Solid-state solar cells consisting of polythiophene-porphyrin composite films

Tsuyoshi Akiyama, Miho Matsushita, Keitaro Kakutani, Sunao Yamada, Kensuke Takechi, Tohru Shiga, Tomoyoshi Motohiro, Hideki Nakayama, Keiichi Kohama

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Sandwich-type solid-state solar cells using polythiophene-porphyrin composite films were fabricated. A spin-coated film of poly(3-dodecylthiophene) (P3DT) was fabricated on a old electrode. Next, an electropolymerized polythiophene film was superimposed on the surface of the spin-coated P3DT film by electrochemical polymerization of bithiophene (BiTh) with repeated redox cycles in the 0-+2 V region. Then, tetrathienylporphyrin (TThP) was further assembled on the polythiophene-modified electrode by using the same electrochemical polymerization procedure (1 or 10 cycles), to obtain polythiophene-porphyrin modified gold electrodes. Finally, an aluminum electrode was deposited on the polythiophene-porphyrin modified gold electrode by vacuum deposition, forming the sandwich-type solid-state solar cells. The morphological characterizations of the films were carried out by scanning electron microscopy. The thickness of the organic layer decreased from ∼5 μm to ∼3 μn by performing TThP polymerization. The amount of porphyrin moiety in the composite film was larger for the modified electrode after 10 cycles of electrochemical TThP polymerization than for that after 1 cycle of TThP polymerization. The resultant photocurrent increased with scanning cycle of TThP polymerization in the 400-600 nm region. The combination of polythiophene and porphyrin in the electrochemically modified electrode is one of the useful systems for photocurrent generation.

Original languageEnglish
Pages (from-to)2799-2802
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume44
Issue number4 B
DOIs
Publication statusPublished - Apr 1 2005

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Porphyrins
Composite films
porphyrins
Solar cells
solar cells
solid state
polymerization
Electrodes
composite materials
electrodes
Polymers
cycles
Polymerization
Electropolymerization
Photocurrents
photocurrents
Gold
gold
Vacuum deposition
vacuum deposition

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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Solid-state solar cells consisting of polythiophene-porphyrin composite films. / Akiyama, Tsuyoshi; Matsushita, Miho; Kakutani, Keitaro; Yamada, Sunao; Takechi, Kensuke; Shiga, Tohru; Motohiro, Tomoyoshi; Nakayama, Hideki; Kohama, Keiichi.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 44, No. 4 B, 01.04.2005, p. 2799-2802.

Research output: Contribution to journalArticle

Akiyama, T, Matsushita, M, Kakutani, K, Yamada, S, Takechi, K, Shiga, T, Motohiro, T, Nakayama, H & Kohama, K 2005, 'Solid-state solar cells consisting of polythiophene-porphyrin composite films', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 44, no. 4 B, pp. 2799-2802. https://doi.org/10.1143/JJAP.44.2799
Akiyama, Tsuyoshi ; Matsushita, Miho ; Kakutani, Keitaro ; Yamada, Sunao ; Takechi, Kensuke ; Shiga, Tohru ; Motohiro, Tomoyoshi ; Nakayama, Hideki ; Kohama, Keiichi. / Solid-state solar cells consisting of polythiophene-porphyrin composite films. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2005 ; Vol. 44, No. 4 B. pp. 2799-2802.
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