Year: 2025
Type: article
Abstract: Fire rescue robots equipped with solar-blind UV photodetectors can significantly improve operational safety and efficiency in hazardous environments involving high temperatures, explosions, toxic gases, and smoke. However, conventional rigid photodetectors cannot meet the flexibility requirements for seamless integration with robotic systems. This study presents a breakthrough in developing stretchable solar-blind UV photodetectors through an innovative combination of electrospinning and high-temperature phase transformation. Our approach enables high-yield production of self-supporting β-Ga₂O₃ nanowires with excellent solar-blind UV absorption. The fabricated metal-semiconductor-metal (MSM) photodetector demonstrates outstanding performance, including a remarkable photo-to-dark current ratio of 147.2 and responsivity of 22.5 mA/W. More importantly, the device exhibits unprecedented mechanical stability, with merely 3.4% photocurrent variation under 50% tensile strain and only 3.9% degradation after 500 strain cycles. We further demonstrate the practical applicability of this technology by fabricating a functional photodetector array capable of solar-blind UV imaging, paving the way for next-generation intelligent firefighting systems.
Source: Scientific Reports
Authors: Wuxu Zhang, Ziyin Xiang, Tengfei Ma, Baoru Bian, Jinyun Liu, Yuanzhao Wu, Yiwei Liu, Jie Shang, Run-Wei Li
Language: English
Topic: Ga2O3 and related materials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Awards: G1118911357, G1381819005, G1657366047, G1788840522, G1854004636, G199831629, G2153453404, G2747921999, G2950026750, G3204896003, G3211879242, G3494065576, G3765172383, 柔性自旋阀磁传感材料及相关物理问题研究, G4161974257, G4241420002, G4978679722, G500630315, G5033782991, 柔性液态金属-磁性复合薄膜的制备及磁相关输运性质研究, G5319183517, G648444187, G6575991761, G8466348434, G899990266
OpenAlex ID: W4410526363