Download or read book Pulsed Laser Annealing and Rapid Thermal Annealing of Copper indium gallium diselenide based Thin film Solar Cells written by Xuege Wang and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Device simulation using one-dimensional (1-D) AMPS program has also been carried in this work for a typical CIGS cell with different defect densities. A well fitting between simulation results and progressive RTA results has been obtained. The results show that the device performance and spectral response can be positively improved by reducing the defect density of CIGS absorber layer. In addition, Gamma-Ray radiation tolerance study on several CIGS samples and solar cells were performed under different total dose by varying the sample displacements and exposure times. XRD and Photo- J-V measurements were taken before and after each radiation. The results show that the surface morphology, crystallinity and the device performance of CIGS solar cells change under certain radiation dose condition.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Annealing of Amorphous Poly written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-05 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The preliminary design proposed for the microelectronics materials processing equipment is presented. An overall mission profile, description of all processing steps, analysis methods and measurement techniques, data acquisition and storage, and a preview of the experimental hardware are included. The goal of the project is to investigate the viability of material processing of semiconductor microelectronics materials in a micro-gravity environment. The two key processes are examined: (1) Rapid Thermal Annealing (RTA) of semiconductor thin films and damaged solar cells, and (2) thin film deposition using a filament evaporator. The RTA process will be used to obtain higher quality crystalline properties from amorphous/poly-silicon films. RTA methods can also be used to repair radiation-damaged solar cells. On earth this technique is commonly used to anneal semiconductor films after ion-implantation. The damage to the crystal lattice is similar to the defects found in solar cells which have been exposed to high-energy particle bombardment. Cole, Eric E. Unspecified Center NAG5-1294...
Download or read book Preparation and Characterization of Copper Indium Gallium Diselenide Films Used in the Absorber Layers of Thin film Solar Cells written by 陳富珊 and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of Copper Indium Gallium Diselenide Powders and Films Used in the Absorber Layer of Thin film Solar Cells written by 吳忠憲 and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of Silver Copper Indium Gallium Diselenide Thin film Solar Cells written by 吳俊杰 and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation of Copper indium gallium diselenide Precursor Films by Electrodeposition for Fabricating High Efficiency Solar Cells written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A photovoltaic cell exhibiting an overall conversion efficiency of 13.6% is prepared from a copper-indium-gallium-diselenide precursor thin film. The film is fabricated by first simultaneously electrodepositing copper, indium, gallium, and selenium onto a glass/molybdenum substrate (12/14). The electrodeposition voltage is a high frequency AC voltage superimposed upon a DC voltage to improve the morphology and growth rate of the film. The electrodeposition is followed by physical vapor deposition to adjust the final stoichiometry of the thin film to approximately Cu(In.sub. 1-n Ga.sub.x)Se.sub. 2, with the ratio of Ga/(In+Ga) being approximately 0.39.
Download or read book Preparation and Characterization of Copper Indium Gallium Diselenide and Copper Zinc Tin Sulfide Powders Used as the Absorber of Thin film Solar Cells written by 林詣軒 and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Preparation Of Copper Indium Gallium Diselenide Films For Solar Cells written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High quality thin films of copper-indium-gallium-diselenide useful in the production of solar cells are prepared by electrodepositing at least one of the constituent metals onto a glass/Mo substrate, followed by physical vapor deposition of copper and selenium or indium and selenium to adjust the final stoichiometry of the thin film to approximately Cu(In, Ga)Se.sub. 2. Using an AC voltage of 1-100 KHz in combination with a DC voltage for electrodeposition improves the morphology and growth rate of the deposited thin film. An electrodeposition solution comprising at least in part an organic solvent may be used in conjunction with an increased cathodic potential to increase the gallium content of the electrodeposited thin film.
Download or read book Laser Annealing of Ion Implanted CZ Silicon for Solar Cell Junction Formation written by J. S. Katzeff and published by . This book was released on 1981 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manufacture of Large area Copper Indium gallium Diselenide Thin Films for Photovoltaic Applications written by Gregory M. Hanket and published by . This book was released on 1999 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Silver Copper Indium Gallium Diselenide Solar Cells on Flexible Substrates written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Capacitance Spectroscopy on Copper Indium Diselenide Based Solar Cells written by Verena Mertens and published by . This book was released on 2005 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of gallium on the electronically active defects in copper indium diselenide based solar cells is examined. The aim is to clarify whether any detrimental deep levels are responsible for the only sublinear increase in open circuit voltage with increasing band gap for devices with molar gallium to gallium plus indium ratio (GGI) larger than 0.3. A series of samples with different GGI is investigated using deep level transient and admittance spectroscopy (DLTS and AS). For the solar cells with mixed absorber composition (0 GGI
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2002 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solution Processing for Copper Indium Sulfide Solar Cells written by Stephen Thacker Connor and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the field of photovoltaics has become increasingly important due to rising energy demand and climate change. While most solar cells are currently composed of crystalline silicon, devices with thinner films of inorganic absorber materials might allow production at a greater scale due to their lower materials cost. In particular, thin films of CuInS2 are promising solar absorber materials due to their high efficiencies and low required thicknesses. However, the fabrication of thin film solar cells currently requires expensive vacuum techniques. As an alternative, solution-based deposition techniques have been proposed as a route to low-cost and high-throughput electronic device fabrication. I have studied how film growth depends on solutuion deposited precursor film quality, with the goal of producing large grained films of CuInS2 through solution processing. In the first approach, we used solvothermal decomposition of organometallic precursors at moderate temperatures to produce nanoparticles of CuInS2. Thin films of these nanoparticles were cast onto molybdenum coated glass and further processed to create CuInS2 solar cells. We found that performance was dependent on film porosity, grain size, and stoichiometry of the nanoparticles. Films with grain sizes of ~200nm were attained, from which 1.3% efficient solar cells were made. In addition, we showed that this synthesis could be extended to produce CuInS2 nanoparticles with partial substitution of Fe, Zn, and Ga. In the second approach, we synthesized an air-stable hybrid organometallic/nanoparticle ink at room temperature in ambient conditions through a vulcanization reaction. This ink could be coated onto substrates in smooth layers, and further reactive annealing formed large grained CuInS2 films. This process was characterized, and a correlation between residual carbon and grain growth was found. Additionally, the chemical transformation between precursor layers and final sulfide thin film was analyzed, with an emphasis on the difference between sulfurization and selenization. We demonstrated that the sulfurization process was producing morphological defects due to its nucleation limited growth mechanism. However, it was modified to more closely resemble the diffusion limited selenization mechanism, thus producing flat films of CuInS2 with grain sizes of ~500nm.
Download or read book Excimer Laser Annealing of Ultra low Temperature Oxides for Flat Panel Display written by Wonsuk Chung and published by . This book was released on 2002 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
