Ultrahigh-sensitive optical temperature sensing based on quasi-thermalized green emissions from Er:ZnO
文献信息
Subrata Senapati, Karuna Kar Nanda
Fluorescence intensity ratio (FIR) based optical temperature sensors employ the variation of intensity ratio between two peaks, which are very close to each other. Here, we prepare Er doped ZnO microrods by a hydrothermal route and exploit them for FIR based temperature sensing. The Er:ZnO shows the band-to-band UV emission and broad defect emissions with small Er3+ related peaks upon excitation with a 355 nm laser, while only peaks corresponding to Er3+ transitions are observed with 532 nm laser excitation. The green emissions (2H11/2 â 4I15/2, 4S3/2 â 4I15/2) under 532 nm excitation are considered for temperature sensing performance as they possess a quasi-thermal equilibrium between them and the variation of intensity ratio with temperature follows a Boltzmann type distribution. The sensitivity obtained here is very high (3445/T2 Kâ1) compared to the reported Er3+ ion based temperature sensors and can be applied in a wide range of temperature (83â493 K). The value of sensitivity is found to be almost independent of the concentration of Er doping and is the highest reported for Er-doped materials.
相关文献
Data handling of complex GC–MS chromatograms: characterization of n-alkane distribution as chemical marker in organic input source identification
Maria Chiara Pietrogrande, Mattia Mercuriali, Luisa Pasti, Francesco Dondi
DOI: 10.1039/B815317E
Apparent ‘electrocatalytic’ activity of multiwalled carbon nanotubes in the detection of the anaesthetic halothane: occluded copper nanoparticles
Xuan Dai, Gregory G. Wildgoose, Richard G. Compton
DOI: 10.1039/B606197D
Water-compatible molecularly imprinted polymers for efficient direct injection on-line solid-phase extraction of ropivacaine and bupivacaine from human plasma
Zoe Cobb, Börje Sellergren, Lars I. Andersson
DOI: 10.1039/B711116A
Mutant polymerases capable of 2′ fluoro-modified nucleic acid synthesis and amplification with improved accuracy
Trevor A. Christensen, Kristi Y. Lee, Simone Z. P. Gottlieb, Mikayla B. Carrier, Aaron M. Leconte
DOI: 10.1039/D2CB00064D
A compact broadband cavity enhanced absorption spectrometer for detection of atmospheric NO2 using light emitting diodes
Justin M. Langridge, Stephen M. Ball, Roderic L. Jones
DOI: 10.1039/B605636A
Rapid cell mapping using nanoparticles and SERRS
Robert J. Stokes, Fiona McKenzie, Emma McFarlane, Alastair Ricketts, Laurence Tetley, Karen Faulds, James Alexander, Duncan Graham
DOI: 10.1039/B815117B
The 2′-hydroxy group of flavin mononucleotide influences the catalytic function and promiscuity of the flavoprotein iodotyrosine dehalogenase
Anton Kozyryev, Petrina A. Boucher, Carla M. Quiñones-Jurgensen, Steven E. Rokita
DOI: 10.1039/D3CB00094J
Amphiphilic nanoassemblies for the detection of peptides and proteins using fluorescence and mass spectrometry
Malar A. Azagarsamy, Andrea Gomez-Escudero, Volkan Yesilyurt, Richard W. Vachet, S. Thayumanavan
DOI: 10.1039/B818484D
Efficient synthesis and replication of diverse sequence libraries composed of biostable nucleic acid analogues
John R. D. Hervey, Niklas Freund, Gillian Houlihan, Gurpreet Dhaliwal, Philipp Holliger, Alexander I. Taylor
DOI: 10.1039/D2CB00035K
Subfemtomolar electrochemical detection of target DNA by catalytic enlargement of the hybridized gold nanoparticlelabels
Murielle Rochelet-Dequaire, Benoît Limoges, Pierre Brossier
DOI: 10.1039/B603963D
您可能还喜欢
4-[4-三氟甲基苯基]恶唑(CAS号:1126636-40-5)通常如何合成?
4-[4-三氟甲基苯基]恶唑通常通过将4-三氟甲基苯酚与异硫氰酸苯酯在有机溶剂中进行酯化反应合成。该反应可在无水条件下,使用适当的催化剂,如四丁基氢氧化铵,以提...
RockPhos Pd G3(CAS号:2009020-38-4)通常如何合成?
RockPhos Pd G3 通常通过钯催化偶联反应合成,使用配体 (2'-Amino-2-biphenylyl)(methanesulfonato-kappa...
1-哌啶甲酰胺(CAS号:2158-03-4)的市场或研究趋势如何?
1-哌啶甲酰胺作为有机合成中的重要中间体,其市场需求主要受医药、农药、染料等行业推动。近年来,随着新药开发和绿色化学的发展,该化合物的研究趋势集中在开发更高效、...
2-(二苯基膦基)乙胺(CAS号:4848-43-5)适用哪些法规指南?
2-(二苯基膦基)乙胺适用于多种法规指南,包括但不限于《全球化学品统一分类和标签制度》(GHS),欧盟《化学品注册、评估、授权和限制》法规(REACH),以及美...
如何储存间苯二甲酸二烯丙酯(CAS号:1087-21-4)?
间苯二甲酸二烯丙酯应储存在阴凉、干燥、通风良好的地方,远离火源和热源。储存容器应密封,避免光照和高温。储存温度应控制在25℃以下,相对湿度应低于80%。避免与其...
什么是间甲苯异硫代异氰酸酯(CAS号:621-30-7)?
间甲苯异硫代异氰酸酯是一种有机化合物,分子式为C7H7NO2S,具有刺激性气味。它是一种重要的有机合成中间体,在合成其他化合物时广泛应用。
在合成中是否有N-Boc-D-苯丙氨醇(CAS号:106454-69-7)的替代品?
在合成中,可以考虑使用N-Cbz-D-苯丙氨醇或N-Fmoc-D-苯丙氨醇作为替代品。这些化合物同样具有保护氨基的功能,且在合成过程中表现出良好的反应性能。
3-羟甲基-2-氧异丙基吡啶(CAS号:954240-50-7)的主要用途是什么?
3-羟甲基-2-氧异丙基吡啶主要用于有机合成领域,可以作为合成其他药物、农药或精细化学品的中间体。此外,它还可能在实验室研究中作为特定反应的前体或溶剂。
6-氨基-9-甲基嘌呤(CAS号:700-00-5)应用于哪些行业?
6-氨基-9-甲基嘌呤目前主要应用于医药行业,作为某些药物的中间体。此外,它还可能用于聚合物、传感器和半导体的某些领域,作为功能性单体或掺杂剂。
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














