Suppression of bimolecular recombination by UV-sensitive electron transport layers in organic solar cells

Doo Hyun Ko; John R. Tumbleston; Myoung Ryul Ok; Honggu Chun; Rene Lopez; Edward Samulski

doi:10.1063/1.3488609

Suppression of bimolecular recombination by UV-sensitive electron transport layers in organic solar cells

Doo Hyun Ko, John R. Tumbleston, Myoung Ryul Ok, Honggu Chun, Rene Lopez, Edward Samulski

University of North Carolina at Chapel Hill

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

9 Scopus citations

Abstract

Incorporating UV-sensitive electron transport layers (ETLs) into organic bulk heterojunction (BHJ) photovoltaic devices dramatically impacts short-circuit current (Jsc) and fill factor characteristics. Resistivity changes induced by UV illumination in the ETL of inverted BHJ devices suppress bimolecular recombination producing up to a two orders of magnitude change in Jsc. Electro-optical modeling and light intensity experiments effectively demonstrate that bimolecular recombination, in the form of diode current losses, controls the extracted photocurrent and is directly dependent on the ETL resistivity.

Original language	English
Article number	083101
Journal	Journal of Applied Physics
Volume	108
Issue number	8
DOIs	https://doi.org/10.1063/1.3488609
State	Published - 15 Oct 2010
Externally published	Yes

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10.1063/1.3488609

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title = "Suppression of bimolecular recombination by UV-sensitive electron transport layers in organic solar cells",

abstract = "Incorporating UV-sensitive electron transport layers (ETLs) into organic bulk heterojunction (BHJ) photovoltaic devices dramatically impacts short-circuit current (Jsc) and fill factor characteristics. Resistivity changes induced by UV illumination in the ETL of inverted BHJ devices suppress bimolecular recombination producing up to a two orders of magnitude change in Jsc. Electro-optical modeling and light intensity experiments effectively demonstrate that bimolecular recombination, in the form of diode current losses, controls the extracted photocurrent and is directly dependent on the ETL resistivity.",

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AU - Ko, Doo Hyun

AU - Tumbleston, John R.

AU - Ok, Myoung Ryul

AU - Chun, Honggu

AU - Lopez, Rene

AU - Samulski, Edward

PY - 2010/10/15

Y1 - 2010/10/15

N2 - Incorporating UV-sensitive electron transport layers (ETLs) into organic bulk heterojunction (BHJ) photovoltaic devices dramatically impacts short-circuit current (Jsc) and fill factor characteristics. Resistivity changes induced by UV illumination in the ETL of inverted BHJ devices suppress bimolecular recombination producing up to a two orders of magnitude change in Jsc. Electro-optical modeling and light intensity experiments effectively demonstrate that bimolecular recombination, in the form of diode current losses, controls the extracted photocurrent and is directly dependent on the ETL resistivity.

AB - Incorporating UV-sensitive electron transport layers (ETLs) into organic bulk heterojunction (BHJ) photovoltaic devices dramatically impacts short-circuit current (Jsc) and fill factor characteristics. Resistivity changes induced by UV illumination in the ETL of inverted BHJ devices suppress bimolecular recombination producing up to a two orders of magnitude change in Jsc. Electro-optical modeling and light intensity experiments effectively demonstrate that bimolecular recombination, in the form of diode current losses, controls the extracted photocurrent and is directly dependent on the ETL resistivity.

UR - https://www.scopus.com/pages/publications/78149446111

U2 - 10.1063/1.3488609

DO - 10.1063/1.3488609

M3 - Article

AN - SCOPUS:78149446111

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 8

M1 - 083101

ER -

Suppression of bimolecular recombination by UV-sensitive electron transport layers in organic solar cells

Abstract

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