Characterisation of In2S3 and ZnO thin films for photovoltaic application using Photothermal deflection technique M. Paulraj, S. Ramkumar, P.R. Amjith, T. Therasa John, P.M. Ratheeshkumar, C. Sudhakartha, K.P. Vijayakumar et K.G.M. Nair J. Phys. IV France, 125 (2005) 469-472 DOI: 10.1051/jp4:2005125110