Essays about: "CIGS"

Showing result 31 - 35 of 35 essays containing the word CIGS.

1. 31. Ammonia free CdS buffer layerfor Cu(In,Ga)Se2 solar cells by chemical bath deposition

   University essay from Fasta tillståndets elektronik

   Author : Daniel Hedlund; [2013]
   Keywords : CIGS; CBD; Ammonia free; solar cell;

   Abstract : The buffer layer in Cu(In,Ga)Se2 solar cells can improve cell performance. In this work we make CdS buffer layer by chemical bath deposition (CBD) without ammonia. CBD without ammonia were sought out since ammonia is a volatile compound. READ MORE

3. 32. Performance Evaluation of Different PV-Array Configurations under Weak Light Conditions and Partial Shadings

   University essay from Högskolan Dalarna/Energi och miljöteknik

   Author : Marco Hernandez Velasco; [2012]
   Keywords : ;

   Abstract : The paper analyses empirical performance data of five commercial PV-plants in Germany. The purpose was on one side to investigate the weak light performance of the different PV-modules used. On the other hand it was to quantify and compare the shading losses of different PV-array configurations. READ MORE

4. 33. Solution based methods for synthesis of tin and zinc; wires and thin films

   University essay from Oorganisk kemi

   Author : Sofie Johansson; [2012]
   Keywords : solution based chemistry; sol-gel; nanowires; solar cells;

   Abstract : In this work two different solution based methods have been used for synthesis ofoxide-wires and homogeneous heterometallic oxides of transparent conductingmaterials. The first method used is an aqueous chemical growth (ACG) method for synthesis ofmicrorods and nanowires of zinc oxide and tin dioxide useful for detection of toxicgases. READ MORE

5. 34. Alternative back contact for CIGS solar cells built on sodium-free substrates

   University essay from Fasta tillståndets elektronik

   Author : Wilhelm Söderström; [2011]
   Keywords : CIGS solar cells; solar power;

   Abstract : It is widely known that the element sodium plays a vital role in providing highefficiency CIGS solar cells and that when cells are built on sodium free substrates theyneed an alternative (a substitute) sodium source. In this study a molybdenum-sodiumcompound has been deposited, investigated and evaluated as an alternative backcontact layer containing sodium. READ MORE

6. 35. Development of a Dense Diffusion Barrier Layer for Thin Film Solar Cells

   University essay from Plasma och beläggningsfysik

   Author : Sankara Pillay; [2009]
   Keywords : thin film; diffusion barrier layer;

   Abstract : Tantalum diffusion barrier coatings were investigated as a way to improve the conversion efficiency of CIGS (copper indium gallium diselenide) solar cells.  Tantalum coatings were deposited upon silicon and stainless steel foil substrates using direct current magnetron sputtering (DcMS) and high power impulse magnetron sputtering (HiPIMS). READ MORE