Band Gap Tuning and Room-Temperature Photoluminescence of a Physically Self-Assembled Cu2O Nanocolumn Array

2016 ◽  
Vol 120 (2) ◽  
pp. 1077-1082 ◽  
Author(s):  
Indrani Mukherjee ◽  
Sriparna Chatterjee ◽  
Nilesh A. Kulkarni
Keyword(s):  
Band Gap ◽  
Room Temperature ◽  
Room Temperature Photoluminescence ◽  
Self Assembled ◽  
Band Gap Tuning

Room-temperature photoluminescence of GeSi/Si(001) self-assembled islands in a 1.3-1.7 μm wavelength range

2002 ◽  
Author(s):  
Yu. N. Drozdov ◽  
Z. F. Krasil'nik ◽  
D. N. Lobanov ◽  
A. V. Novikov ◽  
Mikhail Y. Valakh ◽  
...  
Keyword(s):  
Wavelength Range ◽  
Room Temperature ◽  
Room Temperature Photoluminescence ◽  
Self Assembled

Composition Dependent Optical Properties of Zn1-xCdxS Nanostructures

2013 ◽  
Vol 669 ◽  
pp. 335-339
Author(s):  
Xue Yun Song ◽  
Xiu Xi Wang ◽  
Xiang Hua Zeng ◽  
Yong Zhang ◽  
Yi Pei Hu ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Optical Properties ◽  
Band Gap ◽  
Mole Fraction ◽  
Room Temperature ◽  
Lattice Structure ◽  
Red Shift ◽  
Alloy Nanoparticles ◽  
Photoluminescence Spectra ◽  
Room Temperature Photoluminescence

Zn1-xCdxS alloy nanoparticles have been prepared via solvothermal approach. The effects of the mole fraction of Cd on the nanoparticles’ structure, size and photoluminescence spectra were investigated. It shows that with increase in mole fraction of Cd, the lattice structure of Zn1-xCdxS changes from cubic to hexagonal, and the size of these nanoparticles varied within 6-40nm. Room temperature photoluminescence measurements show an intense red shift from 518nm to 662nm. And the band gap energies from 2.3 to 3.54eV can be realized for the Zn1-xCdxS nanopartices. Furthermore, it is found that the conversion of Methylene Blue (MB) using Zn0.6Cd0.4S as the photocatalyst was up to 97% after 2h of irradiation.

Robust room temperature ferromagnetism and band gap tuning in nonmagnetic Mg doped ZnO films

2017 ◽  
Vol 399 ◽  
pp. 751-757 ◽  
Author(s):  
Zhiyong Quan ◽  
Xia Liu ◽  
Yan Qi ◽  
Zhilin Song ◽  
Shifei Qi ◽  
...  
Keyword(s):  
Band Gap ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Zno Films ◽  
Doped Zno ◽  
Band Gap Tuning ◽  
Mg Doped

Self-Assembled Heteroepitaxial AuNPs/SrTiO3: Influence of AuNPs Size on SrTiO3 Band Gap Tuning for Visible Light-Driven Photocatalyst

2017 ◽  
Vol 121 (25) ◽  
pp. 13487-13495 ◽  
Author(s):  
Kok Hong Tan ◽  
Hing Wah Lee ◽  
Jhih-Wei Chen ◽  
Chang Fu Dee ◽  
Burhanuddin Yeop Majlis ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Visible Light Driven ◽  
Self Assembled ◽  
Band Gap Tuning

Comparison of the Band Gap of Porous Silicon as Measured by Photoelectron Spectroscopy and Photoluminescence

1994 ◽  
Vol 358 ◽  
Author(s):  
T. Van Buuren ◽  
S. Eisebitt ◽  
S. Patitsas ◽  
S. Ritchie ◽  
T. Tiedje ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Band Gap ◽  
Current Density ◽  
Absorption Edge ◽  
Photoelectron Spectroscopy ◽  
Photoluminescence Spectrum ◽  
Room Temperature ◽  
Room Temperature Photoluminescence ◽  
Preparation Conditions ◽  
Peak Energy

ABSTRACTThe peak energy of the room temperature photoluminescence of porous silicon is compared with the bandgap determined from photoelectron spectroscopy measurements for a series of porous silicon samples prepared under different conditions. The photoluminescence bandgap is found to be smaller than the photoelectron spectroscopy bandgap, but exhibits the same trend with preparation conditions. The width of both the photoluminescence spectrum and the L-absorption edge increases when the current density during the preparation is increased or the sample is allowed to soak in HF after preparation.

scholarly journals Band-gap narrowing in Mn-doped GaAs probed by room-temperature photoluminescence

2015 ◽  
Vol 92 (22) ◽  
Author(s):  
S. Prucnal ◽  
K. Gao ◽  
I. Skorupa ◽  
L. Rebohle ◽  
L. Vines ◽  
...  
Keyword(s):  
Band Gap ◽  
Room Temperature ◽  
Room Temperature Photoluminescence ◽  
Band Gap Narrowing ◽  
Mn Doped
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