Connecting scanning tunneling spectroscopy to device performance for polymer:fullerene organic solar cells
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 o...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
February 25, 2010
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| In: |
ACS nano
Year: 2010, Volume: 4, Issue: 3, Pages: 1385-1392 |
| ISSN: | 1936-086X |
| DOI: | 10.1021/nn100039r |
| Online Access: | Verlag, Volltext: https://doi.org/10.1021/nn100039r
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| Author Notes: | Klára Maturová, René A.J. Janssen, and Martijn Kemerink |
| Summary: | 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. |
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| Item Description: | Gesehen am 17.12.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1936-086X |
| DOI: | 10.1021/nn100039r |