Modeling of the X-irradiation response of the carrier relaxation time in P3HT:PCBM organic-based photocells

Kenneth Kambour; Nadav Rosen; Camron Kouhestani; Duc Nguyen; Clay Mayberry; Roderick A.B. Devine; A. Kumar; C. C. Chen; Gang Li; Yang Yang

doi:10.1109/TNS.2012.2222666

Modeling of the X-irradiation response of the carrier relaxation time in P3HT:PCBM organic-based photocells

Kenneth Kambour, Nadav Rosen, Camron Kouhestani, Duc Nguyen, Clay Mayberry, Roderick A.B. Devine, A. Kumar, C. C. Chen, Gang Li, Yang Yang

Research output: Journal article publication › Journal article › Academic research › peer-review

8 Citations (Scopus)

Abstract

Initial experimental work has demonstrated that X-ray bombardment of organic-based photocells (specifically P3HT:PCBM-based) leads to a reduction in the open-circuit voltage (Voc) without apparent change in the carrier relaxation time. The variation of Vocwas suggested to be due to the injection and trapping of holes near the anode, which resulted in a decrease in the built-in potential. We have extended the experimental measurements to higher total dose (∼ 1300(SiO2)). Using standard inorganic modeling tools, a device model of the organic cell has been developed and predictions made. These predictions have been compared to the results of the previous and new experimental measurements and they demonstrate reasonable agreement between the two, thereby supporting the initial charge buildup hypothesis. Questions about the origin and behavior of the photo-carrier relaxation arise.

Original language	English
Article number	6365403
Pages (from-to)	2902-2908
Number of pages	7
Journal	IEEE Transactions on Nuclear Science
Volume	59
Issue number	6
DOIs	https://doi.org/10.1109/TNS.2012.2222666
Publication status	Published - 26 Dec 2012
Externally published	Yes

Keywords

Simulation
solar cells
X-rays

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

More information

10.1109/TNS.2012.2222666

Cite this

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title = "Modeling of the X-irradiation response of the carrier relaxation time in P3HT:PCBM organic-based photocells",

abstract = "Initial experimental work has demonstrated that X-ray bombardment of organic-based photocells (specifically P3HT:PCBM-based) leads to a reduction in the open-circuit voltage (Voc) without apparent change in the carrier relaxation time. The variation of Vocwas suggested to be due to the injection and trapping of holes near the anode, which resulted in a decrease in the built-in potential. We have extended the experimental measurements to higher total dose (∼ 1300(SiO2)). Using standard inorganic modeling tools, a device model of the organic cell has been developed and predictions made. These predictions have been compared to the results of the previous and new experimental measurements and they demonstrate reasonable agreement between the two, thereby supporting the initial charge buildup hypothesis. Questions about the origin and behavior of the photo-carrier relaxation arise.",

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AU - Kambour, Kenneth

AU - Rosen, Nadav

AU - Kouhestani, Camron

AU - Nguyen, Duc

AU - Mayberry, Clay

AU - Devine, Roderick A.B.

AU - Kumar, A.

AU - Chen, C. C.

AU - Li, Gang

AU - Yang, Yang

PY - 2012/12/26

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KW - solar cells

KW - X-rays

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Modeling of the X-irradiation response of the carrier relaxation time in P3HT:PCBM organic-based photocells

Abstract

Keywords

ASJC Scopus subject areas

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