Cited by 46Organic Electronics and PhotovoltaicsBlock Copolymer Self-AssemblyOrganic Light-Emitting Diodes Research

The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.

Role of Solvent Trapping Effects in Determining the Structure and Morphology of Ternary Blend Organic Devices

Abstract

We present results of scanning transmission X-ray microscopy (STXM) measurements of bulk heterojunction organic solar cells built from a ternary blend of poly(3-hexylthiophene) (P3HT), [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), and [2,3,12,13-tetracyano-5,10,15,20-tetrakis(3,5-di- tert -butylphenyl)porphyrinato]copper(II) (Cu(CN) 4 P) porphyrin. These results show evidence of solvent trapping due to porphyrin in the film. Upon annealing, submicrometer depressions are observed in the ternary blend films, corresponding to the evolution of solvent that is associated with the small porphyrin aggregates that phase segregate in the middle of the depressions. The areal density and size of the depressions change systematically with porphyrin concentration in the ternary blend. The relationship of the observed morphologies to the previously measured device performance is discussed.

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Crossref · 10.1021/ma802632y

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  • Porphyrin broadened the absorption range, contributed to the photocurrent generation and initiated primary charge separation.

    “The results indicate that porphyrin broadened the absorption range, contributed to the photocurrent generation and initiated primary charge separation.”

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Metadata

Authors
Burke, K. B., Belcher, W. J., Thomsen, L., Watts, B., McNeill, C. R., Ade, H., & Dastoor, P. C.
Affiliations
Commonwealth Scientific and Industrial Research Organisation (AU)
Corresponding author
  • Watts, Benjamin
  • Dastoor, Paul C.
Venue
Macromolecules
Published
2009-03-30
Volume
42
Issue
8
Pages
3098-3103
ISSN
  • 0024-9297 (ISSN-L)
  • 1520-5835
OpenAlex
W2013229756
Cited by
44
References
32
Citations by year
2023: 2 · 2020: 1 · 2018: 3 · 2017: 2 · 2016: 2 · 2015: 6 · 2014: 4 · 2013: 4 · 2012: 2
FWCI
5.29
Type
journal article
Language
en
Open access
closed
Locations
Macromolecules (publishedVersion)
Funders
Engineering and Physical Sciences Research Council (EP/E051804/1)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
  • Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
Keywords
solvent trapping, ternary mixtures, organic solar cells, bulk heterojunction, poly(3-hexylthiophene), PCBM, copper porphyrin, porphyrin aggregates, phase segregation, film morphology, annealing, areal density, device performance

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