Layer-structured two-dimensional nanomaterials are a family of materials with strong covalent bonding within layers and weak van der Waals interaction between layers, whose vertical thickness can be thinned down to few nanometer and even single atomic layer. Bismuth chalcogenides are examples of such two-dimensional materials. Here, we present our discovery of significant enhancement of light transmission through thin nanoplates of layered bismuth chalcogenides by intercalation of copper atoms, which is on the contrary to most bulk materials in which doping reduces the light transmission. This surprising behaviour results from two mechanisms: chemical tuning effect of substantial reduction of material absorption after intercalation and nanophotonic effect of zero-wave anti-reflection unique to ultra-small thickness of nanoplates. We demonstrate that the synergy of these two effects in two-dimensional nanostructures can be exploited for various optoelectronic applications including transparent electrode. The intercalation mechanism allows potential dynamic tuning capability.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1038/ncomms6670 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Enhancement of bismuth tungstate perovskite photoelectrical performance using elemental co-doping and construction of ternary heterojunction for sensitive detection of Trenbolone.
Bioelectrochemistry
December 2024
School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China. Electronic address:
Bismuth tungstate perovskite has been identified as a promising photoelectric material. Nevertheless, the wide band gap of bismuth tungstate leads to short-wavelength absorption of a single material with an attenuated photocurrent response, hindering its realization in biosensing applications. In this study, F, S co-doped BiWO was synthesized by heat treatment and combined with SnS and CdS to form a ternary heterojunction composite.
View Article and Find Full Text PDFAnionic Doping in Layered Transition Metal Chalcogenides for Robust Lithium-Sulfur Batteries.
Angew Chem Int Ed Engl
December 2024
Catalonia Institute for Energy Research, Jardins de les dones de negre 1, Barcelona, SPAIN.
Lithium-sulfur batteries (LSBs) are among the most promising next-generation energy storage technologies. However, a slow Li-S reaction kinetics at the LSB cathode limit their energy and power densities. To address these challenges, this study introduces an anionic-doped transition metal chalcogenide as an effective catalyst to accelerate the Li-S reaction.
View Article and Find Full Text PDFPhase diagram for the quasi-binary thallium(I) selenide-bismuth(III) telluride system.
Sci Rep
November 2024
Department of Basic Chemical Sciences, Faculty of Pharmacy, Wrocław Medical University, Borowska 211, 50-556, Wrocław, Poland.
The phase diagram for the quasi-binary Tl2Se-Bi2Te3 system has been established based on the results of phase studies by differential thermal analysis (DTA) and X-ray diffraction (XRD). The diagram for the title system presented in this paper has been compared with that previously published by other authors. As a result of the research, a significant correction of the former phase diagram was made, because it was found that the components of the studied system formed three new chemical compounds.
View Article and Find Full Text PDFDesign of a new process for the stabilization of FeS-BiS hybrid nanostructure and its application as a field emitter.
Nanoscale
December 2024
Institute of Nano Science & Technology, Knowledge City, Sector 81, Mohali, Punjab-140306, India.
The relentless pursuit for technological advancement has fuelled intensive research into nanoarchitectures as fundamental components of various devices. One-dimensional (1-D) nanomaterials, including nanorods, nanowires, and nanotubes, have garnered significant attention due to their distinctive catalytic, optical, and electronic properties. Metal chalcogenides have emerged as promising candidates for diverse applications ranging from sensing devices to solar cells, particularly bismuth sulphide (BiS).
View Article and Find Full Text PDFBoosting the Charge Storage Capability of BiTeO Cathode Using Iodide Ions in Aqueous Zinc-Based Batteries System.
Small
October 2024
Hunan Collaborative Innovation Center of Environmental and Energy Photocatalysis, Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha, Hunan, 410022, P. R. China.
As insertion-type cathode materials of aqueous Zn-based batteries (ABs), bismuth chalcogenides/oxychalcogenides exhibits relatively limited capacities in ZnSO baseline electrolyte. This work finds that BiTeO (BTO) cathode with pre-added I electrolyte additive can simultaneously achieve conversion and insertion chemistries, which enables aqueous BTO-Zn batteries to deliver an extraordinary electrochemical performance. As shown in the experiment results, the BTO cathode showcases an ultrahigh specific capacity of 534.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!