Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Transition metal dichalcogenides, including WSe, have gained significant attention as promising nanomaterials for various applications due to their unique properties. In this study, we explore the temperature-dependent photoluminescent properties of WSe nanomaterials to investigate their potential as luminescent nanothermometers. We compare the performance of WSe quantum dots and nanorods synthesized using sonication synthesis and hot injection methods. Our results show a distinct temperature dependence of the photoluminescence, and conventional ratiometric luminescence thermometry demonstrates comparable relative thermal sensitivity (0.68-0.80% K) and temperature uncertainty (1.3-1.5 K), irrespective of the morphology of the nanomaterials. By applying multiple linear regression to WSe quantum dots, we achieve enhanced thermal sensitivity (30% K) and reduced temperature uncertainty (0.1 K), highlighting the potential of WSe as a versatile nanothermometer for microfluidics, nanofluidics, and biomedical assays.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d4nr00014e | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Polarization-Sensitive Photodetector Based on WSe/AsP/WS Heterojunction.
J Phys Chem Lett
September 2025
School of Optoelectronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, P.R. China.
The rapid advancements in optoelectronics and their widespread applications have spurred the development of high-performance photodetectors. This study presents a dual-van der Waals heterostructure photodetector, composed of WSe, AsP, and WS. It demonstrates outstanding polarization-sensitive light detection without external bias, with a sensitivity of 487 mA/W, a detection capability of 6.
View Article and Find Full Text PDFCompetition between excitonic insulators and quantum Hall states in correlated electron-hole bilayers.
Nat Mater
August 2025
Department of Physics, University of California, Berkeley, CA, USA.
Excitonic insulators represent a unique quantum phase of matter that enables the study of exotic quantum bosonic states. Strongly coupled electron-hole bilayers, which host stable dipolar exciton fluids with an exciton density that can be adjusted electrostatically, offer an ideal platform to investigate correlated excitonic insulators. On the basis of electron-hole bilayers made of MoSe/hexagonal boron nitride/WSe heterostructures, here we study the behaviour of excitonic insulators in a perpendicular magnetic field.
View Article and Find Full Text PDFInterplay of Energy and Charge Transfer in WSe/CrSBr Heterostructures.
Nano Lett
September 2025
Physics Department, Federal University of São Carlos, 13565-905 São Carlos, SP Brazil.
van der Waals heterostructures (vdWHs) composed of transition-metal dichalcogenides (TMDs) and layered magnetic semiconductors offer great opportunities to manipulate the exciton and valley properties of TMDs. Here, we present magneto-photoluminescence (PL) studies in a WSe monolayer (ML) on a CrSBr crystal, an anisotropic layered antiferromagnetic semiconductor. Our results reveal the unique behavior of each of the ML-WSe PL peaks under a magnetic field that is distinct from the pristine case.
View Article and Find Full Text PDFUnsupervised Clustering of DNA Transmission Footprints Using MoS/WSe Heterojunction.
ACS Appl Mater Interfaces
September 2025
Department of Chemistry, Indian Institute of Technology (IIT) Indore, Indore, Madhya Pradesh 453552, India.
Quantum transport-based DNA sequencing is emerging as a promising technique in genetic analysis, offering fast, precise, and scalable decoding of genetic information, holding significant potential for applications in human biology and personalized medicine. Given the recent developments in supervised machine learning-coupled nanopore and nanochannel technology, predicting and classifying the labeled DNA nucleotides is now feasible with precision and accuracy. However, the next challenge arises as conventional analysis methods struggle to handle the vast amount of data generated by high-throughput DNA sequencing, particularly when dealing with complex spatial patterns in quantum transport readouts.
View Article and Find Full Text PDFLippmann-Schwinger Approach for Accurate Photoelectron Wave Functions and Angle-Resolved Photoemission Spectra from First Principles.
Phys Rev Lett
August 2025
Seoul National University, Seoul National University, Department of Physics and Astronomy, Seoul 08826, Korea and Center for Theoretical Physics, Seoul 08826, Korea.
We present a conceptually simple and technically straightforward method for calculating photoelectron wave functions that is easily integrable with standard wave-function-based density-functional-theory packages. Our method is based on the Lippmann-Schwinger equation, naturally incorporating the boundary condition that the final photoelectron state must satisfy. The calculated results are in good agreement with the measured photon-energy and polarization dependence of the angle-resolved photoemission spectroscopy (ARPES) of graphene, the photon-energy-dependent evolution of the so-called dark corridor arising from the pseudospin, and WSe_{2}, the circular dichroism reflecting the hidden orbital polarization.
View Article and Find Full Text PDF