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Zhang M, Liu Y, Guo F, Zhang B, Hu B, Li S, Yu W, Hao L. High-Performance Flexible Broadband Photothermoelectric Photodetectors Based on Tellurium Films. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6152-6161. [PMID: 38270102 DOI: 10.1021/acsami.3c17933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Mid- and far-infrared photodetectors that can operate at room temperature are essential for both civil and military applications. However, the widespread use of mid-to-far-infrared photonic technology faces challenges due to the need for low-temperature cooling of existing commercial semiconductors and the limited optical absorption efficiency of two-dimensional materials. We have utilized the photothermoelectric effect to fabricate a self-powered, broadband, and high-performance photodetector based on a one-dimensional tellurium nanorod array film. The device surpasses energy band gap limitations, functioning even at wavelengths up to approximately 10,600 nm. In particular, the detectivity of the device can reach 4.8 × 109 Jones at 4060 nm under room-temperature conditions, which is an order of magnitude higher than that of commercially available photodetectors. It demonstrates fast response and recovery times of 8.3 and 8.8 ms. Furthermore, the device demonstrates outstanding flexibility withstanding over 300 bending cycles and environmental stability. These results suggest a viable approach for designing and developing high-performance, room-temperature, wearable optoelectronic devices.
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Affiliation(s)
- Mingcong Zhang
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Yunjie Liu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Fuhai Guo
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Bo Zhang
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Bing Hu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Siqi Li
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Weizhuo Yu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Lanzhong Hao
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
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