Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 4, Issue 43, Pages 10367-10370Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc03344j
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Funding
- Energy Frontier Research Center (EFRC) - U.S. Department of Energy, Office of Science, Basic Energy Sciences [DE-SC0001087]
- Polymer-Based Materials for Harvesting Solar Energy (PHaSE)
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The field of organic photovoltaics (OPVs) has long focused on matching silicon solar cells, both in high power conversion efficiency (PCE) under solar light and broad absorption of the solar spectrum. We show that OPV devices, which have significantly lower PCEs than high-performing crystalline silicon cells when measured under the typical AM 1.5G solar standard, can surpass silicon cells with PCEs >20% measured under LED light. We highlight that the conflation of the terms solar cell'' and photovoltaic'' gives an incomplete view of the potential of many photovoltaic materials, especially organic materials. By expanding the definition and assessment of photovoltaic devices to include multiple light sources, OPVs-with their higher PCEs under indoor light and qualitative benefits of being lightweight, thin, flexible, and semi-transparent-could have a home in previously unconsidered low-power indoor applications.
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