Gamma-Irradiation Effects on the Spectral and Amplified Spontaneous Emission (ASE) Properties of Conjugated Polymers in Solution.

In this paper, we investigate the effects of gamma (γ) radiation on the spectral and mplified spontaneous emission (ASE) properties of two conjugated polymers (CPs) viz., poly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH⁻PPV) (CPM) and poly{[2-[2',5'-(2″-ethylhexyloxy)phenyl]-1,4-phenylenevinylene]--[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylene vinylene]} (BEHP--MEH⁻PPV) (BMP) in tetrahydrofuran (THF). Gamma irradiation strongly affected the photophysical properties of these CPs.