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Flexible hydroelectric generators (HEGs) are promising self‐powered devices that spontaneously derive electrical power from moisture. However, achieving the desired compatibility between a continuous operating voltage and superior current density remains a significant challenge. Herein, a textile‐based van der Waals heterostructure is rationally designed between conductive 1T phase tungsten disulfide@carbonized...
Bismuth oxyselenide (Bi2O2Se) has emerged as a promising candidate for electronic and optoelectronic applications due to its outstanding electron mobility and ambient stability. However, high dark current and relatively slow photoresponse that originate from high charge carrier concentration as well as bolometric effect in Bi2O2Se inhibit further improvement of Bi2O2Se based photodetectors. Here,...
Ag nanoparticles (NPs) modified graphene nanoribbons (GNRs) are proposed to function as the high‐performance shared substrates for surface‐enhanced Raman and infrared absorption spectroscopy (SERS and SEIRAS). This is realized by modulating the localized plasmonic resonances of Ag NPs in visible region and GNRs in mid‐infrared region simultaneously, so as to selectively employ each resonance to acquire...
In article number 2000228, Luying Li, Tianyou Zhai, and co‐workers prepare large‐size BiOCl flakes with thickness down to a monolayer via salt‐assisted chemical vapor deposition. The 2D BiOCl photodetectors exhibit high responsivity throughout the solar‐blind range at room and high temperatures. The success in fabrication of atomically thin BiOCl photodetectors opens opportunities for their potential...
2D wide‐bandgap semiconductors demonstrate great potential in fabricating solar‐blind ultraviolet (SBUV) photodetectors. However, the low responsivity of 2D solar‐blind photodetectors still limits their practical applications. Here, high‐responsivity solar‐blind photodetectors are achieved based on 2D bismuth oxychloride (BiOCl) flakes. The 2D BiOCl photodetectors exhibit a responsivity up to 35.7...
In article number 1902755, Xuemei Wang, Hui Jiang, and co‐workers demonstrate the aggregation of slight‐hollow gold silver nanocages by glutathione for both enhancement of photoacoustic signals at tumor sites and near infrared photothermal therapy. This work offers a new multifunctional strategy for efficient tumor theranostics.
Gold–silver nanocages (GSNCs) are widely used in cancer imaging and therapy due to excellent biocompatibility, internal hollow structures, and tunable optical properties. However, their possible responses toward the tumor microenvironment are still not well understood. In this study, it is demonstrated that a kind of relatively small sized (35 nm) and partially hollow GSNCs (absorbance centered at...
Infrared (IR) photodetectors are finding diverse applications in imaging, information communication, military, etc. 2D metal chalcogenides (2DMCs) have attracted increasing interest in view of their unique structures and extraordinary physical properties. They have demonstrated outstanding IR detection performance including high responsivity and detectivity, high on/off ratio, fast response rate,...
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