Tracing charge transfer states in polymer:fullerene bulk-heterojunctions.

Marianna Manca; Claudia Piliego; Ergang Wang; Mats R. Andersson; Andrea Mura; Maria Loi

doi:10.1039/c3ta11005b

Tracing charge transfer states in polymer:fullerene bulk-heterojunctions.

Marianna Manca, Claudia Piliego, Ergang Wang, Mats R. Andersson, Andrea Mura, Maria Loi

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Charge transfer state emission in organic bulk-heterojunctions has been demonstrated to be an important loss mechanism for this reason a better understanding of the nature and origin of the charge transfer state is fundamental for the improvement of organic solar cells. Here, the relationship between photophysical and morphological features of a prototypical organic bulk-heterojunction is investigated in blends with different donor-acceptor ratios. By correlating imaging with photoluminescence spectra measured in different areas of the blends, the charge transfer state emission is unambiguously assigned to microscopical regions in which the intermixing of the two organic semiconductors is higher.

Original language	English
Pages (from-to)	7321-7325
Number of pages	5
Journal	Journal of Materials Chemistry A
Volume	1
Issue number	25
DOIs	https://doi.org/10.1039/c3ta11005b
Publication status	Published - 7 Jul 2013

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10.1039/c3ta11005b

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abstract = "Charge transfer state emission in organic bulk-heterojunctions has been demonstrated to be an important loss mechanism for this reason a better understanding of the nature and origin of the charge transfer state is fundamental for the improvement of organic solar cells. Here, the relationship between photophysical and morphological features of a prototypical organic bulk-heterojunction is investigated in blends with different donor-acceptor ratios. By correlating imaging with photoluminescence spectra measured in different areas of the blends, the charge transfer state emission is unambiguously assigned to microscopical regions in which the intermixing of the two organic semiconductors is higher.",

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AU - Andersson, Mats R.

AU - Mura, Andrea

AU - Loi, Maria

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AB - Charge transfer state emission in organic bulk-heterojunctions has been demonstrated to be an important loss mechanism for this reason a better understanding of the nature and origin of the charge transfer state is fundamental for the improvement of organic solar cells. Here, the relationship between photophysical and morphological features of a prototypical organic bulk-heterojunction is investigated in blends with different donor-acceptor ratios. By correlating imaging with photoluminescence spectra measured in different areas of the blends, the charge transfer state emission is unambiguously assigned to microscopical regions in which the intermixing of the two organic semiconductors is higher.

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JF - Journal of Materials Chemistry A

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ER -

Tracing charge transfer states in polymer:fullerene bulk-heterojunctions.

Abstract

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