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Title: Final Scientific/Technical Report -- Single-Junction Organic Solar Cells with >15% Efficiency

Abstract

Organic solar cells have the potential to offer low-cost solar energy conversion due to low material costs and compatibility with low-temperature and high throughput manufacturing processes. This project aims to further improve the efficiency of organic solar cells by applying a previously demonstrated molecular self-assembly approach to longer-wavelength light-absorbing organic materials. The team at the University of Florida designed and synthesized a series of low-bandgap organic semiconductors with functional hydrogen-bonding groups, studied their assembly characteristics and optoelectronic properties in solid-state thin film, and fabricated organic solar cells using solution processing. These new organic materials absorb light up 800 nm wavelength, and provide a maximum open-circuit voltage of 1.05 V in the resulted solar cells. The results further confirmed the effectiveness in this approach to guide the assembly of organic semiconductors in thin films to yield higher photovoltaic performance for solar energy conversion. Through this project, we have gained important understanding on designing, synthesizing, and processing organic semiconductors that contain appropriately functionalized groups to control the morphology of the organic photoactive layer in solar cells. Such fundamental knowledge could be used to further develop new functional organic materials to achieve higher photovoltaic performance, and contribute to the eventual commercialization of themore » organic solar cell technology.« less

Authors:
 [1];  [2];  [2];  [2];  [1];  [2];  [1];  [2];  [2];  [1]
  1. Univ. of Florida, Gainesville, FL (United States). Dept. of Materials Science and Engineering
  2. Univ. of Florida, Gainesville, FL (United States). Dept. of Chemistry
Publication Date:
Research Org.:
Univ. of Florida, Gainesville, FL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1435607
Report Number(s):
DOE-UF-7362
DOE Contract Number:  
EE0007362
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; organic solar cells; bulk heterojunction; hydrogen bonding; organic semiconductors; self-assembly

Citation Formats

Starkenburg, Daken, Weldeab, Asmerom, Fagnani, Danielle, Li, Lei, Xu, Zhengtao, Yan, Xiaoyang, Sexton, Michael, Watkins, Davita, Castellano, Ronald, and Xue, Jiangeng. Final Scientific/Technical Report -- Single-Junction Organic Solar Cells with >15% Efficiency. United States: N. p., 2018. Web. doi:10.2172/1435607.
Starkenburg, Daken, Weldeab, Asmerom, Fagnani, Danielle, Li, Lei, Xu, Zhengtao, Yan, Xiaoyang, Sexton, Michael, Watkins, Davita, Castellano, Ronald, & Xue, Jiangeng. Final Scientific/Technical Report -- Single-Junction Organic Solar Cells with >15% Efficiency. United States. doi:10.2172/1435607.
Starkenburg, Daken, Weldeab, Asmerom, Fagnani, Danielle, Li, Lei, Xu, Zhengtao, Yan, Xiaoyang, Sexton, Michael, Watkins, Davita, Castellano, Ronald, and Xue, Jiangeng. Wed . "Final Scientific/Technical Report -- Single-Junction Organic Solar Cells with >15% Efficiency". United States. doi:10.2172/1435607. https://www.osti.gov/servlets/purl/1435607.
@article{osti_1435607,
title = {Final Scientific/Technical Report -- Single-Junction Organic Solar Cells with >15% Efficiency},
author = {Starkenburg, Daken and Weldeab, Asmerom and Fagnani, Danielle and Li, Lei and Xu, Zhengtao and Yan, Xiaoyang and Sexton, Michael and Watkins, Davita and Castellano, Ronald and Xue, Jiangeng},
abstractNote = {Organic solar cells have the potential to offer low-cost solar energy conversion due to low material costs and compatibility with low-temperature and high throughput manufacturing processes. This project aims to further improve the efficiency of organic solar cells by applying a previously demonstrated molecular self-assembly approach to longer-wavelength light-absorbing organic materials. The team at the University of Florida designed and synthesized a series of low-bandgap organic semiconductors with functional hydrogen-bonding groups, studied their assembly characteristics and optoelectronic properties in solid-state thin film, and fabricated organic solar cells using solution processing. These new organic materials absorb light up 800 nm wavelength, and provide a maximum open-circuit voltage of 1.05 V in the resulted solar cells. The results further confirmed the effectiveness in this approach to guide the assembly of organic semiconductors in thin films to yield higher photovoltaic performance for solar energy conversion. Through this project, we have gained important understanding on designing, synthesizing, and processing organic semiconductors that contain appropriately functionalized groups to control the morphology of the organic photoactive layer in solar cells. Such fundamental knowledge could be used to further develop new functional organic materials to achieve higher photovoltaic performance, and contribute to the eventual commercialization of the organic solar cell technology.},
doi = {10.2172/1435607},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {5}
}