Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 14, Issue 38, Pages 13199-13203Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp42922e
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Funding
- program Understanding Charge Separation and Transfer at Interfaces in Energy Materials (EFRC:CST), an Energy Frontier Research Center
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001091]
- NSF IGERT program [DGE-054917]
- A*STAR under the visiting investigator program (VIP)
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Scanning confocal photocurrent microscopy has been used to characterize carrier collection efficiency in lateral bulk heterojunction devices. By analyzing the photocurrent mappings within these devices, the lateral extents of the space charge regions have been measured and reported. Modulation via white light bias or increased voltage bias is also shown to increase the size of the space charge regions.
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