Essays about: "CIGS"

Showing result 26 - 30 of 35 essays containing the word CIGS.

  1. 26. Study of CVD deposited i-ZnO layers in CIGS thin film solar cells

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Fredrik Larsson; [2015]
    Keywords : CVD; CIGS; intrinsic; ZnO; thin film; solar cell;

    Abstract : CIGS thin film solar cells usually include a thin layer of intrinsic zinc oxide (i-ZnO) deposited on a CdS buffer layer by sputtering. However an interest has grown in using chemical vapor deposition (CVD) instead. READ MORE

  3. 27. Potential Induced Degradation of CIGS Solar Cells

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Fredrik Rostvall; [2014]
    Keywords : CIGS; Solar Cells; Sodium;

    Abstract : This thesis studies the effects of Na diffusion in Cu(In,Ga)Se2 (CIGS) solar cells,caused by electrical Potential Induced Degradation (PID) and how to prevent it. Thiswas done by subjecting CIGS solar cells a temperature of 850C and an electrical biasfrom the backside of the glass substrate to the Mo back contact of the CIGS cell. READ MORE

  4. 28. Characterization of Al2O3 as CIGS surface passivation layer in high-efficiency CIGS solar cells

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Jonathan Joel; [2014]
    Keywords : CIGS; Surface Passivation; Thin Film Solar Cells; Al2O3; Capacitance-Voltage; Photoluminescence;

    Abstract : In this thesis, a novel method of reducing the rear surface recombination in copper indium gallium (di) selenide (CIGS) thin film solar cells, using atomic layer deposited (ALD) Al2O3, has been evaluated via qualitative opto-electrical characterization. The idea stems from the silicon (Si) industry, where rear surface passivation layers are used to boost the open-circuit voltage and, hence, the cell efficiency. READ MORE

  5. 29. Deposition of CIGS absorber layer by gas flow sputtering : Initiation of project

    University essay from Fasta tillståndets elektronik

    Author : Anders Åsberg; [2013]
    Keywords : GFS; gas flow sputtering; CIGS;

    Abstract : The photovoltaic solar cell industry is growing rapidly, but high cost per watt is still an obstacle. Thin film solar cells, especially thin film solar cells using CIGS absorbers that have the highest proven efficiency, have the potential to reduce the cost through cheap manufacturing. READ MORE

  6. 30. Surface Passivation of CIGS Solar Cells by Atomic Layer Deposition

    University essay from KTH/Kraft- och värmeteknologi

    Author : Sara Motahari; [2013]
    Keywords : solar cells; CIGS; thin film; surface passivation; atomic layer deposition;

    Abstract : Thin film solar cells, such as Cu(In,Ga)Se2, have a large potential for cost reductions, due to their reduced material consumption. However, the lack in commercial success of thin film solar cells can be explained by lower efficiency compared to wafer-based solar cells. READ MORE