Hexyl-derivatized poly(3,4-ethylenedioxyselenophene): Novel highly stable organic electrochromic material with high contrast ratio, high coloration efficiency, and low-switching voltage

Mao Li, Asit Patra, Yana Sheynin, Michael Bendikov

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98 Citations (Scopus)

Abstract

The use of novel polyselenophenes as electrochromic (EC) materials was investigated. The poly(3,4-ethylenedioxyselenophene) (PEDOS) films were electrodeposited onto indium-tin-oxide (ITO) coated glass having dimensions of 3.2 cm × 0.7 cm at a constant potential of 0.93 V versus Ag/AgCl and passing charge of 0.03 C to form a film with a thickness of ≈ 100 nm. PEDOS film obtained under these conditions has a band gap of ca. 1.42 eV. Introduction of alkyl chains onto the polymer backbone significantly improved the EC properties of PEDOT derivatives. The band gap of PEDOS-C6 was estimated to be 1.54 eV (805 nm), which is about 0.12 eV higher than for PEDOS. It was observed that polyselenophene derivatives exhibit excellent characteristics for EC applications.

Original languageEnglish
Pages (from-to)1707-1711
Number of pages5
JournalAdvanced Materials
Volume21
Issue number17
DOIs
Publication statusPublished - May 4 2009

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Electric potential
Energy gap
Derivatives
Tin oxides
Indium
Polymers
Glass
indium tin oxide

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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title = "Hexyl-derivatized poly(3,4-ethylenedioxyselenophene): Novel highly stable organic electrochromic material with high contrast ratio, high coloration efficiency, and low-switching voltage",
abstract = "The use of novel polyselenophenes as electrochromic (EC) materials was investigated. The poly(3,4-ethylenedioxyselenophene) (PEDOS) films were electrodeposited onto indium-tin-oxide (ITO) coated glass having dimensions of 3.2 cm × 0.7 cm at a constant potential of 0.93 V versus Ag/AgCl and passing charge of 0.03 C to form a film with a thickness of ≈ 100 nm. PEDOS film obtained under these conditions has a band gap of ca. 1.42 eV. Introduction of alkyl chains onto the polymer backbone significantly improved the EC properties of PEDOT derivatives. The band gap of PEDOS-C6 was estimated to be 1.54 eV (805 nm), which is about 0.12 eV higher than for PEDOS. It was observed that polyselenophene derivatives exhibit excellent characteristics for EC applications.",
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T1 - Hexyl-derivatized poly(3,4-ethylenedioxyselenophene)

T2 - Novel highly stable organic electrochromic material with high contrast ratio, high coloration efficiency, and low-switching voltage

AU - Li, Mao

AU - Patra, Asit

AU - Sheynin, Yana

AU - Bendikov, Michael

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Y1 - 2009/5/4

N2 - The use of novel polyselenophenes as electrochromic (EC) materials was investigated. The poly(3,4-ethylenedioxyselenophene) (PEDOS) films were electrodeposited onto indium-tin-oxide (ITO) coated glass having dimensions of 3.2 cm × 0.7 cm at a constant potential of 0.93 V versus Ag/AgCl and passing charge of 0.03 C to form a film with a thickness of ≈ 100 nm. PEDOS film obtained under these conditions has a band gap of ca. 1.42 eV. Introduction of alkyl chains onto the polymer backbone significantly improved the EC properties of PEDOT derivatives. The band gap of PEDOS-C6 was estimated to be 1.54 eV (805 nm), which is about 0.12 eV higher than for PEDOS. It was observed that polyselenophene derivatives exhibit excellent characteristics for EC applications.

AB - The use of novel polyselenophenes as electrochromic (EC) materials was investigated. The poly(3,4-ethylenedioxyselenophene) (PEDOS) films were electrodeposited onto indium-tin-oxide (ITO) coated glass having dimensions of 3.2 cm × 0.7 cm at a constant potential of 0.93 V versus Ag/AgCl and passing charge of 0.03 C to form a film with a thickness of ≈ 100 nm. PEDOS film obtained under these conditions has a band gap of ca. 1.42 eV. Introduction of alkyl chains onto the polymer backbone significantly improved the EC properties of PEDOT derivatives. The band gap of PEDOS-C6 was estimated to be 1.54 eV (805 nm), which is about 0.12 eV higher than for PEDOS. It was observed that polyselenophene derivatives exhibit excellent characteristics for EC applications.

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