Journal
CHEMPHYSCHEM
Volume 20, Issue 20, Pages 2702-2711Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201900068
Keywords
Lewis base; perovskite; solar energy; truxene
Funding
- Generalitat de Catalunya Funding Source: Medline
- MICINN [CTQ2016-80042-R] Funding Source: Medline
- Juan de la Cierva-Incorporación program [IJCI-2016-29762] Funding Source: Medline
- AGAUR funding [2017 SGR 00978] Funding Source: Medline
Ask authors/readers for more resources
Truxene derivatives, due to their molecular structure and properties, are good candidates for the passivation of defects when deposited onto hybrid lead halide perovskite thin films. Moreover, their semiconductor characteristics can be tailored through the modification of their chemical structure, which allows-upon light irradiation- the interfacial charge transfer between the perovskite film and the truxene molecules. In this work, we analysed the use of the molecules as surface passivation agents and their use in complete functional solar cells. We observed that these molecules reduce the non-radiative carrier recombination dynamics in the perovskite thin film through the supramolecular complex formation between the Truxene molecule and the Pb2+ defects at the perovskite surface. Interestingly, this supramolecular complexation neither affect the carrier recombination kinetics nor the carriers collection but induced noticeable hysteresis on the photocurrent vs voltage curves of the solar cells under 1 sun illumination.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available