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Detection of trap charge in small molecular organic bulk heterojunction solar cells

Abstract:

We detect and measure the trap charges in a small molecular bulk heterojunction solar cell under operating conditions. The trap-charge density is estimated from capacitance measurements with light incident on the sample. At high intensities (∼1 sun, 100 mW/cm2), the trapped charge concentration leads to a spatial distortion of the electric field in the device. The lower limit of the trap-charge density is estimated to be 6 × 1016 cm−3. The frequency dependence...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevB.82.125204

Authors


Burtone, L More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B - Condensed Matter and Materials Physics Journal website
Volume:
82
Issue:
12
Pages:
Article: 125204
Publication date:
2010-09-07
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:380d5a23-e944-482c-b22d-e6a21b6dfff4
Source identifiers:
405394
Local pid:
pubs:405394
Language:
English

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