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Showing 1 to 20 of 32 for “"CIGS"”.

  1. Modeling the effects of proton irradiation [on] CIGS solar cells

    Dunken, Jacob

    … normalized basic cell parameters for CuInGaSe2 (CIGS) solar cells. This model uses significantly fewer inputs than other computer models, provides a more realistic model with respect to entry angles of incident protons, and provides actual and normalized values without extra calculations.

    unm Repository record

  2. Fabrication and analysis of CIGS nanoparticle-based thin film solar cells

    Ghane, Parvin2013

    … analysis of Copper Indium Gallium di-Selenide (CIGS) nanoparticles-based thin film solar cells are presented and discussed. This work explores non-traditional fabrication processes, such as spray-coating for the low-cost and highly-scalable production of CIGS-based solar cells. CIGS …

    iupui Repository record

  3. Effect of temperature on tunneling and quantum efficiency in cigs solar cells

    Liu, Sizhan

    … formulation. The quantum efficiency model, for CIGS solar cells, is discussed. Device modeling and simulation studies of a Cu(In_{1-x},Gax)Se_2 (CIGS) thin film solar cell are carried out. A variety of graded band-gap structures, including space charge region (SCR) grading, back surface region …

    njit Repository record

  4. LAYER BY LAYER NANOASSEMB​LY OF COPPER INDIUM GALLIUM SELENIUM (CIGS) NANOPARTIC​LES FOR SOLAR CELL APPLICATIO​N

    Hemati, Azadeh2011

    … research thesis, copper indium gallium selenium (CIGS) nanoparticles were synthesized from metal chlorides, functionalized to disperse in water, and further used in layer by layer (LbL) nanoassembly of CIGS films. CIGS nanoparticles were synthesized through the colloidal precipitation in an …

    iupui Repository record

  5. Optical characterization of copper indium gallium diselenide thin films

    Hebert, DamonUniversity of Illinois at Urbana-Champaign2013

    Cu(In,Ga)Se2 (CIGS) and its alloys are the leading choice for thin film photovoltaic absorber layers due to their high performance in devices, low degradation, high optical absorption coefficient and high tolerance to off-stoichiometry and intrinsic defects. Film conductivity and recombination …

    uiuc Repository record

  6. Impact of secondary barriers on CuIn1-xGaxSE2 solar-cell operation

    Pudov, Alexei O., author, Sites, James R., advisor, Leisure, Bob, committee member, Eykholt, Richard, committee member, Wilmsen, Carl, committee memberColorado State University. Libraries2005

    … of Eg = 1.0 eV and also based on CuIn1-xGaxSe2 (CIGS) alloy absorbers with a band-gap range of Eg = 1.0 - 1.67 eV are investigated in this work. Intermediate "buffer" semiconductor layers in p-n junctions of CIGS solar cells often improve photodiode properties of the devices. Several …

    colostate Repository record

  7. Defektspektroskopie an Solarzellen und Schottky-Kontakten auf Basis des Halbleiters Cu(In,Ga)Se 2

    Engelhardt, FrankUniversität Oldenburg

    … auf Basis des Halbleiters Cu(In,Ga)Se2 (CIGS) sind dabei, die Grenze zur Kommerzialisierung zu überschreiten. Ein Spitzenwirkungsgrad von bisher knapp 19% verspricht ein großes Potential. Leider hinkt das physikalische Verständnis den technologischen Erfolgen hinterher. In der …

    oldenburg Repository record

  8. Studies on monolithic tandem structure for low cost and high efficiency dye-sensitized solar cells

    Grew, Benjamin A.Heriot-Watt University2016

    … the thin lm technology, Cu(In,Ga)Se2 or CIGS, is currently being manufactured for use commercially at a competitive price and performance to the current market leader, silicon. A tandem solar cell comprised of the DSC and CIGS absorbers has shown promise of an efficiency suitable for …

    heriot-watt Repository record

  9. Reversible Relaxationsphänomene imelektrischen Transport von Cu(In,Ga)Se2

    Meyer, ThorstenUniversität Oldenburg

    … 300K) im elektrischen Transport von p-leitenden CIGS- Schichten und ZnO/CdS/CIGS-Solarzellen. ein wichtiger Effekt ist die Voc-Relaxation der Zellen d.h. langsame Anstieg Leerlaufspannung (Voc) unter konstanter Beleuchtung. Phänomene auf eine gemeinsame Ursache zurückgeführt nämlich große …

    oldenburg Repository record

  10. {112} Polar Surfaces of Copper(indium,gallium)selenide: Properties and Effects on Crystal Growth

