Color-neutral, semitransparent organic photovoltaics for power window applications
Abstract
Semitransparent organic photovoltaic cells (ST-OPVs) are emerging as a solution for solar energy harvesting on building facades, rooftops, and windows. However, the trade-off between power-conversion efficiency (PCE) and the average photopic transmission (APT) in color-neutral devices limits their utility as attractive, power-generating windows. A color-neutral ST-OPV is demonstrated by using a transparent indium tin oxide (ITO) anode along with a narrow energy gap nonfullerene acceptor near-infrared (NIR) absorbing cell and outcoupling (OC) coatings on the exit surface. The device exhibits PCE = 8.1 ± 0.3% and APT = 43.3 ± 1.2% that combine to achieve a light-utilization efficiency of LUE = 3.5 ± 0.1%. Commission Internationale d’eclairage chromaticity coordinates of (0.38, 0.39), a color-rendering index of 86, and a correlated color temperature of 4,143 K are obtained for simulated AM1.5 illumination transmitted through the cell. Using an ultrathin metal anode in place of ITO, we demonstrate a slightly green-tinted ST-OPV with PCE = 10.8 ± 0.5% and APT = 45.7 ± 2.1% yielding LUE = 5.0 ± 0.3% Furthermore, these results indicate that ST-OPVs can combine both efficiency and color neutrality in a single device.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); Jiangsu Provincial Natural Science Foundation
- OSTI Identifier:
- 1647873
- Alternate Identifier(s):
- OSTI ID: 1673042
- Grant/Contract Number:
- EE0008561; AC02-05CH11231; 51773142; 51973146; BK20190099
- Resource Type:
- Published Article
- Journal Name:
- Proceedings of the National Academy of Sciences of the United States of America
- Additional Journal Information:
- Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 117 Journal Issue: 35; Journal ID: ISSN 0027-8424
- Publisher:
- National Academy of Sciences
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; Organic solar cells; semitransparent device; efficiency; non-fullerene acceptor; building integrated photovoltaics
Citation Formats
Li, Yongxi, Guo, Xia, Peng, Zhengxing, Qu, Boning, Yan, Hongping, Ade, Harald, Zhang, Maojie, and Forrest, Stephen R. Color-neutral, semitransparent organic photovoltaics for power window applications. United States: N. p., 2020.
Web. doi:10.1073/pnas.2007799117.
Li, Yongxi, Guo, Xia, Peng, Zhengxing, Qu, Boning, Yan, Hongping, Ade, Harald, Zhang, Maojie, & Forrest, Stephen R. Color-neutral, semitransparent organic photovoltaics for power window applications. United States. https://doi.org/10.1073/pnas.2007799117
Li, Yongxi, Guo, Xia, Peng, Zhengxing, Qu, Boning, Yan, Hongping, Ade, Harald, Zhang, Maojie, and Forrest, Stephen R. Mon .
"Color-neutral, semitransparent organic photovoltaics for power window applications". United States. https://doi.org/10.1073/pnas.2007799117.
@article{osti_1647873,
title = {Color-neutral, semitransparent organic photovoltaics for power window applications},
author = {Li, Yongxi and Guo, Xia and Peng, Zhengxing and Qu, Boning and Yan, Hongping and Ade, Harald and Zhang, Maojie and Forrest, Stephen R.},
abstractNote = {Semitransparent organic photovoltaic cells (ST-OPVs) are emerging as a solution for solar energy harvesting on building facades, rooftops, and windows. However, the trade-off between power-conversion efficiency (PCE) and the average photopic transmission (APT) in color-neutral devices limits their utility as attractive, power-generating windows. A color-neutral ST-OPV is demonstrated by using a transparent indium tin oxide (ITO) anode along with a narrow energy gap nonfullerene acceptor near-infrared (NIR) absorbing cell and outcoupling (OC) coatings on the exit surface. The device exhibits PCE = 8.1 ± 0.3% and APT = 43.3 ± 1.2% that combine to achieve a light-utilization efficiency of LUE = 3.5 ± 0.1%. Commission Internationale d’eclairage chromaticity coordinates of (0.38, 0.39), a color-rendering index of 86, and a correlated color temperature of 4,143 K are obtained for simulated AM1.5 illumination transmitted through the cell. Using an ultrathin metal anode in place of ITO, we demonstrate a slightly green-tinted ST-OPV with PCE = 10.8 ± 0.5% and APT = 45.7 ± 2.1% yielding LUE = 5.0 ± 0.3% Furthermore, these results indicate that ST-OPVs can combine both efficiency and color neutrality in a single device.},
doi = {10.1073/pnas.2007799117},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 35,
volume = 117,
place = {United States},
year = {Mon Aug 17 00:00:00 EDT 2020},
month = {Mon Aug 17 00:00:00 EDT 2020}
}
https://doi.org/10.1073/pnas.2007799117
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