Abstract
This article reports the efiect of vapour chopping technique on the properties of vacuum evaporated poly (3- methyl thiophene) thin fllms such as surface morphology, optical transmittance, band gap, refractive index and optical transmission loss. Vapour chopping gives smooth surface morphology with smaller grain size reduced roughness than non chopped thin fllms, while the transmittance of the thin fllm increases with simultaneous decrease in the refractive index, band gap and optical transmission loss decreases due to vapour chopping.
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