Ink - based non-vacuum process of synthesis of multicomponent Cu2ZnSn (Se1-x,Sx)4 for use in low-cost photovoltaic absorbers

Shailesh Narain Sharma; Parul Chawla; Shefali Jain; Mansoor Ahamed; N. Vijayan; J. Sharma

Volume 1, Issue 2 , November 2016, Pages 118-124

  In this present work, Cu2ZnSn(Se1-x,Sx)4  nanocrystals with tunable band gaps have been synthesized  via hot injection method in conjunction with TOP/TOP capping ligands. By varying the input precursor ratio Se/( S + Se), by adjusting the composition parameter x from 0  to 1.0, the band ...  Read More

A novel technique to synthesize monolayers of WS2: a low boiling point liquid exfoliation approach

Ravindra Kumar Jha; Raghubeer Singh; Debasree Burman; Sumita Santra; Prasanta Kumar Guha

Volume 1, Issue 2 , November 2016, Pages 125-130

  We report herein exfoliation of WS2, which is one of the most promising but less investigated among 2D TMDs in binary mixture of diethyl ether (with boiling point=34.6°C) and water. The bulk WS2 powder was first ball milled in toluene for few minutes and at low rpm. Subsequently the powder was kept ...  Read More

AC conductivity and dielectric analysis of Pb1-xLax[(Mg1+x/3Nb2-x/3)0.65Ti0.35(1-x)/4]O3, (x = 0, 0.02, 0.05) relaxor ferroelecric ceramics

Pragya Pandit; Pargin Bangotra

Volume 1, Issue 2 , November 2016, Pages 131-139

  In this paper we investigate the effect of lanthanum doping on structural, dielectric and electrical  properties  of lead magnesium niobate - lead titanate, 0.65Pb(Mg1/3Nb2/3O3)- 0.35PbTiO3 (x=0, 0.02, 0.05) ferroelectric ceramics. Dielectric and AC impedance spectroscopic measurements were ...  Read More

Development of nickel modified Fe3O4 solar selective coatings for solar absorber applications

Ajoy K. Saha; Rajesh Kumar; Belal Usmani; Laltu Chandra; Ambesh Dixit

Volume 1, Issue 2 , November 2016, Pages 140-145

  We report the development of Fe3O4/Cu, and Ni-Fe3O4/Cu based spectrally selective coatings for solar absorber applications using two different electrochemical baths. The deposition processes were optimized for both electrochemical baths and it was observed that the controlled introduction of nickel in ...  Read More

Ethanol electro-oxidation by Pt/r(GO-ZSM)/ graphite foil

Basu M. Daas; Debalina Das; Susanta Ghosh

Volume 1, Issue 2 , November 2016, Pages 156-160

  Present study reports electro-oxidation of ethanol over platinum loaded, reduced graphene oxide – ZSM-5 composite (GO-ZSM) on graphite foil (GF). To prepare the Pt/r(GO-ZSM)/GF electrode, GO-ZSM-5 composite was prepared by simple 1:1 mechanical mixing which was coated over graphite foil and electrochemically ...  Read More

Synthesis and characterization of triphenylpyridine containing azo-linked polymer materials

Dhanasekaran Prakash; Sellamuthu N. Jaisankar

Volume 1, Issue 2 , November 2016, Pages 161-164

  A 2, 4, 6-Tris (4-nitrophenyl) pyridine (TNPP) was synthesized from nitrobenzaldehyde and nitroacetophenone in glacial acetic acid and conformed. The TNPP monomer further reacted with diamines such as benzidine (TNPP-B) and phenylenediamine (TNPP-P) to obtain azo linked polymers for photochemical activity. ...  Read More

HRP modified pulse laser ablated ZnO nanostructure for H2O2 sensing

Amit Srivastava; Naresh Kumar

Volume 1, Issue 2 , November 2016, Pages 165-170

  Biosensor for the detection of hydrogen peroxide (H2O2) has been prepared by immobilizing horseradish peroxidase (HRP) enzyme using physical adsorption technique on zinc oxide (ZnO) nanostructures. The (002) oriented ZnO nanostructures as confirmed by X-ray diffraction, were successfully grown on indium ...  Read More

Charge transfer studies of indium phosphide-polymer nanocomposites

Akanksha Prakash; Shailesh Narain Sharma

Volume 1, Issue 2 , November 2016, Pages 171-175

  Indium Phosphide quantum dots (InP QDs) having various applications can be used for both LEDs and photovoltaics owing to its highly luminescent properties and energy harvesting potential respectively. In our work we have synthesized InP QDs using hot injection technique. Further post synthesis treatment ...  Read More

Exfoliated MoS2 based Humidity Sensing

Debasree Burman; Ravindra Kumar Jha; Sumita Santra; Prasanta Kumar Guha

Volume 1, Issue 2 , November 2016, Pages 176-179

  In our paper, few layered MoS2 nanoflakes were exfoliated from the bulk powder in mixed solvent using a simple sonication assisted liquid exfoliation technique at room temperature. The successful exfoliation of the nanoflakes was characterized using various characterization tools like Scanning Electron ...  Read More

2D SEM and 3D XCT investigation of in-situ Al-Cu-TiB2 semi-solid forged composites

