Effect of Aluminium Metal Dosage on Surface Area, Crystallinity and Energy Band Gap of ZnO Nanostructure and Crystalline Size

2018 ◽  
Vol 25 (3) ◽  
pp. 1-6
Author(s):  
O. Ojo Mathew ◽  
Aloba Isaac Oladele ◽  
Hauwa Sidi Aliyu ◽  
Salamatu Aliyu Tukur
Keyword(s):  
Band Gap ◽  
Surface Area ◽  
Energy Band ◽  
Crystalline Size ◽  
Energy Band Gap ◽  
Zno Nanostructure ◽  
Aluminium Metal

Photocatalytic Application of Graphene-Based TiO2 Nanocomposite

2017 ◽  
Vol 266 ◽  
pp. 79-83
Author(s):  
Vorrada Loryuenyong ◽  
Khajornsak Intong ◽  
Vannapa Pongpraphan ◽  
Watcharothai Suksakkhee ◽  
Achanai Buasri
Keyword(s):  
Graphene Oxide ◽  
Specific Surface ◽  
Band Gap ◽  
Surface Area ◽  
Specific Surface Area ◽  
Energy Band ◽  
Uv Light ◽  
High Specific Surface Area ◽  
Energy Band Gap ◽  
Photodegradation Efficiency

Titanium dioxide (TiO2) is one of the most well known photocatalytic materials. However, TiO2 is only photoactive to ultraviolet (UV) light, and the lifetime of the electron-hole pair recombination is too short. In this work, TiO2 anatase nanotubes with an energy band gap of 3.01 eV and specific surface area of 112.46 m2/g were synthesized via hydrothermal method. The results showed that, by incorporating graphene oxide (XGO) and reduced graphene oxide (RGO), the photodegradation efficiency could be enhanced by increasing electron lifetime and charge carrier separation, as well as narrowing the energy band gap. The examination of photodegradation activity under UVC irradiation indicated that a maximum photodegradation efficiency was achieved with TiO2-XGO nanocomposite due to its high specific surface area and strong hydrophilic property.

scholarly journals No Resistive Normal Electrons in Beginning Superconducting States

Mathematics ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1512
Author(s):  
Changho Seo ◽  
Seongsoo Cho ◽  
Je Huan Koo
Keyword(s):  
Band Gap ◽  
Energy Band ◽  
Energy Band Gap

We investigate why normal electrons in superconductors have no resistance. Under the same conditions, the band gap is reduced to zero as well, but normal electrons at superconducting states are condensed into this virtual energy band gap.

Energy Band Gap Studies of CdS Nanomaterials

2008 ◽  
Vol 3 ◽  
pp. 97-102 ◽  
Author(s):  
Dinu Patidar ◽  
K.S. Rathore ◽  
N.S. Saxena ◽  
Kananbala Sharma ◽  
T.P. Sharma
Keyword(s):  
Optical Absorption ◽  
Band Gap ◽  
Energy Band ◽  
Chemical Method ◽  
Optical Absorption Spectroscopy ◽  
Cds Nanoparticles ◽  
X Ray Diffraction ◽  
Energy Band Gap ◽  
X Ray ◽  
Simple Chemical

The CdS nanoparticles of different sizes are synthesized by a simple chemical method. Here, CdS nanoparticles are grown through the reaction of solution of different concentration of CdCl2 with H2S. X-ray diffraction pattern confirms nano nature of CdS and has been used to determine the size of particle. Optical absorption spectroscopy is used to measure the energy band gap of these nanomaterials by using Tauc relation. Energy band gap ranging between 3.12 eV to 2.47 eV have been obtained for the samples containing the nanoparticles in the range of 2.3 to 6.0 nm size. A correlation between the band gap and size of the nanoparticles is also established.

Tailoring energy band gap and optical absorption of Cd doped MnTe2

2020 ◽  
pp. 111059
Author(s):  
B. Thapa ◽  
P.K. Patra ◽  
Sandeep Puri ◽  
K. Neupane ◽  
A. Shankar
Keyword(s):  
Optical Absorption ◽  
Band Gap ◽  
Energy Band ◽  
Energy Band Gap

Energy band gap of the alloy Zn1−xMgxSeyTe1−y lattice matched to ZnTe, InAs and InP

2000 ◽  
Vol 214-215 ◽  
pp. 350-354 ◽  
Author(s):  
Kyurhee Shim ◽  
Herschel Rabitz ◽  
Ji-Ho Chang ◽  
Takafumi Yao
Keyword(s):  
Band Gap ◽  
Energy Band ◽  
Energy Band Gap ◽  
Lattice Matched
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