Trap states in chemically derived graphene oxide revealed by anomalous temperature-dependent photoluminescence

RSC Advances ◽  
2014 ◽  
Vol 4 (35) ◽  
pp. 18141 ◽  
Author(s):  
Haiping He ◽  
Hui Li ◽  
Tairan Zhang ◽  
Luwei Sun ◽  
Zhizhen Ye
Keyword(s):  
Graphene Oxide ◽  
Trap States ◽  
Temperature Dependent ◽  
Anomalous Temperature ◽  
Temperature Dependent Photoluminescence

Temperature-Dependent Photoluminescence of Graphene Oxide

2015 ◽  
Vol 45 (1) ◽  
pp. 379-385 ◽  
Author(s):  
S. T. Jadhav ◽  
S. J. Rajoba ◽  
S. A. Patil ◽  
S. H. Han ◽  
L. D. Jadhav
Keyword(s):  
Graphene Oxide ◽  
Temperature Dependent ◽  
Temperature Dependent Photoluminescence

Anomalous temperature-dependent photoluminescence peak energy in InAlN alloys

2014 ◽  
Vol 35 (9) ◽  
pp. 093001
Author(s):  
Wei Li ◽  
Peng Jin ◽  
Weiying Wang ◽  
Defeng Mao ◽  
Guipeng Liu ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Anomalous Temperature ◽  
Peak Energy ◽  
Photoluminescence Peak ◽  
Temperature Dependent Photoluminescence

Temperature-dependent photoluminescence from chemically and thermally reduced graphene oxide

2011 ◽  
Vol 99 (4) ◽  
pp. 041905 ◽  
Author(s):  
Tran Viet Cuong ◽  
Viet Hung Pham ◽  
Eun Woo Shin ◽  
Jin Suk Chung ◽  
Seung Hyun Hur ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Temperature Dependent ◽  
Reduced Graphene ◽  
Temperature Dependent Photoluminescence

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

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.

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