James Mathew; Animesh Mandal; Jason Warnett; Mark A. Williams; M. Chakraborty; Prakash Srirangam

Volume 1, Issue 2 , November 2016, Pages 180-184

  The present work compares the 2D and 3D distribution of TiB2 particles in a semisolid processed Al-4.5%Cu-5wt.% TiB2 in-situ composite prepared by flux assisted synthesis. The composite was synthesized by the reaction of K2TiF6 and KBF4 salts in molten Al-4.5Cu alloy held at 800 oC for an hour. The extent ...  Read More

Dielectric properties of PVDF-PZT composite films and their thermal dependence

Asheesh K. Sharma; Jayanth K. Swamy; Anjana Jain

Volume 1, Issue 2 , November 2016, Pages 185-190

  Piezoelectric polymer-ceramic composite materials are promising candidate for transducer application because of their inherent capability of combining the favourable properties of both ceramic and polymer materials. Present work discusses the dielectric properties of such composite films developed from ...  Read More

Thermoelectric performance of Bi2Te3, Sb2Te3 thin film

Sharmistha Anwar; Barada K. Mishra; Shahid Anwar

Volume 1, Issue 2 , November 2016, Pages 191-194

  Thermoelectric thin films of Bi2Te3 and Sb2Te3 were deposited by using sputtering technique. Structural characterizations of as deposited films were done by using X-ray diffraction (XRD), Energy Dispersive X-ray Analysis and electrical properties have been evaluated at room temperature by Seebeck coefficient ...  Read More

Effect of gadolinium inclusion on the raman spectra and photoluminescence of TiO2 nanoparticles

J. Dhanalakshmi; D. Pathinettam Padiyan

Volume 1, Issue 2 , November 2016, Pages 195-199

  GdxTi1-xO2 nanocomposites with x=0.00, 0.02, 0.04, 0.06, 0.08 & 0.10 were prepared through sol-gel method.  The samples were characterized using X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), High resolution scanning electron microscope (HR-SEM), Raman spectroscopy and photoluminescence ...  Read More

Influence of Bi addition on the optical properties of As40Se60 thin films

Mukta Behera; Rozalin Panda; Naresh C. Mishra; Ramakanta Naik

Volume 1, Issue 2 , November 2016, Pages 200-204

  In the present work, structural, microstructural, compositional and electronic band gap properties of As40Se60 and As40Bi15Se45 bulk and thin films are reported. The films were prepared by thermal evaporation technique under high vacuum. X-ray diffraction (XRD) study indicated amorphous nature of As40Se60 ...  Read More

Electrochemical synthesis and investigation of nano MnO2 electrode material for supercapacitor application

Snehal L. Kadam; Pallavi M.Padwal; Sagar M.Mane; Shrinivas B.Kulkarni

Volume 1, Issue 2 , November 2016, Pages 205-209

  MnO2 metal oxide electrode material is synthesized by simple electrodeposition method on stainless steel substrate. The crystal structure and surface morphological characterizations of the obtained electrode are carried out by using X-ray diffraction (XRD) technique and Field Emission-Scanning Electron ...  Read More

Catalyst assisted vapor phase transport growth and characterization of ZnO nanowires

Shrisha B V; Shashidhara Bhat; Parvathy Venu M; Dushyant Kushavah; K Gopalakrishna Naik

Volume 1, Issue 2 , November 2016, Pages 210-214

  Zinc Oxide (ZnO) nanowires (NWs) were grown on p-silicon (p-Si) substrates coated with around 10 nm thick metal films of Au, Al and Cu using vapor phase transport growth method.  The effect of these metal catalysts and the substrate temperatures on the morphologies of ZnO NWs were studied using ...  Read More

Effect of substrate temperature on micro-structural, optical and electrical properties of V2O5 thin films

P. Rosaiah; G. Lakshmi Sandhya; S. Suresh; Jinghui Zhu; Yejun Qiu; O. M. Hussain

Volume 1, Issue 2 , November 2016, Pages 215-219

  Vanadium pentoxide (V2O5) thin films have been prepared onto ITO coated flexible Kapton substrates by electron beam evaporation technique. The influence of substrate temperature on the structural, morphological, optical and electrical properties has been investigated. The XRD results reveals that the ...  Read More

Structural and optical properties of Mn2O3 nanoparticles & its gas sensing applications

Shiva Sharma; Pratima Chauhan; Shahid Husain

Volume 1, Issue 2 , November 2016, Pages 220-225

  Mn2O3 nanoparticles have been synthesized using chemical co-precipitation method. The as synthesized nanoparticles were characterized by X-ray diffractometer (XRD), UV-Visible spectrophotometer (UV-Vis) and Fourier Transform Infra-Red (FTIR) spectrophotometer method. The results indicate that synthesized ...  Read More

Effect of plasma irradiation on biocompatibility and cell adhesion of polyaniline / chitosan nanocomposites towards Hep G2 and PBMC cells

Ashok Kumar .; Rajiv Borah .

Volume 1, Issue 2 , November 2016, Pages 146-155

  Surface modification of polymeric biomaterials for tissue engineering applications has drawn considerable research interest. In this work, the surface of polyaniline (PAni) nanofibers/chitosan nanocomposites has been modified by plasma irradiation technique to improve its biocompatibility. The average ...  Read More