Air Environment Degradation of a High-Performance Inverted PTB7-Th:PC <inf>70</inf> BM Solar Cell

Gonzalo Lastra, Victor S. Balderrama, Luis Resendiz, Josep Pallares, Lluis F. Marsal, Victor Cabrera, Magali Estrada

Research output: Contribution to journalArticleResearchpeer-review

Abstract

© 2011-2012 IEEE. In this paper, the degradation of the electrical parameters of a high-performance inverted PTB7-Th:PC 70 BM solar cell, having an efficiency of 10.95%, is analyzed. The cathode side is formed by indium tin oxide (ITO) material in contact with 10 nm of Poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene) (PFN) and 0.6 nm of lithium fluoride. The anode side is formed by V 2 O 5 (hole-transport layer) in contact with Ag metal. The current density-voltage (J-V) curves, as well as the short-circuit current (J SC ), open-circuit voltage (V OC ), fill factor, and power conversion efficiency parameters, were obtained from fabricated inverted organic solar cells (OSCs). The degradation of these parameters was measured as a function of time when the devices were exposed to an air environment. A metal-insulator-metal model was implemented using the device simulator Silvaco/ATLAS technology computer-aided design (TCAD) to simulate the degradation of the cells. The experimental and simulated J-V curves show good agreement on the fourth quadrant. To verify our model, a second structure was fabricated (ITO/PFN/PTB7:PC 70 BM/V 2 O 5 /Ag) and the experimental results were successfully fitted, which indicated that the proposed procedure can be used to predict the degradation behavior of an inverted OSC when it is exposed to ambient air.
Original languageAmerican English
Pages (from-to)464-468
Number of pages417
JournalIEEE Journal of Photovoltaics
DOIs
StatePublished - 1 Mar 2019

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Solar cells
solar cells
Air
degradation
Degradation
Metals
air
Tin oxides
indium oxides
Indium
tin oxides
Electrodes
metals
Efficiency
Computer-Aided Design
Equipment and Supplies
lithium fluorides
quadrants
Open circuit voltage
curves

Cite this

Lastra, Gonzalo ; Balderrama, Victor S. ; Resendiz, Luis ; Pallares, Josep ; Marsal, Lluis F. ; Cabrera, Victor ; Estrada, Magali. / Air Environment Degradation of a High-Performance Inverted PTB7-Th:PC <inf>70</inf> BM Solar Cell. In: IEEE Journal of Photovoltaics. 2019 ; pp. 464-468.
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title = "Air Environment Degradation of a High-Performance Inverted PTB7-Th:PC 70 BM Solar Cell",
abstract = "{\circledC} 2011-2012 IEEE. In this paper, the degradation of the electrical parameters of a high-performance inverted PTB7-Th:PC 70 BM solar cell, having an efficiency of 10.95{\%}, is analyzed. The cathode side is formed by indium tin oxide (ITO) material in contact with 10 nm of Poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene) (PFN) and 0.6 nm of lithium fluoride. The anode side is formed by V 2 O 5 (hole-transport layer) in contact with Ag metal. The current density-voltage (J-V) curves, as well as the short-circuit current (J SC ), open-circuit voltage (V OC ), fill factor, and power conversion efficiency parameters, were obtained from fabricated inverted organic solar cells (OSCs). The degradation of these parameters was measured as a function of time when the devices were exposed to an air environment. A metal-insulator-metal model was implemented using the device simulator Silvaco/ATLAS technology computer-aided design (TCAD) to simulate the degradation of the cells. The experimental and simulated J-V curves show good agreement on the fourth quadrant. To verify our model, a second structure was fabricated (ITO/PFN/PTB7:PC 70 BM/V 2 O 5 /Ag) and the experimental results were successfully fitted, which indicated that the proposed procedure can be used to predict the degradation behavior of an inverted OSC when it is exposed to ambient air.",
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Air Environment Degradation of a High-Performance Inverted PTB7-Th:PC <inf>70</inf> BM Solar Cell. / Lastra, Gonzalo; Balderrama, Victor S.; Resendiz, Luis; Pallares, Josep; Marsal, Lluis F.; Cabrera, Victor; Estrada, Magali.

In: IEEE Journal of Photovoltaics, 01.03.2019, p. 464-468.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Air Environment Degradation of a High-Performance Inverted PTB7-Th:PC 70 BM Solar Cell

AU - Lastra, Gonzalo

AU - Balderrama, Victor S.

AU - Resendiz, Luis

AU - Pallares, Josep

AU - Marsal, Lluis F.

AU - Cabrera, Victor

AU - Estrada, Magali

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N2 - © 2011-2012 IEEE. In this paper, the degradation of the electrical parameters of a high-performance inverted PTB7-Th:PC 70 BM solar cell, having an efficiency of 10.95%, is analyzed. The cathode side is formed by indium tin oxide (ITO) material in contact with 10 nm of Poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene) (PFN) and 0.6 nm of lithium fluoride. The anode side is formed by V 2 O 5 (hole-transport layer) in contact with Ag metal. The current density-voltage (J-V) curves, as well as the short-circuit current (J SC ), open-circuit voltage (V OC ), fill factor, and power conversion efficiency parameters, were obtained from fabricated inverted organic solar cells (OSCs). The degradation of these parameters was measured as a function of time when the devices were exposed to an air environment. A metal-insulator-metal model was implemented using the device simulator Silvaco/ATLAS technology computer-aided design (TCAD) to simulate the degradation of the cells. The experimental and simulated J-V curves show good agreement on the fourth quadrant. To verify our model, a second structure was fabricated (ITO/PFN/PTB7:PC 70 BM/V 2 O 5 /Ag) and the experimental results were successfully fitted, which indicated that the proposed procedure can be used to predict the degradation behavior of an inverted OSC when it is exposed to ambient air.

AB - © 2011-2012 IEEE. In this paper, the degradation of the electrical parameters of a high-performance inverted PTB7-Th:PC 70 BM solar cell, having an efficiency of 10.95%, is analyzed. The cathode side is formed by indium tin oxide (ITO) material in contact with 10 nm of Poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene) (PFN) and 0.6 nm of lithium fluoride. The anode side is formed by V 2 O 5 (hole-transport layer) in contact with Ag metal. The current density-voltage (J-V) curves, as well as the short-circuit current (J SC ), open-circuit voltage (V OC ), fill factor, and power conversion efficiency parameters, were obtained from fabricated inverted organic solar cells (OSCs). The degradation of these parameters was measured as a function of time when the devices were exposed to an air environment. A metal-insulator-metal model was implemented using the device simulator Silvaco/ATLAS technology computer-aided design (TCAD) to simulate the degradation of the cells. The experimental and simulated J-V curves show good agreement on the fourth quadrant. To verify our model, a second structure was fabricated (ITO/PFN/PTB7:PC 70 BM/V 2 O 5 /Ag) and the experimental results were successfully fitted, which indicated that the proposed procedure can be used to predict the degradation behavior of an inverted OSC when it is exposed to ambient air.

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