Stackable spectral-sensitive conductive films based on cyanine aggregates via an inkjet method

Tokuma Nakamichi, Yu Yang, Tomoya Ohta, Hiroaki Yoshioka, Masayuki Yahiro, Masanao Era, Hirofumi Watanabe, Yuanjing Cui, Yuji Oki, Guodong Qian

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this work, wavelength sensitive organic bulk-hetero photodiodes were fabricated by a piezoelectric inkjet method based on the J-type aggregates of cyanine dye molecules doped into poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) thin films on indium tin oxide anodes. The cyanine dye concentration in the inkjet printed films was optimized and the J-aggregate formation during the drying process was investigated by local absorption spectra. It was found that at lower dye concentrations, not only the J-aggregate formation but also the radiation sensitivities of the films were improved significantly. Moreover, the stacking of the cyanine dye - poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) spots demonstrated the linear increase on the optical density and film thickness without deteriorating the J-aggregate formation, indicating their potential in application as narrow band filters.

Original languageEnglish
Pages (from-to)333-338
Number of pages6
JournalDyes and Pigments
Volume98
Issue number3
DOIs
Publication statusPublished - Apr 25 2013

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Conductive films
Coloring Agents
Dyes
Styrene
Optical films
Density (optical)
Photodiodes
Tin oxides
Indium
Film thickness
Absorption spectra
Drying
Anodes
Radiation
Thin films
Wavelength
Molecules
poly(3,4-ethylene dioxythiophene)

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Process Chemistry and Technology

Cite this

Stackable spectral-sensitive conductive films based on cyanine aggregates via an inkjet method. / Nakamichi, Tokuma; Yang, Yu; Ohta, Tomoya; Yoshioka, Hiroaki; Yahiro, Masayuki; Era, Masanao; Watanabe, Hirofumi; Cui, Yuanjing; Oki, Yuji; Qian, Guodong.

In: Dyes and Pigments, Vol. 98, No. 3, 25.04.2013, p. 333-338.

Research output: Contribution to journalArticle

Nakamichi, T, Yang, Y, Ohta, T, Yoshioka, H, Yahiro, M, Era, M, Watanabe, H, Cui, Y, Oki, Y & Qian, G 2013, 'Stackable spectral-sensitive conductive films based on cyanine aggregates via an inkjet method', Dyes and Pigments, vol. 98, no. 3, pp. 333-338. https://doi.org/10.1016/j.dyepig.2013.03.013
Nakamichi, Tokuma ; Yang, Yu ; Ohta, Tomoya ; Yoshioka, Hiroaki ; Yahiro, Masayuki ; Era, Masanao ; Watanabe, Hirofumi ; Cui, Yuanjing ; Oki, Yuji ; Qian, Guodong. / Stackable spectral-sensitive conductive films based on cyanine aggregates via an inkjet method. In: Dyes and Pigments. 2013 ; Vol. 98, No. 3. pp. 333-338.
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AU - Era, Masanao

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