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Hybrid ZnO: polymer bulk heterojunction solar cells from a ZnO precursor
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 1-11-2005
ECN publicatienummer: Publicatie type:
ECN-RX--05-066 Conferentiebijdrage
Aantal pagina's: Volledige tekst:
11  Niet beschikbaar.

Gepresenteerd op: SPIE Conference; Optics & Phonotonics, San Diego, USA, 31 juli 2005-4 augustus 2005.


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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