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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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