Evidence for exciton quenching by hole polarons in thick P3HT: PCBM solar cells

D. Gupta, T.G.J. van der Hofstad, R.A.J. Janssen, S.C.J. Meskers

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Loss mechanisms near each of the two electrodes of semitransparent solar cells with ZnO and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) contacts are investigated as function of the thickness of the photoactive poly(3-hexylthiophene) : methanofullerene (P3HT:PCBM) bulk heterojunction layer (200-500 nm). Varying the intensity of the illumination through the ZnO contact indicates that bimolecular recombination is an important loss mechanism. Illumination through the PEDOT:PSS contact reveals a loss mechanism that is independent of light intensity. Photoluminescence measurements demonstrate that primary P3HT excitons can be quenched by charge carriers that diffuse into the active layer from the PEDOT:PSS contact.

Originele taal-2Engels
Titel2016 3rd International Conference on Emerging Electronics, ICEE 2016
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
ISBN van elektronische versie978-1-5090-3659-2
DOI's
StatusGepubliceerd - 18 okt 2017
Evenement3rd International Conference on Emerging Electronics (ICEE 2016) - Indian Institute of Technology, Mumbai, India
Duur: 27 dec 201630 dec 2016
Congresnummer: 3

Congres

Congres3rd International Conference on Emerging Electronics (ICEE 2016)
Verkorte titelICEE
LandIndia
StadMumbai
Periode27/12/1630/12/16

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Gupta, D., van der Hofstad, T. G. J., Janssen, R. A. J., & Meskers, S. C. J. (2017). Evidence for exciton quenching by hole polarons in thick P3HT: PCBM solar cells. In 2016 3rd International Conference on Emerging Electronics, ICEE 2016 [8074601] Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICEmElec.2016.8074601