Hybrid ZnO:polymer bulk heterojunction solar cells from a ZnO precursor

Waldo J. E. Beek; Lenneke H. Slooff; Martijn M. Wienk; Jan M. Kroon; René A. J. Janssen

doi:10.1117/12.614891

3 October 2005 Hybrid ZnO:polymer bulk heterojunction solar cells from a ZnO precursor

Waldo J. E. Beek, Lenneke H. Slooff, Martijn M. Wienk, Jan M. Kroon, René A. J. Janssen

Proceedings Volume 5938, Organic Photovoltaics VI; 59380L (2005) https://doi.org/10.1117/12.614891
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We describe 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 the MDMO-PPV are formed after photoexcitation, indicating electron transfer from the polymer to ZnO. Results without full optimization already give photovoltaic cells with an estimated performance over 1% under AM1.5 illumination. The large effect of the processing conditions on the photovoltaic effect of the solar cells, indicate that there are several parameters that require control. The choice of solvent, type of atmosphere, and the relative humidity during spin coating, are important for optimization of the photovoltaic effect. These solar cells are made from cheap materials, and via simple processing and can be regarded as promising for further research.

Citation Download Citation

Waldo J. E. Beek, Lenneke H. Slooff, Martijn M. Wienk, Jan M. Kroon, and René A. J. Janssen "Hybrid ZnO:polymer bulk heterojunction solar cells from a ZnO precursor", Proc. SPIE 5938, Organic Photovoltaics VI, 59380L (3 October 2005); https://doi.org/10.1117/12.614891

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