Abstract
Push-coating is a simple process that can be employed for extremely low-cost polymer electronic device production. Here, we demonstrate its application to the fabrication of poly(2,7-carbazole- alt-dithienylbenzothiadiazole) (PCDTBT):[6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) active layers processed in air, yielding similar photovoltaic performances as thermally annealed spin-coated thin films when used in inverted polymer solar cells (PSCs). During push-coating, the polydimethylsiloxane layer temporarily traps the deposition solvent, resulting in simultaneous film formation and solvent annealing effect. This removes the necessity for a postdeposition thermal annealing step which is required for spin-coated PSCs to produce high photovoltaic performances. Optimized PSC active layers are produced with a push-coating time of 5 min at room temperature with 20 times less hazardous solvent and 40 times less active material than spin-coating. Annealed spin-coated active layers and active layers push-coated for 5 min both produce average power conversion efficiencies (PCEs) of 5.77%, while those push-coated for a shorter time of 1 min yield a slightly lower value of 5.59%. We demonstrate that, despite differences in their dono...Continue Reading
References
Jan 22, 2008·Nature Materials·Mariano Campoy-QuilesJenny Nelson
Sep 22, 2011·Advanced Materials·Minh Trung DangGuillaume Wantz
Nov 8, 2012·Nature Communications·Mitsuhiro IkawaTatsuo Hasegawa
Feb 16, 2013·Scientific Reports·Jihuai WuTsugio Sato
Jun 14, 2014·Scientific Reports·James W KingsleyAndrew J Parnell
Oct 30, 2014·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Huda A AlturaifSaikh M Wabaidur
Oct 16, 2015·Scientific Reports·Zhe LiJames R Durrant
Feb 10, 2016·Scientific Reports·Yiwei ZhangDavid G Lidzey
Nov 24, 2016·Science and Technology of Advanced Materials·Varun VohraLuisa Barba
Jul 1, 2017·ACS Applied Materials & Interfaces·Jaehoon KimChanghee Lee
Jul 8, 2017·ACS Applied Materials & Interfaces·Varun VohraFrancesco Galeotti
Aug 5, 2017·Materials·Shusei Inaba, Varun Vohra
Oct 25, 2017·Macromolecular Rapid Communications·Geoffrey PrunetEric Cloutet
Mar 17, 2018·ACS Applied Materials & Interfaces·Varun VohraChiara Botta
Mar 17, 2018·Nanomaterials·Ayaka SatoVarun Vohra
Mar 31, 2018·Advanced Materials·Shaoqing ZhangJianhui Hou
Jul 18, 2018·Nature Materials·Deping QianFeng Gao
Aug 11, 2018·Science·Lingxian MengYongsheng Chen
Sep 27, 2018·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Varun Vohra