Study of electron irradiation-induced defects in CuInSe2 and CuIn(x)Ga(1-x)Se2 by electron spin resonance

Okada H; Lee HS; Wakahara A; Yoshida A; Ohshima T; Kamiya T

Solar Energy Materials and Solar Cells, Vol.90, No.1, 93-99, 2006

DOI10.1016/j.solmat.2005.03.005 Export Citation

Study of electron irradiation-induced defects in CuInSe2 and CuIn(x)Ga(1-x)Se2 by electron spin resonance

Okada H, Lee HS, Wakahara A, Yoshida A, Ohshima T, Kamiya T

Electron irradiation effects in CuInSe2 and CuInGaSe2 were investigated using electron spin resonance (ESR) method. ESR signal caused by electron irradiation was found in irradiated samples. The ESR spectra of irradiated samples were well reproduced by a computer simulation of powder spectrum assuming Cu2+ ion. Electron irradiation effects in CuInSe2 and CuInGaSe are discussed based on present ESR study together with previous deep level transient spectroscopy (DLTS) and Hall effect measurements. (C) 2005 Elsevier B.V. All rights reserved.

Keywords:CuInSe2;CuInGaSe2;irradiation effects;high-energy electron irradiation;electron spin resonance