Improved power conversion efficiency for bulk heterojunction solar cells incorporating CdTe-CdSe nanoheterostructure acceptors and a conjugated polymer donor
Source abstract
Abstract
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.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films · Perovskite Materials and Applications
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Affiliations
National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
Micro/Nano Research Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
Princeton University, Department of Chemistry, Princeton, New Jersey 08544, United States
References
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