The Impact of Local Morphology on Organic Donor/Acceptor Charge Transfer States
Abstract
A major breakthrough in the field of organic photovoltaics (OPVs) was the development of the donor/acceptor heterojunction that aids in separating Coulombically bound excitons that are generated upon photoabsorption. Additionally, bound charge transfer (CT) states that result from the exchange of charge carriers across the donor/acceptor interface are believed to play an important role in charge generation. Though organic thin films are often disordered, enhancements to the local structural order at the donor/acceptor interface have recently been shown to greatly influence CT state energetics and the charge generation process. In this progress report, recent efforts to understand the role that donor/acceptor morphology plays in the behavior of CT states and the resulting implications on OPV function are presented. Furthermore, it is aimed to provide a survey of different experimental approaches and to present a balanced examination of current interpretations of key results, and to offer best practices for the fabrication and study of morphologically tunable donor/acceptor CT states.
- Publication Date:
- Research Org.:
- Princeton Univ., NJ (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1595409
- Alternate Identifier(s):
- OSTI ID: 1417213
- Grant/Contract Number:
- SC0012458; CBET‐1604524
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Energy Materials
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 28; Journal ID: ISSN 1614-6832
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; charge generation; interfaces; morphology; organic photovoltaics; organic solar cells
Citation Formats
Lin, YunHui L., Fusella, Michael A., and Rand, Barry P. The Impact of Local Morphology on Organic Donor/Acceptor Charge Transfer States. United States: N. p., 2018.
Web. doi:10.1002/aenm.201702816.
Lin, YunHui L., Fusella, Michael A., & Rand, Barry P. The Impact of Local Morphology on Organic Donor/Acceptor Charge Transfer States. United States. https://doi.org/10.1002/aenm.201702816
Lin, YunHui L., Fusella, Michael A., and Rand, Barry P. Wed .
"The Impact of Local Morphology on Organic Donor/Acceptor Charge Transfer States". United States. https://doi.org/10.1002/aenm.201702816. https://www.osti.gov/servlets/purl/1595409.
@article{osti_1595409,
title = {The Impact of Local Morphology on Organic Donor/Acceptor Charge Transfer States},
author = {Lin, YunHui L. and Fusella, Michael A. and Rand, Barry P.},
abstractNote = {A major breakthrough in the field of organic photovoltaics (OPVs) was the development of the donor/acceptor heterojunction that aids in separating Coulombically bound excitons that are generated upon photoabsorption. Additionally, bound charge transfer (CT) states that result from the exchange of charge carriers across the donor/acceptor interface are believed to play an important role in charge generation. Though organic thin films are often disordered, enhancements to the local structural order at the donor/acceptor interface have recently been shown to greatly influence CT state energetics and the charge generation process. In this progress report, recent efforts to understand the role that donor/acceptor morphology plays in the behavior of CT states and the resulting implications on OPV function are presented. Furthermore, it is aimed to provide a survey of different experimental approaches and to present a balanced examination of current interpretations of key results, and to offer best practices for the fabrication and study of morphologically tunable donor/acceptor CT states.},
doi = {10.1002/aenm.201702816},
journal = {Advanced Energy Materials},
number = 28,
volume = 8,
place = {United States},
year = {Wed Jan 17 00:00:00 EST 2018},
month = {Wed Jan 17 00:00:00 EST 2018}
}
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- Willems, Robin E. M.; Meskers, Stefan C. J.; Wienk, Martijn M.
- The Journal of Physical Chemistry C, Vol. 123, Issue 16
Assessing the nature of the charge-transfer electronic states in organic solar cells
journal, December 2018
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- Nature Communications, Vol. 9, Issue 1