Connecting Scanning Tunneling Spectroscopy to Device Performance for Polymer:Fullerene Organic Solar Cells

K. Maturova, R.A.J. Janssen, M. Kemerink

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelpeer review

19 Citaten (Scopus)

Samenvatting

Scanning tunneling microscopy and spectroscopy have been used to measure the local photovoltaic performance of prototypical polymer:fullerene (MDMO-PPV:PCBM) bulk heterojunction films with 10 nm resolution. Fullerene-rich clusters are found to act as sinks, extracting electrons from a shell layer of a homogeneously mixed polymer:fullerene matrix, surrounding the fullerene cluster. The experimental results were quantitatively modeled with a drift-diffusion model that in first order accounts for the specific morphology. The same model has subsequently been used to calculate performance indicators of macroscopic solar cells as a function of film composition and characteristic size of the phase separation. As such, a first step has been set toward a quantitative correlation between nanoscopic and macroscopic device photovoltaic performance.
Originele taal-2Engels
Pagina's (van-tot)1385-1392
Aantal pagina's7
TijdschriftACS Nano
Volume4
Nummer van het tijdschrift3
DOI's
StatusGepubliceerd - 2010

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