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High-Performance Organic Field-Effect Transistors of Liquid Crystalline Organic Semiconductor by Laser Mapping Annealing

Authors :
Luying Huang
Fenghua Liu
Jiachen Bao
Xiaoman Li
Weiping Wu
Source :
Materials, Vol 17, Iss 6, p 1395 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

Organic semiconductors (OSCs), especially small molecule semiconductors, have received increasing attention due to their good designability and variability. Phase transitions and interfacial properties have a decisive influence on device performance. Here, 2-Dodecyl-7-phenyl[1]benzothieno[3,2-b][1]benzothiophene (Ph-BTBT-12) devices are treated with low-power laser annealing, which is able to avoid the influence of the dewetting effect on the hole mobility of organic semiconductor materials. Ultraviolet ozone treatment and self-assembled monolayer treatment can improve the performance and stability of the device. Moreover, after low-temperature thermal annealing, the hole mobility of the device can even reach as high as 4.80 cm2 V−1 s−1, and we tested the optical response of the device to the ultraviolet wavelength and found that its maximum optical responsivity was 8.2 AW−1.

Details

Language :
English
ISSN :
19961944
Volume :
17
Issue :
6
Database :
Directory of Open Access Journals
Journal :
Materials
Publication Type :
Academic Journal
Accession number :
edsdoj.501c71cd94774d1c89471d136b800914
Document Type :
article
Full Text :
https://doi.org/10.3390/ma17061395