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Titel:
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Hybrid ZnO: polymer bulk heterojunction solar cells from a ZnO precursor
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Auteur(s):
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Gepubliceerd door:
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Publicatie datum:
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ECN
Zonne-energie
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1-11-2005
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ECN publicatienummer:
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Publicatie type:
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ECN-RX--05-066
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Conferentiebijdrage
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Aantal pagina's:
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Volledige tekst:
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11
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Niet beschikbaar.
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Gepresenteerd op: SPIE Conference; Optics & Phonotonics, San Diego, USA, 31 juli 2005-4 augustus 2005.
Samenvatting:
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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