Observations of unusual temperature dependent photoluminescence anti-quenching in two-dimensional nanosheets of ZnS/ZnO composites and polarization dependent photoluminescence enhancement in fungi-like ZnO nanostructures

2014 ◽  
Vol 115 (22) ◽  
pp. 224306 ◽  
Author(s):  
A. K. Kole ◽  
P. Kumbhakar ◽  
T. Ganguly
Keyword(s):  
Two Dimensional ◽  
Zno Nanostructures ◽  
Temperature Dependent ◽  
Photoluminescence Enhancement ◽  
Temperature Dependent Photoluminescence

Temperature-dependent ultraviolet photoluminescence in hierarchical Zn, ZnO and ZnO/Zn nanostructures

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13385-13396 ◽  
Author(s):  
Han-Sheng Chou ◽  
Kai-Di Yang ◽  
Sheng-Hong Xiao ◽  
Ranjit A. Patil ◽  
Chien-Chih Lai ◽  
...  
Keyword(s):  
Thermal Quenching ◽  
Two Dimensional ◽  
Zno Nanostructures ◽  
Temperature Dependent ◽  
Photoluminescence Enhancement

The temperature-dependent effects on the ultraviolet photoluminescence enhancement, blueshift, thermal quenching of the two-dimensional Zn nanosheets, 2D-hierarchical ZnO nanostructures, and 2D-hierarchical ZnO/Zn nanostructures are presented.

Temperature-Dependent Photoluminescence and Energy-Transfer Dynamics in Mn2+-Doped (C4H9NH3)2PbBr4 Two-Dimensional (2D) Layered Perovskite

2019 ◽  
Vol 123 (8) ◽  
pp. 4739-4748 ◽  
Author(s):  
Rangarajan Bakthavatsalam ◽  
Anupam Biswas ◽  
Madhu Chakali ◽  
Prakriti Ranjan Bangal ◽  
Bhushan P. Kore ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Layered Perovskite ◽  
Two Dimensional ◽  
Temperature Dependent ◽  
Temperature Dependent Photoluminescence

Straining effects in MoS2 monolayer on nanostructured substrates: temperature-dependent photoluminescence and exciton dynamics

Nanoscale ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 5717-5724 ◽  
Author(s):  
Yaowu Hu ◽  
Feng Zhang ◽  
Michael Titze ◽  
Biwei Deng ◽  
Hebin Li ◽  
...  
Keyword(s):  
Optical Properties ◽  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Strain Engineering ◽  
Two Dimensional ◽  
Temperature Dependent ◽  
Exciton Dynamics ◽  
Mos2 Monolayer ◽  
Metal Dichalcogenides ◽  
Temperature Dependent Photoluminescence

Strain-engineering of two-dimensional (2D) transition metal dichalcogenides (TMDs) has great potential to alter their electronic and optical properties.

Growth and Optical Properties of ZnO Low-Dimensional Nanostructures

2008 ◽  
Vol 8 (3) ◽  
pp. 1101-1109 ◽  
Author(s):  
Yichun Liu ◽  
Yanhong Tong
Keyword(s):  
Optical Properties ◽  
Room Temperature ◽  
Two Dimensions ◽  
Zno Nanostructures ◽  
Photoluminescence Spectra ◽  
Temperature Dependent ◽  
Room Temperature Photoluminescence ◽  
Low Dimensional ◽  
Low Temperature Photoluminescence ◽  
Temperature Dependent Photoluminescence

Recent studies on the growth of ZnO nanostructures and their optical properties were reviewed. Using different methods, a variety of ZnO nanostructures, including quantum dots nanotowers, nanotubes, nanorods, nanowires, and nanosheets, displaying zero, one, and two dimensions, have been synthesized. The growth of ZnO low-dimensional nanostructures has been demonstrated. Their optical properties have been studied by means of room-temperature photoluminescence spectra, low-temperature photoluminescence spectra, temperature-dependent photoluminescence spectra, and pressure-dependent photoluminescence spectra. The optical properties can be adjusted by the surface features of ZnO low-dimensional nanostructures. The strong exciton emission has been observed in some nanostructures, showing promising potential in nanodevice applications.