    Liao, DongxiangUniversity of Illinois at Urbana-Champaign2003

    … This work studies the epitaxial growth of CIGS single crystal films on GaAs substrates of various orientations and characterizes the properties of the thin films. A surprising finding is the strong tendency of film surfaces to facet to {112} planes. The work attempted to establish the …

    uiuc Repository record

  11. Effect of Alkali on the Efficiency and Reliability of Cu(In,Ga)Se2 Solar Cells

    Karki, Shankar2019

    … than 20% efficient Cu(In,Ga)Se<sub>2</sub>(CIGS) solar cells. Achieving high efficiency is one key parameter for the success of a photovoltaic technology but so is its long-term stability. In this thesis, the relationship between the performance of alkali treated Cu(In,Ga)Se<sub>2</sub> …

    odu Repository record

  12. Modelling evolving clinical practice guidelines: a case of Malawi

    Msosa, Yamiko JosephDepartment of Computer Science2018

    … (CPGs) into computer-interpretable guidelines (CIGs) for clinical decision support in such a setting is a very challenging task due to the evolving nature of CPGs and limited healthcare budgets. This study proposed that a CIG modelling language that considers CPG change requirements in their …

    cape-town Repository record

  13. Growth and characterization of epitaxial silver indium diselenide

    Pena Martin, Pamela AUniversity of Illinois at Urbana-Champaign2015

    … cell absorber material to date is Cu(In,Ga)Se2 (CIGS). While current efficiency records are over 21% for single-junction cells, there is still room for improvement. Replacing some of the Cu with Ag has been shown to be beneficial in CIGS devices. However, the Ag- containing chalcopyrites are …

    uiuc Repository record

  14. Scanning probe microscopy study of thin film solar cells

    Li, Huan, Ph. D.2014

    … CdTe, CuIn [subscript x] Ga [subscript 1-x] Se₂ (CIGS), Cu₂ZnSnS₄ (CZTS) and Cu₂ZnSnSe₄ (CZTSe), have been intensively studied for their unique features and excellent prospect of mass production in industry. The p-n junction is the most critical part of the thin film solar cell and greatly …

    tdl Repository record

  15. Characterization Of Microstructural And Chemical Features In Cu-in-ga-se-s-based Thin-film Solar Cells

    Halbe, Ankush

    … ETH Zurich were characterized for changes in the CIGS (Cu(In,Ga)Se2) microstructure due to sodium incorporation from soda-lime glass or from a post-deposition treatment with NaF as a function of CIGS deposition temperature. The CIGS-CdS interface becomes smoother and the small columnar CIGS grains …

    ucf

  16. Investigation of CZTSe Solar Cell with ZnS, ZnSe and In2S3 as Buffer Layers

    Morusu, MadanUniversity of Toledo2012

    … current. Among today’s thin film technologies CIGS and CdTe are profound but the toxic nature of Cd, and hard to mine elements used in CIGS, like In, Ga make the commercial level production not feasible. The use of CZTSe which is mainly made of earth abundant materials, as absorber layer is …

    ohiolink Repository record

  17. The institutionalization of citizen participation in the Clean Air Act

    Brady, Gordon L.Virginia Polytechnic Institute and State University1975

    In recent years Citizen Interest Groups (CIGs) have become an important factor in the implementation of environmental regulations and hence in the allocation of scarce resources via the political process. This study examines the impact of environmental CIGs on the implementation of the Clean Air …

    vt Repository record

  18. The Role of Cd and Ga in the Cu(In,Ga)S2/CdS Heterojunction Studied with X-Ray Spectroscopic Methods

    Johnson, Benjamin2010

    … Fine Structure, um die Entwicklung der Lage der CIGS Leitungsbandkante mit zunehmendem Ga-Gehalt zu verfolgen. Dazu wurden die Vor- und Nachteile der etablierten und neuen Methoden gegenübergestellt und diskutiert. Es wurde festgestellt, dass die Deposition von CdS weder das Fermi Niveau an einer …

    tu-berlin Repository record

  19. Optoelectronic characterization of wide-bandgap (AgCu)(InGa)Se 2 thin-film polycrystalline solar cells including the role of the intrinsic zinc oxide layer

    Obahiagbon, UwadiaeUniversity of Delaware2014

    … in polycrystalline thin film (AgCu)(GaIn)Se2 (ACIGS) solar cells. The effect of varying these parameters on the electric field distribution, depletion width and hence capacitance were studied by SCAPS simulation. Devices were then fabricated and characterized by a number of optoelectronic …

    udel Repository record

  20. Plonasluoksnių saulės elementų apdirbimas ultratrumpais lazerių impulsais /

    Gečys, Paulius,Institutional Repository of Vilnius University2012

    … The 1064 nm wavelength was found optimal for the CIGS solar cell scribing in terms of quality and process speed. It is very positive result for industrial applications as the cost and the system complexity are decreased. The solar cell efficiency test revealed minor degradation in photo-electrical …

    vilnius Repository record

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