Effects of film thickness on the photocurrent generation from polythiophene-fullerene thin films containing silver nanoparticles

Jing You; Yukina Takahashi; Hiroaki Yonemura; Tsuyoshi Akiyama; Sunao Yamada

doi:10.1143/JJAP.51.02BK04

Effects of film thickness on the photocurrent generation from polythiophene-fullerene thin films containing silver nanoparticles

Jing You, Yukina Takahashi, Hiroaki Yonemura, Tsuyoshi Akiyama, Sunao Yamada

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

18 Citations (Scopus)

Abstract

We have investigated the incident-photon-to-current conversion efficiency (IPCE) of thin films of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl- C ₆₁-butyric acid methylester (PCBM) as a function of film thickness, in the presence or absence of silver nanoparticles (AgPs) between the films and the indium-tin-oxide (ITO) electrode. The thickness of the film was evaluated by atomic force microscopy. The absorption and photocurrent action spectra of the films were measured to investigate the effect of the thickness of the P3HT:PCBM film. The results show that IPCE increased steeply in thinner films and the optimal range of thicknesses of the P3HT:PCBM film was 50-120 nm. In this optimal range, the IPCEs were 1.5- 1.8 times larger in the presence of AgPs.

Original language	English
Article number	02BK04
Journal	Japanese journal of applied physics
Volume	51
Issue number	2 PART 2
DOIs	https://doi.org/10.1143/JJAP.51.02BK04
Publication status	Published - Feb 1 2012

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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title = "Effects of film thickness on the photocurrent generation from polythiophene-fullerene thin films containing silver nanoparticles",

abstract = "We have investigated the incident-photon-to-current conversion efficiency (IPCE) of thin films of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl- C 61-butyric acid methylester (PCBM) as a function of film thickness, in the presence or absence of silver nanoparticles (AgPs) between the films and the indium-tin-oxide (ITO) electrode. The thickness of the film was evaluated by atomic force microscopy. The absorption and photocurrent action spectra of the films were measured to investigate the effect of the thickness of the P3HT:PCBM film. The results show that IPCE increased steeply in thinner films and the optimal range of thicknesses of the P3HT:PCBM film was 50-120 nm. In this optimal range, the IPCEs were 1.5- 1.8 times larger in the presence of AgPs.",

author = "Jing You and Yukina Takahashi and Hiroaki Yonemura and Tsuyoshi Akiyama and Sunao Yamada",

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AU - You, Jing

AU - Takahashi, Yukina

AU - Yonemura, Hiroaki

AU - Akiyama, Tsuyoshi

AU - Yamada, Sunao

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Y1 - 2012/2/1

N2 - We have investigated the incident-photon-to-current conversion efficiency (IPCE) of thin films of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl- C 61-butyric acid methylester (PCBM) as a function of film thickness, in the presence or absence of silver nanoparticles (AgPs) between the films and the indium-tin-oxide (ITO) electrode. The thickness of the film was evaluated by atomic force microscopy. The absorption and photocurrent action spectra of the films were measured to investigate the effect of the thickness of the P3HT:PCBM film. The results show that IPCE increased steeply in thinner films and the optimal range of thicknesses of the P3HT:PCBM film was 50-120 nm. In this optimal range, the IPCEs were 1.5- 1.8 times larger in the presence of AgPs.

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