chandra singh

* Project Title: Research Investigation on amorphous silicon thin film photovoltaics * Experimental investigation of alternative structures and processes to fabricate nanostructured silicon solar cells * Fabrication of heterojunction intrinsic thin layer solar cells with amorphous and nanocrystalline silicon phases. * Preparation and characterization of a-Si thin films on flexible substrates and study of the feasibility of fabrication of thin film silicon solar cels. * Growth of silicon nanowires using PECVD method and their applications in silicon solar cells. * Optimization of Silicon Nitride thin films for application as antireflection coatings for solar cells.

Research Group: Prof. Monica Katiyar , Dr. S.Sundar Kumar Iyer and Dr. Ashish Garg Project Title: Organic Solar Cells and OLED on Flexible Steel Substrate Collaborating Industry: Corus Group,The Netherlands  Surface morphology Study of Different Insulating material( PET,PIZZA,MgO,SiO2,ZrO2) coated flexible steel substrate using XRD, SEM, AFM  Optimization of device structure of inverted organic soalr cells and selection of materials for different layers. Optimization of electrodes,electron transport layers, hole transport layers and active layer of P3HT:PCBM.Use of single walled carbon nanotube in active layer to increase the efficiency  Optimization of transparent top electrodes using ZnO:Al, Indium Tin Oxide, semitransparent gold, PEDOT:PSS, PEDOT:PSS:SWNTs and PEDOT:PSS ink  Fabrication and characterization of thin films organic solar cells on flexible steel substrates.  Surface morphology study of inverted organic solar cells on steel substrates.  Study of reliability and life time of Organic Solar Cells on flexible steel substrate

Project Title: Measurement of Thermo Physical Properties of Polymer-Composites Achievements: 1) Design,Fabrication and calibration of a computer-controlled Transient Hot Wire apparatus 2) Synthesis of NiO nano-particles 3) Preparation of polymer nano-composites 4) Measurement of Thermal conductivity of Nanoparticles and carbon nano-tube filled polymer composites 6) Development of a user friendly software program to compare experimental data to models for effective thermal conductivity of composites filled with particles and of nano-fluids using MATLAB. (1) The thermal conductivity of the nickel oxide nano-particles filled araldite epoxy resin was increased from 0.21 up to 0.46W/mK with 60 wt % nickel oxide filler. (2) Thermal conductivity of multi-walled carbon nano-tubes filled high-density polyethylene (HDPE) polymer nano-composites was increased by 82% on loading of 1 wt % MWCNTs.