期刊
ADVANCED OPTICAL MATERIALS
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.202201685
关键词
gold nanoparticles; indium selenide; photoelectrochemistry; sunlight harvesting; surface plasmon resonance
资金
- China Postdoctoral Science Foundation [2020TQ0204, 2020M682904]
- National Natural Science Foundation of China [12274359, U21A20511]
- Natural Science Foundation of Guangdong Province [2019A1515010311, 2019A1515010007, 2021A1515012143]
- Shenzhen Science and Technology Innovation Commission [JCYJ20210324115601005, JCYJ20180507184656626, JCYJ20190808175605495]
- Suzhou key industrial technology innovation project [SYG201921]
- Scientific Research Fund of Hunan Provincial Education Department [18A059, 21B0128]
- Hunan Provincial Innovation Foundation for Postgraduate [CX20200560, XDCX2020B093]
- Guangdong Innovation Platform of Translational Research for Cerebrovascular Diseases
- Research Fund of Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology [2020B1212030010]
- Instrumental Analysis Center of Shenzhen University (Xili Campus)
In this study, surface engineering of 2D InSe with Au species has been performed to achieve lower bandgap, efficient sunlight harvesting, and improved electron transport, leading to enhanced performance of flexible photoelectrochemical detectors. This surface engineering strategy provides a general approach for tailoring 2D materials for wearable photoelectronic devices in the future.
Two-dimensional (2D) materials have aroused widespread interest due to the high potential in modern photoelectronics. The strategy for improving the stability of 2D materials in the air, reinforcing formation, and transport of photoexcited carriers would open up promising routes toward flexible facilities. In this paper, surface engineering is executed on 2D InSe by decorating Au species for a lower bandgap allowing for efficient sunlight harvesting and decreased barrier with the substrate for improved electron transport. Moreover, hot electrons produced by Au nanoparticles under light irradiation pour into InSe for boosting photocurrent. Au nanoparticles also serve as conducting bridges in InSe-Au photoanode, where the contact resistance is two orders of magnitude lower than that of InSe electrode. Compared with InSe and other 2D counterparts, InSe-Au flexible photoelectrochemical detectors behave with outstanding performances under sunlight irradiation, including responsibility 55.4 mu A W-1, detectivity 4.18 x 10(9) Jones. Importantly, the working electrode shows excellent ON/OFF switching stability after bending for 5000 times (3 months of storage in the air). This surface engineering provides a general strategy to tailor 2D materials for wearable photoelectronic devices in the future.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据