Simple synthesis and photoelectric properties of Cu2Te nanotubes. (18th January 2023)

• Record Type: Journal Article
• Authors: Xu, Yonghong; Wang, Xinqing; Bi, Yanyu; Zhang, Linhui; Zhong, Binnian
• Is Part Of: New journal of chemistry. Volume 47:Number 6(2023)
• Page Start: 3010
• Page End: 3016
• Publication Date: 2023-01-18
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d2nj05180j
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : We report a simple method for the synthesis of Cu2 Te NTs under mild conditions without surfactant. The product has good crystallinity and uniform size. The photoelectric response time is significantly faster than that reported in previous studies for other tellurides. Abstract : In this study, Cu2 Te nanotubes (NTs) were successfully synthesized by the solvothermal method without surfactant under mild conditions with ethylene glycol as the solvent, NaOH as the alkaline environment provider, and green non-toxic l -ascorbic acid as the reductant. The optimal conditions for the synthesis of Cu2 Te NTs were determined to be 120 °C, 1.0 g NaOH, and 5.0 mL l -ascorbic acid. Under 980 nm pulse incident infrared light, 120 mW laser power, and +0.01 V bias voltage, the Cu2 Te NT-based photodetector shows a photocurrent of 1.393 μA and a responsivity of 1.05 μA W −1, which shows an obvious photoelectric signal and relatively good stability. The rise time and decay time of the photodetector are 7.8 s and 9.3 s, respectively, and the response time is much faster than that of other telluride nanomaterial photodetectors reported recently.