TY - JOUR
T1 - Improved power conversion efficiency for bulk heterojunction solar cells incorporating CdTe-CdSe nanoheterostructure acceptors and a conjugated polymer donor
AU - Dayal, Smita
AU - Zhong, Haizheng
AU - Kopidakis, Nikos
AU - Scholes, Gregory D.
AU - Rumbles, Garry
N1 - Publisher Copyright:
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE).
PY - 2015/1/1
Y1 - 2015/1/1
N2 - We report photovoltaic devices based on composites of a branched nanoheterostructure containing a CdTe core and CdSe arms, CdTe(c)-CdSe(a), combined with either poly(3-hexylthiophene), P3HT, or poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)], PCPDTBT, with solar power conversion efficiencies of 1.2% and 1.8%, respectively. A comparison with previously reported composite devices of a related branched nanoheterostructure: CdSe(c)-CdTe(a) reveals an improved device performance that is attributed to a better electron percolation pathway provided by the dominant, higher electron affinity CdSe arms of the nanoheterostructures.
AB - We report photovoltaic devices based on composites of a branched nanoheterostructure containing a CdTe core and CdSe arms, CdTe(c)-CdSe(a), combined with either poly(3-hexylthiophene), P3HT, or poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)], PCPDTBT, with solar power conversion efficiencies of 1.2% and 1.8%, respectively. A comparison with previously reported composite devices of a related branched nanoheterostructure: CdSe(c)-CdTe(a) reveals an improved device performance that is attributed to a better electron percolation pathway provided by the dominant, higher electron affinity CdSe arms of the nanoheterostructures.
KW - PCPDTBT
KW - nanoheterostructures
KW - p3HT
KW - photovoltaic devices
KW - solar power conversion efficiency
UR - http://www.scopus.com/inward/record.url?scp=84961290026&partnerID=8YFLogxK
U2 - 10.1117/1.JPE.5.057409
DO - 10.1117/1.JPE.5.057409
M3 - Article
AN - SCOPUS:84961290026
SN - 1947-7988
VL - 5
JO - Journal of Photonics for Energy
JF - Journal of Photonics for Energy
IS - 1
M1 - 057409
ER -