Reliability of OTFTs on flexible substrate: mechanical stress effect B. Bensaid, X. Boddaert, P. Benaben, R. Gwoziecki and R. Coppard Eur. Phys. J. Appl. Phys., 55 2 (2011) 23907 Published online: 11 August 2011 DOI: 10.1051/epjap/2011100426