Study of optical properties of swift heavy ion irradiated PADC polymer

Effect of gamma irradiation on the properties of plastic bottle sheet

“…4 represents the UV-Vis spectrum of pristine and irradiated samples. The absorption peak shifts from UV towards the visible region which indicates a decrease in the band gap after irradiation [29,30,[38][39][40][41][42]. The shift to the absorption edge as a result irradiation, inferred the bond rupturing leading to scission, free radical formation, cross linking, etc., resulting into the formation of new bonds.…”

Physical and chemical response of 145MeV Ne6+ ion irradiated polymethylmethacrylate (PMMA) polymer

“…Optical band gap decreases by almost 30% for the sample irradiated to the highest fluence of 10 13 ions/cm 2 . Carbon enriched domains created in polymers during irradiation may be responsible for the decrease in band gap as indicated by earlier studies [22][23][24][25][26].…”

Thermal and optical studies on unirradiated and γ-irradiated polyester track detector

“…In literature several such studies have been carried out recently on the effects of irradiation on polymers by different authors [13][14][15][16][17][18]. A comparison of the data on optical studies of the present detector with those reported on other detectors such as CR-39 have shown that the gamma irradiation of these detectors also leads to shift in optical absorption edges, which indicates a lowering of the energy band gap [13,17,18]. The decrease in energy band gap implies an increase in conductivity [18,19] of the irradiated polymers.…”