Cited by 246Organic Electronics and PhotovoltaicsFullerene Chemistry and ApplicationsPhotochemistry and Electron Transfer Studies

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Entropy of Charge Separation in Organic Photovoltaic Cells: The Benefit of Higher Dimensionality

Gregg, Brian A.·2011·The Journal of Physical Chemistry Letters

Abstract

The role of entropy in charge separation processes is discussed with respect to the dimensionality of the organic semiconductor. In 1-D materials, the change in entropy, Δ S, plays no role, but at higher dimensions, it leads to a substantial decrease in the Coulomb barrier for charge separation. The effects of Δ S are highest in equilibrium systems but decrease and become time-dependent in illuminated organic photovoltaic (OPV) cells. Higher-dimensional semiconductors have inherent advantages for charge separation, and this may be one reason that C 60 and its derivatives, the only truly three-dimensional organic semiconductors yet known, play such an important role in OPV cells.

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Crossref · 10.1021/jz2012403

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8 of 8 references verified0 citation errors · 0 not checkable

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  • Some materials with 3D architectures showed better performance than their planar counterparts due to multi-directional charge-transport.

    “It is generally accepted that some materials with 3D architectures showed better performance than their planar counterparts 122 due to the multi-directional charge-transport,”

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Metadata

Authors
Gregg, B. A.
Affiliations
National Laboratory of the Rockies (US)
Corresponding author
Gregg, Brian A.
Venue
The Journal of Physical Chemistry Letters
Published
2011-11-18
Volume
2
Issue
24
Pages
3013-3015
ISSN
1948-7185 (ISSN-L)
OpenAlex
W2323662954
Cited by
245
References
8
Citations by year
2026: 2 · 2025: 4 · 2024: 11 · 2023: 12 · 2022: 10 · 2021: 18 · 2020: 20 · 2019: 21 · 2018: 31 · 2017: 23 · 2016: 28 · 2015: 28 · 2014: 18 · 2013: 12 · 2012: 6
FWCI
8.29
Type
journal article
Language
en
Open access
closed
Locations
The Journal of Physical Chemistry Letters (publishedVersion)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
  • Physical Sciences › Chemistry › Organic Chemistry › Fullerene Chemistry and Applications
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
Keywords
entropy, charge separation, organic solar cells, organic semiconductors, dimensionality, Coulomb barrier, C60, excited-state dynamics

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