Evidence for long drift carrier lifetimes in [Fe(Htrz)2(trz)](BF4) plus polyaniline composites

被引：8

作者：

Mishra, Esha ^{[1
]}

Ekanayaka, Thilini K. ^{[1
]}

McElveen, Kayleigh A. ^{[2
]}

Lai, Rebecca Y. ^{[2
]}

Dowben, Peter A. ^{[1
]}

机构：

[1] Univ Nebraska, Dept Phys & Astron, Theodore Jorgensen Hall,855 North 16th St, Lincoln, NE 68588 USA

[2] Univ Nebraska, Dept Chem, Hamilton Hall, Lincoln, NE 68588 USA

来源：

ORGANIC ELECTRONICS | 2022年 / 105卷

基金：

美国国家科学基金会;

关键词：

Fe(Htrz)(2) (trz)](BF4 ); Spin crossover molecule; Polyaniline; ACID-DOPED POLYANILINE; SPIN-CROSSOVER; STATE; TEMPERATURE; PRESSURE; COMPLEX; FORM;

D O I：

10.1016/j.orgel.2022.106516

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An effort has been made to determine the majority carrier and drift carrier lifetimes in the promising spin crossover molecule [Fe(Htrz)(2)(trz)](BF4) (where Htrz = 1H-1,2,4-triazole) plus polyaniline composite. The current voltage and capacitance voltage characteristics of the [Fe(Htrz)(2)(trz)](BF4) plus polyaniline composite were studied at both the low spin state at T = 320 K and the high spin state at T = 380 K. In these composites, the drift carrier lifetimes are in excess of microseconds, and there are indications that the majority carriers are holes. While the drift carrier lifetime is much lower when the [Fe(Htrz)(2)(trz)](BF4) plus polyaniline composite is in the low spin state, there are indications that for at least one polyaniline composite, the carrier mobility is much higher in the low spin state so that the mobility is consistent with the higher conductivity of the low spin state.

引用

页数：6

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