Combustion Synthesis and Temperature Dependent Photoluminescence of Nanocrystalline Y2Zr2O7: Eu3+

2009 ◽  
Vol 24 (2) ◽  
pp. 239-242 ◽  
Author(s):  
Dian-Yuan WANG ◽  
Qing-Kai WANG ◽  
Zhang-Yong CHANG ◽  
Yan-Yan GUO ◽  
Xing-Hua WU
Keyword(s):  
Combustion Synthesis ◽  
Temperature Dependent ◽  
Temperature Dependent Photoluminescence

scholarly journals Piezoelectric property comparison of two-dimensional ZnO nanostructures for energy harvesting devices

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3363-3370
Author(s):  
Ang Yang ◽  
Yu Qiu ◽  
Dechao Yang ◽  
Kehong Lin ◽  
Shiying Guo
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Property ◽  
Piezoelectric Effect ◽  
Theoretical Studies ◽  
Two Dimensional ◽  
Zno Nanostructures ◽  
Energy Harvesting Devices ◽  
Experimental And Theoretical Studies

In this paper, experimental and theoretical studies of the piezoelectric effect of two-dimensional ZnO nanostructures, including straight nanosheets (SNSs) and curved nanosheets (CNSs) are conducted.

Temperature-dependent photoluminescence from MEH-PPV and MEH-OPPV containing oxadiazole in the main chain

2006 ◽  
Vol 84 (1-2) ◽  
pp. 203-206 ◽  
Author(s):  
F. Kong ◽  
X.L. Wu ◽  
G.S. Huang ◽  
R.K. Yuan ◽  
C.Z. Yang ◽  
...  
Keyword(s):  
Main Chain ◽  
Temperature Dependent ◽  
Temperature Dependent Photoluminescence

scholarly journals Temperature-Dependent Photoluminescence of ZnO Thin Films Grown on Off-Axis SiC Substrates by APMOCVD

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1035
Author(s):  
Ivan Shtepliuk ◽  
Volodymyr Khranovskyy ◽  
Arsenii Ievtushenko ◽  
Rositsa Yakimova
Keyword(s):  
Optical Properties ◽  
Structural Quality ◽  
Organic Chemical ◽  
Zno Films ◽  
Vicinal Surfaces ◽  
Temperature Dependent ◽  
Step Flow ◽  
Step Flow Growth ◽  
First Time ◽  
Temperature Dependent Photoluminescence

The growth of high-quality ZnO layers with optical properties congruent to those of bulk ZnO is still a great challenge. Here, for the first time, we systematically study the morphology and optical properties of ZnO layers grown on SiC substrates with off-cut angles ranging from 0° to 8° by using the atmospheric pressure meta–organic chemical vapor deposition (APMOCVD) technique. Morphology analysis revealed that the formation of the ZnO films on vicinal surfaces with small off-axis angles (1.4°–3.5°) follows the mixed growth mode: from one side, ZnO nucleation still occurs on wide (0001) terraces, but from another side, step-flow growth becomes more apparent with the off-cut angle increasing. We show for the first time that the off-cut angle of 8° provides conditions for step-flow growth of ZnO, resulting in highly improved growth morphology, respectively structural quality. Temperature-dependent photoluminescence (PL) measurements showed a strong dependence of the excitonic emission on the off-cut angle. The dependences of peak parameters for bound exciton and free exciton emissions on temperature were analyzed. The present results provide a correlation between the structural and optical properties of ZnO on vicinal surfaces and can be utilized for controllable ZnO heteroepitaxy on SiC toward device-quality ZnO epitaxial layers with potential applications in nano-optoelectronics.

scholarly journals The thermal stability of FAPbBr3 nanocrystals from temperature-dependent photoluminescence and first-principles calculations

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44373-44381
Author(s):  
Xiaozhe Wang ◽  
Qi Wang ◽  
Zhijun Chai ◽  
Wenzhi Wu
Keyword(s):  
First Principles ◽  
First Principle ◽  
First Principles Calculations ◽  
Temperature Dependent ◽  
Time Resolved ◽  
First Principle Calculations ◽  
Steady State Time ◽  
Time Resolved Photoluminescence ◽  
Thermal Stability Of ◽  
Temperature Dependent Photoluminescence

The thermal properties of FAPbBr3 perovskite nanocrystals (PNCs) is investigated by use of temperature-dependent steady-state/time-resolved photoluminescence and first-principle calculations.

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