Investigating the single crystal OFET and photo-responsive characteristics based on an anthracene linked benzo[b]benzo[4,5]thieno[2,3-d]thiophene semiconductor

Yan, Lijia1,5; Qi, Maowei2,3; Li, Aiyuan4; Meng, Hong2,3; Zhao, Xingzhong5; Ali, Muhammad Umair6; Xu, Baomin1

2019-09

10.1016/j.orgel.2019.05.039

ORGANIC ELECTRONICS   影响因子和分区

1566-1199

1878-5530

Organic single crystals have great potential in optoelectronic devices owing to their grain-boundary free nature and long exciton diffusion length. In this report, an anthracene linked benzo[b]benzo[4,5]thieno[2,3-d]thiophene semiconductor, 2-An-BTBT was designed and synthesized. Belt like organic single crystals based on 2-An-BTBT were grown via physical vapor transport method. Using an ultrathin wire as the shadow mask, organic field effect transistor (OFET) with a channel length of around 15 mu m was fabricated and the highest mobility of 0.9 cm(2)V(-1)s(-1) and average mobility of 0.58 cm(2)/V were obtained. Furthermore, photo-response characteristics of the 2-An-BTBT based device were also investigated. Photo-response of as high as 7136 AW(-1) was achieved via 17.7 mu W/cm(2) @380 nm mono wavelength light illumination which is ascribed to the long exciton diffusion length of organic single crystal and ultra-short channel length of the fabricated OFET. Stable switching behavior with rising time and decline time of several seconds is attained which indicates the existence of shallow traps at the insulator/semiconductor interface.

Anthracene Benzo[b]benzo[4,5]thieno[2,3-d]thiophene (BTBT) Single crystal Photo-responsive OFET Phototransistor

SCI ; EI

英语

第一 ; 通讯

China Postdoctoral Science Foundation[2018M632903]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied

WOS:000470107700001

ELSEVIER SCIENCE BV

20192407047220

Anthracene ; Excitons ; Grain boundaries ; Optoelectronic devices ; Organic field effect transistors ; Phototransistors ; Thiophene

Semiconductor Devices and Integrated Circuits:714.2 ; Optical Devices and Systems:741.3 ; Organic Compounds:804.1 ; Crystalline Solids:933.1

PHYSICS

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Nanjing Tech Univ Nanjing Tech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, KLOFE, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
3.Nanjing Tech Univ Nanjing Tech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, IAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
4.Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Shenzhen 518055, Peoples R China
5.Wuhan Univ, Dept Phys, Wuhan 430072, Hubei, Peoples R China
6.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China

Yan, Lijia,Qi, Maowei,Li, Aiyuan,et al. Investigating the single crystal OFET and photo-responsive characteristics based on an anthracene linked benzo[b]benzo[4,5]thieno[2,3-d]thiophene semiconductor[J]. ORGANIC ELECTRONICS,2019,72:1-5.

Yan, Lijia.,Qi, Maowei.,Li, Aiyuan.,Meng, Hong.,Zhao, Xingzhong.,...&Xu, Baomin.(2019).Investigating the single crystal OFET and photo-responsive characteristics based on an anthracene linked benzo[b]benzo[4,5]thieno[2,3-d]thiophene semiconductor.ORGANIC ELECTRONICS,72,1-5.

Yan, Lijia,et al."Investigating the single crystal OFET and photo-responsive characteristics based on an anthracene linked benzo[b]benzo[4,5]thieno[2,3-d]thiophene semiconductor".ORGANIC ELECTRONICS 72(2019):1-5.