1
|
Zhang X, Li H, Wang G, Wang S, Li J, Song J, Jin M, Zhou JY, Chang P, Pan XJ. Ag-modified enhance the performances of ZnO@CFs based omnidirectional photoelectrochemical ultraviolet detectors. Nanotechnology 2024. [PMID: 38701762 DOI: 10.1088/1361-6528/ad4711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
There are several prospective applications for omnidirectional ultraviolet (UV) detectors and underwater detection detectors in optical systems and optical fields. In this work, ZnO nanorods arrays were grown on carbon fibers (CFs). An appropriate amount of Ag nanoparticles (NPs) was deposited on the surface of ZnO nanorods by photochemical deposition. This improved the performance of photoelectrochemical (PEC) based UV detectors. Under 365 nm and 10 mW cm-2 UV irradiation, the photocurrent density of the 30s-Ag/ZnO@CFs based PEC UV detector can reach 1.28 mA cm-2, which is about 7 times that of the ZnO@CFs based PEC UV detector, and the rising time is shortened from 0.17 s to 0.10 s. The reason is that increased absorption of ultraviolet light induced by the localized surface plasmon resonance. In addition, the detector exhibits a good flexibility and remains flexible after hundreds of bends and twists. Moreover, the detector is responsive in the range of rotation angle from 0 to 360°. It provides an insight to improve the photoelectric performance and underwater omnidirectional detection ability of the PEC UV detector.
Collapse
Affiliation(s)
- Xinmiao Zhang
- School of Physical Science and Technology, Lanzhou University, 222 South Tianshui Road, Lanzhou, Gansu, 730000, CHINA
| | - Hongye Li
- Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, P.R.China, Lanzhou, Gansu, 730000, CHINA
| | - Gang Wang
- Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, P.R.China, Lanzhou, 730000, CHINA
| | - Shimin Wang
- Lanzhou University, Gansu, Lanzhou, Gansu, 730000, CHINA
| | - Jiang Li
- School of Physical Science and Technology, Lanzhou University, 222 South Tianshui Road, Lanzhou, Gansu, 730000, CHINA
| | - Jianqiao Song
- Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, P.R.China, Lanzhou, 730000, CHINA
| | - Mengjing Jin
- Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, P.R.China, Lanzhou, 730000, CHINA
| | - Jin Yuan Zhou
- School of Physical Science and Technology, Lanzhou University, 222 South Tianshui Road, Lanzhou, Gansu, 730000, CHINA
| | - Peng Chang
- Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, P.R.China, Lanzhou, 730000, CHINA
| | - Xiao Jun Pan
- School of Physical Science and Technology, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, P.R.China, Lanzhou, Gansu, 730030, CHINA
| |
Collapse
|
2
|
Xu X, Wang Y, Ji Y, Chen Z, Lu C, Xu X, Hua D. High-Performance Flexible Broadband Photoelectrochemical Photodetector Based on Molybdenum Telluride. Small 2024:e2308590. [PMID: 38295096 DOI: 10.1002/smll.202308590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/28/2023] [Indexed: 02/02/2024]
Abstract
Flexible broadband photodetectors are desired but challenging to be fabricated for next-generation wearable intelligent optoelectronic devices. Considering the narrow bandgap and strong light absorption, molybdenum telluride (MoTe2 ) based photoelectrochemical photodetectors are successfully assembled by liquid phase exfoliation accompanied with the electrophoretic deposited method. This MoTe2 -based photodetector shows a broadband detection in ultraviolet-near-infrared band, long-term stability within 18000 s, and fast response in millisecond-level (response time≈19 ms, recovery time≈26 ms). More importantly, even though the MoTe2 photodetector is bent and twisted at a high degree for several hundred times, it still shows excellent flexibility with stable on-off switching characteristics. Additionally, this photodetector displays a good response for rotation angles in the range from 0° to 360°, and the extracted Iph maintain almost the same value approximately 0.97 µA cm-2 , suggesting an omnidirectional detection capability. This work demonstrates the proposed flexible photoanode shows a great potential in future broadband omnidirectional detection systems.
Collapse
Affiliation(s)
- Xiang Xu
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Ying Wang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Yeqin Ji
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Zhijian Chen
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Chunhui Lu
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics and Photon Technology, Northwest University, Xi'an, 710069, China
| | - Xinlong Xu
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics and Photon Technology, Northwest University, Xi'an, 710069, China
| | - Dengxin Hua
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048, China
| |
Collapse
|