High-Performance Organic Phototransistors Based on Single-Crystalline Microwire Arrays

被引:1
作者
Qiu, Yuchen [1 ]
Zhang, Yu [2 ]
Su, Huixue [3 ]
Li, Xinyi [2 ]
Wei, Yanjie [2 ]
Wu, Yuchen [3 ,4 ,5 ]
Dong, Meiqiu [2 ]
Wei, Xiao [2 ]
Gao, Hanfei [4 ]
机构
[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China
[2] Ji Hua Lab, Foshan 528200, Guangdong, Peoples R China
[3] Chinese Acad Sci, Key Lab Bioinspired Mat & Interfacial Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China
[4] Univ Sci & Technol China, Suzhou Inst Adv Res, Suzhou 215123, Jiangsu, Peoples R China
[5] Henan Univ, Natl & Local Joint Engn Res Ctr High Efficiency Di, Collaborat Innovat Ctr Nano Funct Mat & Applicat, Key Lab Special Funct Mat,Minist Educ, Kaifeng 475004, Henan, Peoples R China
来源
ADVANCED SENSOR RESEARCH | 2024年 / 3卷 / 05期
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
capillary bridges; microwire arrays; organic phototransistors; organic single crystals; SEMICONDUCTORS;
D O I
10.1002/adsr.202300169
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
High-performance organic phototransistors (OPTs) have attracted considerable attention owing to their high photoresponse and low-cost solution-processing manufacturing. To meet the increasing demand for integrated optoelectronic circuits, organic single-crystalline micro-/nanowire arrays for OPTs construction are prominently anticipated. However, the manufacturing and patterning of organic single-crystalline arrays have hit a bottleneck due to the uncontrollable dewetting dynamics. In this work, a capillary-bridge lithography strategy is proposed to guide ordered nucleation and unidirectional dewetting of microfluid, thus enabling the large-scale preparation of highly aligned organic single-crystalline microwire arrays. Taking advantage of efficient carrier transport, a competitive average field-effect hole mobility (mu) of 6.64 cm2 V-1 s-1 is obtained, and the high-throughput one-dimensional (1D) arrays based OPTs also exhibit excellent optoelectrical performance with photosensitivity (P) of 1.36 x 106, responsivity (R) of 3.18 x 104 A W-1, and specific detectivity (D*) of 9.22 x 1014 Jones. This work provides a guide for the designing and patterning of high-throughput OPTs toward multifunctional integrated optoelectronics. Organic single-crystalline microwire arrays with highly aligned, controlled position, and high crystallinity are realized by the capillary-bridge lithography strategy. The high-quality microarrays exhibit high average field-effect hole mobility up to 6.64 cm2 V-1 s-1. Microarray-based phototransistors show excellent performance with a responsivity of 3.18 x 104 A W-1 and a specific detectivity of 9.22 x 1014 Jones. image
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页数:8
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