Device engineering of organic solar cells based on a boron subphthalocyanine electron donor molecule

Mehrad Ahmadpour; Michela Prete; Um Kanta Aryal; Anne Ugleholdt Petersen; Mariam Ahmad; Horst-Gunter Rubahn; Malte F. Jespersen; Kurt Mikkelsen V; Vida Engmann; Mogens Brøndsted Nielsen; Morten Madsen

doi:10.1088/2515-7639/acada2

Device engineering of organic solar cells based on a boron subphthalocyanine electron donor molecule

Mehrad Ahmadpour, Michela Prete, Um Kanta Aryal, Anne Ugleholdt Petersen, Mariam Ahmad, Horst-Gunter Rubahn, Malte F. Jespersen, Kurt Mikkelsen V, Vida Engmann^*, Mogens Brøndsted Nielsen, Morten Madsen

^*Corresponding author for this work

University of Copenhagen

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

A boron subphthalocyanine molecule has been employed as a novel electron donor in organic solar cells (OPVs), and optimized in terms of composition and device structure in small molecule solar cells. It is demonstrated that the power conversion efficiency (PCE) of the devices obtained by solution-processing in bulk heterojunction solar cells could be improved by one order of magnitude by changing the fabrication method to vacuum deposition, which promotes a better morphology in the OPV active layers. Importantly, upon insertion of an additional pristine C ₇₀ thin interlayer between the active layer and the hole transport layer the PCE was further improved, highlighting the importance of interfacial layer engineering in such subphthalocyanine small molecule OPVs.

Original language	English
Article number	014008
Journal	Journal of Physics: Materials
Volume	6
Issue number	1
Number of pages	8
ISSN	2515-7639
DOIs	https://doi.org/10.1088/2515-7639/acada2
Publication status	Published - 1. Jan 2023

Keywords

interlayer
organic solar cells
small molecule
vacuum-deposition

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Open Access VersionFinal published version, 1.05 MBLicence: CC BY

Cite this

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title = "Device engineering of organic solar cells based on a boron subphthalocyanine electron donor molecule",

abstract = "A boron subphthalocyanine molecule has been employed as a novel electron donor in organic solar cells (OPVs), and optimized in terms of composition and device structure in small molecule solar cells. It is demonstrated that the power conversion efficiency (PCE) of the devices obtained by solution-processing in bulk heterojunction solar cells could be improved by one order of magnitude by changing the fabrication method to vacuum deposition, which promotes a better morphology in the OPV active layers. Importantly, upon insertion of an additional pristine C 70 thin interlayer between the active layer and the hole transport layer the PCE was further improved, highlighting the importance of interfacial layer engineering in such subphthalocyanine small molecule OPVs.",

keywords = "interlayer, organic solar cells, small molecule, vacuum-deposition",

author = "Mehrad Ahmadpour and Michela Prete and Aryal, {Um Kanta} and Petersen, {Anne Ugleholdt} and Mariam Ahmad and Horst-Gunter Rubahn and Jespersen, {Malte F.} and {Mikkelsen V}, Kurt and Vida Engmann and Nielsen, {Mogens Br{\o}ndsted} and Morten Madsen",

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doi = "10.1088/2515-7639/acada2",

language = "English",

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T1 - Device engineering of organic solar cells based on a boron subphthalocyanine electron donor molecule

AU - Ahmadpour, Mehrad

AU - Prete, Michela

AU - Aryal, Um Kanta

AU - Petersen, Anne Ugleholdt

AU - Ahmad, Mariam

AU - Rubahn, Horst-Gunter

AU - Jespersen, Malte F.

AU - Mikkelsen V, Kurt

AU - Engmann, Vida

AU - Nielsen, Mogens Brøndsted

AU - Madsen, Morten

PY - 2023/1/1

Y1 - 2023/1/1

N2 - A boron subphthalocyanine molecule has been employed as a novel electron donor in organic solar cells (OPVs), and optimized in terms of composition and device structure in small molecule solar cells. It is demonstrated that the power conversion efficiency (PCE) of the devices obtained by solution-processing in bulk heterojunction solar cells could be improved by one order of magnitude by changing the fabrication method to vacuum deposition, which promotes a better morphology in the OPV active layers. Importantly, upon insertion of an additional pristine C 70 thin interlayer between the active layer and the hole transport layer the PCE was further improved, highlighting the importance of interfacial layer engineering in such subphthalocyanine small molecule OPVs.

AB - A boron subphthalocyanine molecule has been employed as a novel electron donor in organic solar cells (OPVs), and optimized in terms of composition and device structure in small molecule solar cells. It is demonstrated that the power conversion efficiency (PCE) of the devices obtained by solution-processing in bulk heterojunction solar cells could be improved by one order of magnitude by changing the fabrication method to vacuum deposition, which promotes a better morphology in the OPV active layers. Importantly, upon insertion of an additional pristine C 70 thin interlayer between the active layer and the hole transport layer the PCE was further improved, highlighting the importance of interfacial layer engineering in such subphthalocyanine small molecule OPVs.

KW - interlayer

KW - organic solar cells

KW - small molecule

KW - vacuum-deposition

U2 - 10.1088/2515-7639/acada2

DO - 10.1088/2515-7639/acada2

M3 - Journal article

SN - 2515-7639

VL - 6

JO - Journal of Physics: Materials

JF - Journal of Physics: Materials

IS - 1

M1 - 014008

ER -

Device engineering of organic solar cells based on a boron subphthalocyanine electron donor molecule

Abstract

Keywords

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