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A Narrow Optical Gap Small Molecule Acceptor for Organic Solar Cells
Author(s) -
Fang Yuan,
Pandey Ajay K.,
Nardes Alexandre M.,
Kopidakis Nikos,
Burn Paul L.,
Meredith Paul
Publication year - 2013
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201200372
Subject(s) - photocurrent , materials science , acceptor , band gap , excitation , optoelectronics , molecule , enhanced data rates for gsm evolution , polymer , organic solar cell , nanotechnology , computer science , telecommunications , physics , chemistry , condensed matter physics , organic chemistry , quantum mechanics , composite material
A new, strongly absorbing narrow optical gap small molecule acceptor YF25 is reported. When YF25 is blended with the archetypal donor P3HT, significant photocurrent red of the polymer optical gap is produced in addition to the normal response generated by the donor polymer. Using EQE and TRMC measurements we show that the additional photocurrent red of the donor edge is derived from excitation of the electron acceptor and subsequent hole‐transfer to P3HT.