Raman study of the interaction between regioregular poly(3-hexylthiophene) (P3HT) and transition-metal oxides MoO3, V2O5, and WO3 in polymer solar cells

Jun Yamamoto; Yukio Furukawa

doi:10.1016/j.cplett.2015.12.012

Raman study of the interaction between regioregular poly(3-hexylthiophene) (P3HT) and transition-metal oxides MoO₃, V₂O₅, and WO₃ in polymer solar cells

Jun Yamamoto^*, Yukio Furukawa

^*この研究の対応する著者

研究成果: Article › 査読

18 被引用数 (Scopus)

抄録

We measured the Raman spectra of indium-tin oxide (ITO)/poly(3-hexylthiophene) (P3HT)/metal oxide (MoO₃, V₂O₅, or WO₃) samples as an anode buffer layer. The difference Raman spectrum between ITO/P3HT/MoO₃ and ITO/P3HT was similar to that of positive polarons generated by FeCl₃ doping, which indicated that positive polarons were formed upon MoO₃ deposition. MoO₃ functioned as an oxidizing dopant. Positive polarons were also formed upon V₂O₅ and WO₃ deposition. The polaron electronic energy levels formed near the Fermi level of an ITO, Ag, or Au electrode are associated with an improvement of charge transport through the interface.

本文言語	English
ページ（範囲）	267-270
ページ数	4
ジャーナル	Chemical Physics Letters
巻	644
DOI	https://doi.org/10.1016/j.cplett.2015.12.012
出版ステータス	Published - 2016 1月 16

ASJC Scopus subject areas

物理化学および理論化学
物理学および天文学（全般）

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10.1016/j.cplett.2015.12.012

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引用スタイル

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abstract = "We measured the Raman spectra of indium-tin oxide (ITO)/poly(3-hexylthiophene) (P3HT)/metal oxide (MoO3, V2O5, or WO3) samples as an anode buffer layer. The difference Raman spectrum between ITO/P3HT/MoO3 and ITO/P3HT was similar to that of positive polarons generated by FeCl3 doping, which indicated that positive polarons were formed upon MoO3 deposition. MoO3 functioned as an oxidizing dopant. Positive polarons were also formed upon V2O5 and WO3 deposition. The polaron electronic energy levels formed near the Fermi level of an ITO, Ag, or Au electrode are associated with an improvement of charge transport through the interface.",

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AB - We measured the Raman spectra of indium-tin oxide (ITO)/poly(3-hexylthiophene) (P3HT)/metal oxide (MoO3, V2O5, or WO3) samples as an anode buffer layer. The difference Raman spectrum between ITO/P3HT/MoO3 and ITO/P3HT was similar to that of positive polarons generated by FeCl3 doping, which indicated that positive polarons were formed upon MoO3 deposition. MoO3 functioned as an oxidizing dopant. Positive polarons were also formed upon V2O5 and WO3 deposition. The polaron electronic energy levels formed near the Fermi level of an ITO, Ag, or Au electrode are associated with an improvement of charge transport through the interface.

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