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Title: Panchromatic polymer-polymer ternary solar cells enhanced by Forster resonance energy transfer and solvent vapor annealing

Abstract

Thanks to the bulk-heterojunction (BHJ) feature of polymer solar cells (PSC), additional light active components can be added with ease to form ternary solar cells. This strategy has achieved great success largely due to expanded spectral response range and improved power conversion efficiency (PCE) without incurring excessive processing costs. Here, we report ternary blend polymer–polymer solar cells comprised of PTB7, P3HT, and PC71BM with PCE as high as 8.2%. Analyses of femtosecond time resolved photoluminescence and transient absorption spectroscopy data confirm that P3HT is effective in transferring energy non-radiatively by inducing excitons and prolonging their overall lifetime in PTB7. As a result, solvent vapor annealing (SVA) treatment was employed to rectify the overly-coarse morphology, thus enhancing the fill factor, reducing interfacial recombination, and boosting the PCE to 8.7%.

Authors:
 [1];  [2];  [3];  [1];  [1];  [1];  [1]
  1. Yale Univ., New Haven, CT (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Yale Univ., New Haven, CT (United States); California Institute of Technology, Pasadena, CA (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1226069
Report Number(s):
BNL-108547-2015-JA
Journal ID: ISSN 2050-7488; JMCAET; R&D Project: 16063; KC0403020
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Materials Chemistry. A
Additional Journal Information:
Journal Volume: 3; Journal Issue: 36; Journal ID: ISSN 2050-7488
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; P3HT; PTB7; ternary solar cells; energy transfer; solvent annealing; bulk-heterojunction; polymer photovolatics; Center for Functional Nanomaterials

Citation Formats

Goh, Tenghooi, Sfeir, Matthew Y., Huang, Jing -Shun, Bartolome, Benjamin, Vaisman, Michelle, Lee, Minjoo L., and Taylor, Andre D. Panchromatic polymer-polymer ternary solar cells enhanced by Forster resonance energy transfer and solvent vapor annealing. United States: N. p., 2015. Web. doi:10.1039/c5ta04905a.
Goh, Tenghooi, Sfeir, Matthew Y., Huang, Jing -Shun, Bartolome, Benjamin, Vaisman, Michelle, Lee, Minjoo L., & Taylor, Andre D. Panchromatic polymer-polymer ternary solar cells enhanced by Forster resonance energy transfer and solvent vapor annealing. United States. doi:10.1039/c5ta04905a.
Goh, Tenghooi, Sfeir, Matthew Y., Huang, Jing -Shun, Bartolome, Benjamin, Vaisman, Michelle, Lee, Minjoo L., and Taylor, Andre D. Tue . "Panchromatic polymer-polymer ternary solar cells enhanced by Forster resonance energy transfer and solvent vapor annealing". United States. doi:10.1039/c5ta04905a. https://www.osti.gov/servlets/purl/1226069.
@article{osti_1226069,
title = {Panchromatic polymer-polymer ternary solar cells enhanced by Forster resonance energy transfer and solvent vapor annealing},
author = {Goh, Tenghooi and Sfeir, Matthew Y. and Huang, Jing -Shun and Bartolome, Benjamin and Vaisman, Michelle and Lee, Minjoo L. and Taylor, Andre D.},
abstractNote = {Thanks to the bulk-heterojunction (BHJ) feature of polymer solar cells (PSC), additional light active components can be added with ease to form ternary solar cells. This strategy has achieved great success largely due to expanded spectral response range and improved power conversion efficiency (PCE) without incurring excessive processing costs. Here, we report ternary blend polymer–polymer solar cells comprised of PTB7, P3HT, and PC71BM with PCE as high as 8.2%. Analyses of femtosecond time resolved photoluminescence and transient absorption spectroscopy data confirm that P3HT is effective in transferring energy non-radiatively by inducing excitons and prolonging their overall lifetime in PTB7. As a result, solvent vapor annealing (SVA) treatment was employed to rectify the overly-coarse morphology, thus enhancing the fill factor, reducing interfacial recombination, and boosting the PCE to 8.7%.},
doi = {10.1039/c5ta04905a},
journal = {Journal of Materials Chemistry. A},
number = 36,
volume = 3,
place = {United States},
year = {2015},
month = {8}
}

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Cited by: 20 works
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