Growth and luminescence properties of γ-CuBr single crystals by the Bridgman method

γ-CuBr single crystals were successfully grown from melt by the Bridgman method with a 75% optical transmittance. γ-CuBr crystals have emission peaks at around 460 nm, 495 nm and 660 nm. The decay time of the free exciton is about 9 ns.