Near‐Infrared‐Excited Multicolor Afterglow in Carbon Dots‐Based Room‐Temperature Afterglow Materials

2021 ◽  
Author(s):  
Yihao Zheng ◽  
Haopeng Wei ◽  
Ping Liang ◽  
Xiaokai Xu ◽  
Xingcai Zhang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Room Temperature ◽  
Near Infrared

Near‐Infrared‐Excited Multicolor Afterglow in Carbon Dots‐Based Room‐Temperature Afterglow Materials

2021 ◽  
Author(s):  
Yihao Zheng ◽  
Haopeng Wei ◽  
Ping Liang ◽  
Xiaokai Xu ◽  
Xingcai Zhang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Room Temperature ◽  
Near Infrared

scholarly journals A Facile Co-crystallization Approach to Fabricate Two-component Carbon Dots Composites Showing Time-Dependent Evolutive Room Temperature Phosphorescence Colors

2021 ◽  
Author(s):  
Jian Qu ◽  
Xin Zhang ◽  
Zhong-Jie Wang ◽  
Shuyan Zhang ◽  
Yejian Yu ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Room Temperature ◽  
Data Encryption ◽  
Time Dependent ◽  
Security Level ◽  
Room Temperature Phosphorescence ◽  
Two Component ◽  
Carbon Based

Time-dependent evolutive afterglow materials can increase the security level by providing additional encryption modes in anti-counterfeiting and data encryption. The design of carbon-based materials with dynamic afterglow colors is attractive...

Formation Mechanism and Chirality Evolution of Chiral Carbon Dots Prepared via Radical Assisted Synthesis at Room Temperature

Nanoscale ◽  
2021 ◽  
Author(s):  
Lorenzo Branzi ◽  
Giacomo Lucchini ◽  
Elti Cattaruzza ◽  
Nicola Pinna ◽  
Alvise Benedetti ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Formation Mechanism ◽  
Carbon Dots ◽  
Room Temperature ◽  
Chiral Carbon

We report on a Cu(II) catalyzed process for the production of cysteine based chiral carbon dots, the process does not require any thermal treatment and the carbon dots formation is...

Room-Temperature Near-Infrared Metastable Species Measured by Phase-Sensitive Lock-in and Fourier Transform Techniques

1998 ◽  
Vol 45 (4) ◽  
pp. 503-508 ◽  
Author(s):  
Pi-Tai Chou ◽  
Youn-Chan Chen ◽  
Shu-Juan Chen ◽  
Min-Zen Lee ◽  
Ching-Yen Wei ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Room Temperature ◽  
Near Infrared ◽  
Phase Sensitive ◽  
Lock In

scholarly journals A fast response, self-powered and room temperature near infrared-terahertz photodetector based on a MAPbI3/PEDOT:PSS composite

2020 ◽  
Vol 8 (35) ◽  
pp. 12148-12154 ◽  
Author(s):  
Yifan Li ◽  
Yating Zhang ◽  
Tengteng Li ◽  
Xin Tang ◽  
Mengyao Li ◽  
...  
Keyword(s):  
Response Time ◽  
Room Temperature ◽  
Near Infrared ◽  
Fast Response ◽  
Rapid Response ◽  
Self Powered

A novel self-powered NIR and THz PTE PD based on a (MAPbI3/PEDOT:PSS) composite with a rapid response time of 28 μs.

scholarly journals Spectroscopic Studies of Er3+-Yb3+ Codoped Multicomposition Tellurite Oxide Glass

2014 ◽  
Vol 895 ◽  
pp. 323-333 ◽  
Author(s):  
Sharudin Omar Baki ◽  
L.S. Tan ◽  
C.S. Kan ◽  
Halimah Mohamed Kamari ◽  
A.S.M. Noor ◽  
...  
Keyword(s):  
Room Temperature ◽  
Near Infrared ◽  
Transition Probabilities ◽  
Branching Ratios ◽  
Spectroscopic Studies ◽  
Oxide Glass ◽  
Near Infrared Spectra ◽  
Intensity Parameters ◽  
Measured Absorption

Multicomposition of Er3+-Yb3+codoped tellurite oxide, TeO2-ZnO-PbO-TiO2-Na2O glass has been investigated. Detailed spectroscopic study of the Judd-Ofelt analysis has been performed from the measured absorption spectrum in order to obtain the intensity parameters Ωt(t=2, 4, 6). The calculated Ωtvalues were then utilized in the determination of transition probabilities, radiative lifetimes and branching ratios of the Er3+transitions between theJ(upper)-J(lower) manifolds. Both visible upconversion and near-infrared spectra were characterized under the 980 nm laser diode excitation at room temperature.

Pair‐Emission‐Induced Near‐Infrared Lasing from Ceramic Ga:LaCrO 3 Microcrystals at Room Temperature

2021 ◽  
pp. 2000519
Author(s):  
T. R. Rajalekshmi ◽  
Tejendra Dixit ◽  
M. S. Ramachandra Rao ◽  
K. Sethupathi
Keyword(s):  
Room Temperature ◽  
Near Infrared
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