hsu
, p. 1723 - 1732 (2011)
The successful design and synthesis of two styryl-functionalized fullerene derivatives, [6,6]-phenyl-C61 -butyric acid styryl dendron ester (PCBSD) and [6,6]-phenyl-C61 -butyric acid styryl ester (PCBS) is presented. The polymerizabl
N-Doping of thermally polymerizable fullerenes as an electron transporting layer for inverted polymer solar cells
Cho, Namchul,Yip, Hin-Lap,Hau, Steven K.,Chen, Kung-Shih,Kim, Tae-Wook,Davies, Joshua A.,Zeigler, David F.,Jen, Alex K.-Y.
experimental part, p. 6956 - 6961 (2011/11/28)
A novel [6,6]-phenyl-C61-butyric acid methyl styryl ester (PCBM-S) was synthesized and employed as an electron transporting interfacial layer for bulk heterojunction polymer solar cells with an inverted device configuration. After the deposition of PCBM-S film from solution, the styryl groups of PCBM-S were polymerized by post-thermal treatment to form a robust film which is resistive to common organic solvents. This allows the solution processing of upper bulk heterojunction film without eroding the PCBM-S layer. Additionally, the PCBM-S was n-doped with decamethylcobaltocene (DMC) to increase the conductivity of the film, which resulted in a significantly improved power conversion efficiency from 1.24% to 2.33%. The improved device performance is due to the decrease of series resistance and improved electron extraction property of the n-doped PCBM-S film.
