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Title:
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Hybrid ZnO: polymer bulk heterojunction solar cells from a ZnO precursor
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Author(s):
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Published by:
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Publication date:
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ECN
Solar Energy
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1-11-2005
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ECN report number:
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Document type:
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ECN-RX--05-066
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Conference Paper
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Number of pages:
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Full text:
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11
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Download PDF
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Presented at: SPIE Conference; Optics & Phonotonics, San Diego, USA, 31 juli 2005-4 augustus 2005.
Abstract:
We descdbe a simple and new method to create hybrid bulk heterojunction
solar cells consisting of ZnO and conjugated polymers. A gel-forming
ZnO precursor, blended with conjugated polymers, is converted into crystalline
ZnO at temperatures as low as 110 °C. In-situ formation of ZnO in MDMO-PPV
leads to a quenching of the polymer photoluminescence. Positive charges
on MDMO-PPV are formed after pholoexcitation, indicating electron transfer
from the polymer to ZnO. Results without full optimization already give
photovoltaic cclls with an estimated performance over 1% under AM1.5
illumination. The large effect of the processing conditions onthe
pholovoltaic effect of the s
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