Facile Semiconductor p–n Homojunction Nanowires with Strategic p-Type Doping Engineering Combined with Surface Reconstruction for Biosensing Applications

Liuan Li; Shi Fang; Wei Chen; Yueyue Li; Mohammad Fazel Vafadar; Danhao Wang; Yang Kang; Xin Liu; Yuanmin Luo; Kun Liang; Yiping Dang; Lei Zhao; Songrui Zhao; Zongzhi Yin; Haiding Sun

doi:10.1007/s40820-024-01394-5

Nano-Micro Letters (May 2024)

Facile Semiconductor p–n Homojunction Nanowires with Strategic p-Type Doping Engineering Combined with Surface Reconstruction for Biosensing Applications

Liuan Li,
Shi Fang,
Wei Chen,
Yueyue Li,
Mohammad Fazel Vafadar,
Danhao Wang,
Yang Kang,
Xin Liu,
Yuanmin Luo,
Kun Liang,
Yiping Dang,
Lei Zhao,
Songrui Zhao,
Zongzhi Yin,
Haiding Sun

Affiliations

Liuan Li: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China
Shi Fang: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China
Wei Chen: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China
Yueyue Li: Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University
Mohammad Fazel Vafadar: Department of Electrical and Computer Engineering, McGill University
Danhao Wang: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China
Yang Kang: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China
Xin Liu: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China
Yuanmin Luo: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China
Kun Liang: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China
Yiping Dang: Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Lei Zhao: Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Songrui Zhao: Department of Electrical and Computer Engineering, McGill University
Zongzhi Yin: Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University
Haiding Sun: iGaN Laboratory, School of Microelectronics, University of Science and Technology of China

DOI: https://doi.org/10.1007/s40820-024-01394-5
Journal volume & issue: Vol. 16, no. 1
pp. 1 – 16

Abstract

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Highlights A novel photoelectrochemical (PEC) photosensor composed of GaN nanowire-on-Si platform demonstrates record-high responsivity of 247.8 mA W−1 with ultra-stable operation characteristics. Strategic internal and external band structure engineering of semiconductor nanowires promotes efficient PEC reaction via controlling carrier dynamics while preserving nanowires from material degradation. The glucose sensing system is constructed to successfully analyze blood glucose levels in real human serum samples, featuring a high sensitivity of 0.173 µA µM−1 cm−2 and a low detection limit of 0.07 µM.

Published in Nano-Micro Letters

ISSN: 2311-6706 (Print); 2150-5551 (Online)
Publisher: SpringerOpen
Country of publisher: Germany
LCC subjects: Technology
Website: http://www.springer.com/40820

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