6533b7d9fe1ef96bd126cab4

RESEARCH PRODUCT

Diketopyrrolopyrrole based D-π-A-π-D type small organic molecules as hole transporting materials for perovskite solar cells

Herbert MeierHao-liang ChengDerong CaoXiaojuan ZhaoLingyun WangYan ShenMingkui Wang

subject

Materials scienceInorganic chemistryEnergy Engineering and Power Technology02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnologyPhotochemistryTriphenylamine01 natural sciences0104 chemical sciencesOrganic moleculeschemistry.chemical_compoundFuel TechnologychemistryPhenothiazineElectrochemistryMolecule0210 nano-technologyEnergy (miscellaneous)Perovskite (structure)

description

Abstract Three novel diketopyrrolopyrrole (DPP) based small organic molecules were synthesized as hole transporting materials for perovskite solar cells. The effects of different donors and π bridges on the performance of perovskite solar cells (PSCs) were discussed. The efficiency of TPADPP-1, TPADPP-2, PTZDPP-2 was 5.10%, 9.85% and 8.16% respectively. Compared to TPADPP-2, the voltage of PTZDPP-2 was higher. Because the electron-donating ability of phenothiazine based donor was larger than that of triphenylamine based donor, the HOMO level of PTZDPP-2 was lower than that of TPADPP-2. The results indicated that the diketopyrrolopyrrole based D-π-A-π-D type small organic molecule might be a promising hole transporting material in the perovskite solar cells.

yearjournalcountryeditionlanguage
2018-07-01Journal of Energy Chemistry
https://doi.org/10.1016/j.jechem.2017.08.007