Electron and hole mobility in vacuum deposited organic thin films of bis[2-(2-hydroxyphenyl)benzoxazolate]zinc and its derivatives

Takeshi Yasuda; Yoshihisa Yamaguchi; Katsuhiko Fujita; Tetsuo Tsutsui

doi:10.1246/cl.2003.644

Electron and hole mobility in vacuum deposited organic thin films of bis[2-(2-hydroxyphenyl)benzoxazolate]zinc and its derivatives

Takeshi Yasuda, Yoshihisa Yamaguchi, Katsuhiko Fujita, Tetsuo Tsutsui

Department of Advanced Device Materials

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

15 Citations (Scopus)

Abstract

The electronic properties of five derivatives of bis[2-(2-hydroxyphenyl)benzoxazolate]zinc (ZnPBO) have been investigated by the time-of-flight measurement of their thin films prepared with vacuum deposition. The electron and hole mobilities at electric field of 5 × 10⁵ V/cm for these compounds were 10^-5 cm²/Vs and 10 ^-6-10^-8 cm²/Vs, respectively. The electron mobility was found to be almost identical among those used in this study and higher than that of the representative electron transporting organic material, Alq. The hole mobility had significantly increased as the π-conjugation of the ligands of the complexes was extended.

Original language	English
Pages (from-to)	644-645
Number of pages	2
Journal	Chemistry Letters
Volume	32
Issue number	7
DOIs	https://doi.org/10.1246/cl.2003.644
Publication status	Published - Jul 5 2003

All Science Journal Classification (ASJC) codes

Chemistry(all)

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10.1246/cl.2003.644

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title = "Electron and hole mobility in vacuum deposited organic thin films of bis[2-(2-hydroxyphenyl)benzoxazolate]zinc and its derivatives",

abstract = "The electronic properties of five derivatives of bis[2-(2-hydroxyphenyl)benzoxazolate]zinc (ZnPBO) have been investigated by the time-of-flight measurement of their thin films prepared with vacuum deposition. The electron and hole mobilities at electric field of 5 × 105 V/cm for these compounds were 10-5 cm2/Vs and 10 -6-10-8 cm2/Vs, respectively. The electron mobility was found to be almost identical among those used in this study and higher than that of the representative electron transporting organic material, Alq. The hole mobility had significantly increased as the π-conjugation of the ligands of the complexes was extended.",

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T1 - Electron and hole mobility in vacuum deposited organic thin films of bis[2-(2-hydroxyphenyl)benzoxazolate]zinc and its derivatives

AU - Yasuda, Takeshi

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AU - Fujita, Katsuhiko

AU - Tsutsui, Tetsuo

PY - 2003/7/5

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N2 - The electronic properties of five derivatives of bis[2-(2-hydroxyphenyl)benzoxazolate]zinc (ZnPBO) have been investigated by the time-of-flight measurement of their thin films prepared with vacuum deposition. The electron and hole mobilities at electric field of 5 × 105 V/cm for these compounds were 10-5 cm2/Vs and 10 -6-10-8 cm2/Vs, respectively. The electron mobility was found to be almost identical among those used in this study and higher than that of the representative electron transporting organic material, Alq. The hole mobility had significantly increased as the π-conjugation of the ligands of the complexes was extended.

AB - The electronic properties of five derivatives of bis[2-(2-hydroxyphenyl)benzoxazolate]zinc (ZnPBO) have been investigated by the time-of-flight measurement of their thin films prepared with vacuum deposition. The electron and hole mobilities at electric field of 5 × 105 V/cm for these compounds were 10-5 cm2/Vs and 10 -6-10-8 cm2/Vs, respectively. The electron mobility was found to be almost identical among those used in this study and higher than that of the representative electron transporting organic material, Alq. The hole mobility had significantly increased as the π-conjugation of the ligands of the complexes was extended.

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