Progress in the Efficiency of Wide-Gap Cu(In1-xGax)Se2 Solar Cells Using CIGSe Layers Grown in Water Vapor
- 1 May 2005
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 44 (5L) , L679
- https://doi.org/10.1143/jjap.44.l679
Abstract
Progress in the performance of wide-gap Cu(In1-x Ga x )Se2 (CIGSe) solar cells for x values around 0.5 has been demonstrated using CIGSe layers grown in the presence of water vapor. While CIGSe thin films deposited in the presence of water vapor showed variations in electrical properties such as increases in hole carrier density and a consequent enhancement of p-type conductivity, no significant changes in the morphology and growth orientation were observed. Both the open circuit voltages and current densities of the CIGSe solar cells were improved using CIGSe layers grown in water vapor. An 18.1%-efficient cell with an open circuit voltage of 0.744 V, a current density of 32.4 mA/cm2 and a fill factor of 0.752 was fabricated from a 1.3 eV-CIGSe (x ∼0.48) layer.Keywords
This publication has 26 references indexed in Scilit:
- Fabrication of wide-gap Cu(In1−xGax)Se2 thin film solar cells: a study on the correlation of cell performance with highly resistive i-ZnO layer thicknessSolar Energy Materials and Solar Cells, 2005
- SHORT COMMUNICATION: ACCELERATED PUBLICATION: Diode characteristics in state-of-the-art ZnO/CdS/Cu(In1?xGax)Se2 solar cellsProgress In Photovoltaics, 2005
- Control of conduction band offset in wide-gap Cu(In,Ga)Se solar cellsSolar Energy Materials and Solar Cells, 2002
- Control of intrinsic defects in molecular beam epitaxy grown CuInSe2Journal of Crystal Growth, 1999
- Prospects of wide-gap chalcopyrites for thin film photovoltaic modulesSolar Energy Materials and Solar Cells, 1997
- Effect of Water Vapor on the Growth of Textured ZnO-Based Films for Solar Cells by DC-Magnetron SputteringJapanese Journal of Applied Physics, 1991
- The Structural Changes of Indium-Tin Oxide and a-WO3 Films by Introducing Water to the Deposition ProcessesJapanese Journal of Applied Physics, 1991
- Low resistivity indium–tin oxide transparent conductive films. I. Effect of introducing H2O gas or H2 gas during direct current magnetron sputteringJournal of Vacuum Science & Technology A, 1990
- RF-sputtered CuInSe2 thin filmsSolar Energy Materials, 1980
- Hydrogen evolution and defect creation in amorphous Si: H alloysPhysical Review B, 1979