Improvement of stability for organic solar cells by using molybdenum trioxide buffer layer

Yoshihiro Kanai; Toshinori Matsushima; Hideyuki Murata

doi:10.1016/j.tsf.2009.07.015

Improvement of stability for organic solar cells by using molybdenum trioxide buffer layer

Yoshihiro Kanai, Toshinori Matsushima, Hideyuki Murata

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

36 Citations (Scopus)

Abstract

We demonstrated that the stability of organic solar cells (OSCs) under light irradiation is markedly enhanced by inserting a molybdenum trioxide (MoO₃) buffer layer between an anode layer of indium tin oxide (ITO) and a p-type layer of 5,10,15,20-tetraphenylporphyrin (H₂TPP) or N,N'-di(1-naphthyl)-N,N'-diphenylbenzidine (α-NPD). The use of the MoO₃ layer also enhanced open-circuit voltages and power conversion efficiencies of the OSCs due to an increase in built-in potential. From results of stability test of hole-only α-NPD devices, we concluded that the OSC degradation occurs near the ITO/p-type layer interface and that the use of the MoO₃ layer can prevent the degradation at this interface.

Original language	English
Pages (from-to)	537-540
Number of pages	4
Journal	Thin Solid Films
Volume	518
Issue number	2
DOIs	https://doi.org/10.1016/j.tsf.2009.07.015
Publication status	Published - Nov 30 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2009.07.015

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title = "Improvement of stability for organic solar cells by using molybdenum trioxide buffer layer",

abstract = "We demonstrated that the stability of organic solar cells (OSCs) under light irradiation is markedly enhanced by inserting a molybdenum trioxide (MoO3) buffer layer between an anode layer of indium tin oxide (ITO) and a p-type layer of 5,10,15,20-tetraphenylporphyrin (H2TPP) or N,N'-di(1-naphthyl)-N,N'-diphenylbenzidine (α-NPD). The use of the MoO3 layer also enhanced open-circuit voltages and power conversion efficiencies of the OSCs due to an increase in built-in potential. From results of stability test of hole-only α-NPD devices, we concluded that the OSC degradation occurs near the ITO/p-type layer interface and that the use of the MoO3 layer can prevent the degradation at this interface.",

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AU - Kanai, Yoshihiro

AU - Matsushima, Toshinori

AU - Murata, Hideyuki

PY - 2009/11/30

Y1 - 2009/11/30

N2 - We demonstrated that the stability of organic solar cells (OSCs) under light irradiation is markedly enhanced by inserting a molybdenum trioxide (MoO3) buffer layer between an anode layer of indium tin oxide (ITO) and a p-type layer of 5,10,15,20-tetraphenylporphyrin (H2TPP) or N,N'-di(1-naphthyl)-N,N'-diphenylbenzidine (α-NPD). The use of the MoO3 layer also enhanced open-circuit voltages and power conversion efficiencies of the OSCs due to an increase in built-in potential. From results of stability test of hole-only α-NPD devices, we concluded that the OSC degradation occurs near the ITO/p-type layer interface and that the use of the MoO3 layer can prevent the degradation at this interface.

AB - We demonstrated that the stability of organic solar cells (OSCs) under light irradiation is markedly enhanced by inserting a molybdenum trioxide (MoO3) buffer layer between an anode layer of indium tin oxide (ITO) and a p-type layer of 5,10,15,20-tetraphenylporphyrin (H2TPP) or N,N'-di(1-naphthyl)-N,N'-diphenylbenzidine (α-NPD). The use of the MoO3 layer also enhanced open-circuit voltages and power conversion efficiencies of the OSCs due to an increase in built-in potential. From results of stability test of hole-only α-NPD devices, we concluded that the OSC degradation occurs near the ITO/p-type layer interface and that the use of the MoO3 layer can prevent the degradation at this interface.

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Improvement of stability for organic solar cells by using molybdenum trioxide buffer layer

Abstract

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