Self-supported hysteresis-free flexible organic thermal transistor based on commercial graphite paper

Zhu, Miao1; Cao, Jupeng1; Wei, Xiaoyun1; He, Yaowu1; Li, Aiyuan1; Xu, Xiuru1; Ali, Muhammad Umair2; Yan, Lijia3; Meng, Hong1

2018-06-18

10.1063/1.5034047

APPLIED PHYSICS LETTERS   影响因子和分区

0003-6951

1077-3118

Due to their high thermal conductivity, stability, light weight, and low cost, graphite products are widely used as thermally conductive materials in current electronic devices and are promising materials for future flexible electronics. However, the intrinsic high rough surface of graphite severely impedes the fabrication of thermal transistors based on graphite products. On the other hand, most of the flexible thermal transistors reported to date are based on polymer substrates, whose thermal conductivities are extremely low for thermal sensing. To address these issues herein, a flexible commercial graphite paper with high thermal conductivity was used as both the substrate and the back gate of thermal transistors. Fluorinated polyimide was also synthesized as a high performance dielectric material and was skillfully blade-coated on a flexible graphite paper to reduce the surface roughness. As a result, the as-fabricated flexible device exhibits extremely low hysteresis, wide operating temperature range (20-100 degrees C), high stability, and temperature sensing performance. Moreover, the as-fabricated pentacene device reached the mobility of 0.146 cm(2) V-1 s(-1), which is highly competitive among the reported flexible organic thermal transistors. Such thermal transistors are promising for integration in current electronic devices and promote the diversity of the flexible transistor substrates. Published by AIP Publishing.

SCI ; EI

英语

NI期刊

其他

Guangdong Key Research Project[2015B090914002]

Physics

Physics, Applied

WOS:000435987400042

AMER INST PHYSICS

20182605372451

Conductive materials ; Dielectric materials ; Flexible electronics ; Graphite ; Hysteresis ; Substrates ; Surface roughness ; Thermoelectric equipment ; Transistors

Thermoelectric Energy:615.4 ; Thermodynamics:641.1 ; Dielectric Materials:708.1 ; Conducting Materials:708.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Electronic Equipment, General Purpose and Industrial:715 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Systems Science:961

PHYSICS

Web of Science

1.Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Shenzhen 518055, Peoples R China
2.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Zhu, Miao,Cao, Jupeng,Wei, Xiaoyun,et al. Self-supported hysteresis-free flexible organic thermal transistor based on commercial graphite paper[J]. APPLIED PHYSICS LETTERS,2018,112(25).

Zhu, Miao.,Cao, Jupeng.,Wei, Xiaoyun.,He, Yaowu.,Li, Aiyuan.,...&Meng, Hong.(2018).Self-supported hysteresis-free flexible organic thermal transistor based on commercial graphite paper.APPLIED PHYSICS LETTERS,112(25).

Zhu, Miao,et al."Self-supported hysteresis-free flexible organic thermal transistor based on commercial graphite paper".APPLIED PHYSICS LETTERS 112.25(2018).