Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing

Yiwei Zhang; Muhammad T. Sajjad; Oskar Blaszczyk; Arvydas Ruseckas; Luis A. Serrano; Graeme Cooke; Ifor D.W. Samuel

doi:10.1016/j.orgel.2019.03.014

Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing

Yiwei Zhang
, Muhammad T. Sajjad
, Oskar Blaszczyk
, Arvydas Ruseckas
, Luis A. Serrano
, Graeme Cooke
, Ifor D.W. Samuel

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

Abstract

The singlet exciton diffusion length was measured in a small molecule electron donor material DR3TBDTT using fluorescence quenching at a planar interface with a cross-linked fullerene derivative. The one-dimensional exciton diffusion length was increased from ~16 to ~24 nm by annealing the film in carbon disulfide solvent vapor. Planar heterojunction solar cells were fabricated using bilayers of these materials and it was found that solvent vapor annealing increased the short circuit current density by 46%. This can be explained by improved exciton harvesting in the annealed bilayer.

Original language	English
Journal	Organic Electronics
Volume	70
Early online date	13 Mar 2019
DOIs	https://doi.org/10.1016/j.orgel.2019.03.014
Publication status	Published - Jul 2019

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Organic solar cells
Exciton diffusion length
Photoluminescence quenching
Bilayer

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10.1016/j.orgel.2019.03.014

Zhang_2019_OE_Excitonharvesting_AAM
Copyright © 2019 Published by Elsevier B.V. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.orgel.2019.03.014
Accepted author manuscript, 2.23 MBLicence: CC BY-NC-ND

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ERC Advanced Grant EXCITON: EU FP7 ERC Advanced Grant 2012 EXCITON
Samuel, I. (PI)
European Research Council
1/04/13 → 30/03/19
Project: Standard

Enhanced Exciton Harvesting in a Planar Heterojunction Organic Photovoltaic Device by Solvent Vapor Annealing (dataset)
Zhang, Y. (Creator), Sajjad, M. T. (Creator), Blaszczyk, O. (Creator), Ruseckas, A. (Creator), Serrano, L. A. (Creator), Cooke, G. (Creator) & Samuel, I. D. W. (Creator), University of St Andrews, 20 Mar 2019
DOI: 10.17630/0e75f92d-6f8a-41be-ad45-ac6d1d890ee2
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Cite this

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title = "Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing",

abstract = "The singlet exciton diffusion length was measured in a small molecule electron donor material DR3TBDTT using fluorescence quenching at a planar interface with a cross-linked fullerene derivative. The one-dimensional exciton diffusion length was increased from \textasciitilde{}16 to \textasciitilde{}24 nm by annealing the film in carbon disulfide solvent vapor. Planar heterojunction solar cells were fabricated using bilayers of these materials and it was found that solvent vapor annealing increased the short circuit current density by 46\%. This can be explained by improved exciton harvesting in the annealed bilayer.",

keywords = "Organic solar cells, Exciton diffusion length, Photoluminescence quenching, Bilayer",

author = "Yiwei Zhang and Sajjad, \{Muhammad T.\} and Oskar Blaszczyk and Arvydas Ruseckas and Serrano, \{Luis A.\} and Graeme Cooke and Samuel, \{Ifor D.W.\}",

note = "We thank the European Research Council (ERC) for financial support (EXCITON grant 321305). Data supporting this study is available at https://doi.org/10.17630/0e75f92d-6f8a-41be-ad45-ac6d1d890ee2.",

year = "2019",

month = jul,

doi = "10.1016/j.orgel.2019.03.014",

language = "English",

volume = "70",

journal = "Organic Electronics",

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publisher = "Elsevier",

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T1 - Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing

AU - Zhang, Yiwei

AU - Sajjad, Muhammad T.

AU - Blaszczyk, Oskar

AU - Ruseckas, Arvydas

AU - Serrano, Luis A.

AU - Cooke, Graeme

AU - Samuel, Ifor D.W.

N1 - We thank the European Research Council (ERC) for financial support (EXCITON grant 321305). Data supporting this study is available at https://doi.org/10.17630/0e75f92d-6f8a-41be-ad45-ac6d1d890ee2.

PY - 2019/7

Y1 - 2019/7

N2 - The singlet exciton diffusion length was measured in a small molecule electron donor material DR3TBDTT using fluorescence quenching at a planar interface with a cross-linked fullerene derivative. The one-dimensional exciton diffusion length was increased from ~16 to ~24 nm by annealing the film in carbon disulfide solvent vapor. Planar heterojunction solar cells were fabricated using bilayers of these materials and it was found that solvent vapor annealing increased the short circuit current density by 46%. This can be explained by improved exciton harvesting in the annealed bilayer.

AB - The singlet exciton diffusion length was measured in a small molecule electron donor material DR3TBDTT using fluorescence quenching at a planar interface with a cross-linked fullerene derivative. The one-dimensional exciton diffusion length was increased from ~16 to ~24 nm by annealing the film in carbon disulfide solvent vapor. Planar heterojunction solar cells were fabricated using bilayers of these materials and it was found that solvent vapor annealing increased the short circuit current density by 46%. This can be explained by improved exciton harvesting in the annealed bilayer.

KW - Organic solar cells

KW - Exciton diffusion length

KW - Photoluminescence quenching

KW - Bilayer

U2 - 10.1016/j.orgel.2019.03.014

DO - 10.1016/j.orgel.2019.03.014

M3 - Article

SN - 1566-1199

VL - 70

JO - Organic Electronics

JF - Organic Electronics

ER -

Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing

Abstract

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Projects

ERC Advanced Grant EXCITON: EU FP7 ERC Advanced Grant 2012 EXCITON

Datasets

Enhanced Exciton Harvesting in a Planar Heterojunction Organic Photovoltaic Device by Solvent Vapor Annealing (dataset)

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