Effect of the side chains and anode material on thermal stability and performance of bulk-heterojunction solar cells using DPP(TBFu).sub.2./sub. derivatives as donor materials

0486340 - FZÚ 2018 RIV EG eng J - Článek v odborném periodiku
Kovalenko, A. - Honová, J. - Vala, M. - Luňák, S. - Fekete, Ladislav - Horáková, P. - Dokládalová, L. - Kubáč, L. - Weiter, M.
Effect of the side chains and anode material on thermal stability and performance of bulk-heterojunction solar cells using DPP(TBFu)₂ derivatives as donor materials.
International Journal of Photoenergy. Roč. 2015, Dec (2015), s. 1-9, č. článku 734917. ISSN 1110-662X. E-ISSN 1687-529X
Grant CEP: GA MŠMT LO1409; GA ČR(CZ) GA15-05095S
Institucionální podpora: RVO:68378271
Klíčová slova: power conversion efficiency * diketopyrrolopyrrole derivatives * organic photovoltaics * conjugated molecules
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 1.226, rok: 2015

An optimized fabrication of bulk-heterojunction solar cells (BHJ SCs) based on previously reported diketopyrrolopyrrole donor,ethyl-hexylated DPP(TBFu)2, as well as two new DPP(TBFu)2 derivatives with ethyl-hexyl acetate and diethyl acetal solubilizing side-chains and PC60BM as an acceptor is demonstrated. Slow gradual annealing of the solar cell causing the effective donoracceptor reorganization, and as a result higher power conversion efficiency (PCE), is described. By replacing a hole transporting layer PEDOT:PSS with MoO3 we obtained higher PCE values as well as higher thermal stability of the anode contact interface. DPP(TBFu)2 derivative containing ethyl-hexyl acetate solubilizing side-chains possessed the best as-cast self-assembly and high crystallinity.
Trvalý link: http://hdl.handle.net/11104/0281176