biostudies-literatureUnknown15(55)Giri SLaser treatment for tuning the thin film properties is regarded as a cost-effective, simple, and environmentally friendly method. The recent work aims at the laser annealing of In₁₀Se₇₀Te₁₅Bi₅ film under a 532 nm DPSS laser at variable time scales. The findings from the structural study show an increased dislocation density with reduced crystallite size with irradiation time. The phases like In₂Se₃ and Bi₂Se₃ contributed towards the other optical parameters. The reduction in bandgap by 0.023 eV upon laser irradiation shows laser-induced modification in the films. It enhanced the photocurrent, thus increasing the responsivity to 2.52 × 10^-3 A W^-1 and photo detectivity to 6.51 × 10<sRSC advances46821-46837https://www.ebi.ac.uk/biostudies/studies/S-EPMC12659727biostudies-literatureEnhanced photodetectivity and responsivity in In&lt;sub&gt;10&lt;/sub&gt;Se&lt;sub&gt;70&lt;/sub&gt;Te&lt;sub&gt;15&lt;/sub&gt;Bi&lt;sub&gt;5&lt;/sub&gt; film by time-dependent laser irradiation for photodetector applications.PMC12659727Kumar PCNaik RAlagarasan DGiri SSupriya SfalseEnhanced photodetectivity and responsivity in In&lt;sub&gt;10&lt;/sub&gt;Se&lt;sub&gt;70&lt;/sub&gt;Te&lt;sub&gt;15&lt;/sub&gt;Bi&lt;sub&gt;5&lt;/sub&gt; film by time-dependent laser irradiation for photodetector applications.Laser treatment for tuning the thin film properties is regarded as a cost-effective, simple, and environmentally friendly method. The recent work aims at the laser annealing of In₁₀Se₇₀Te₁₅Bi₅ film under a 532 nm DPSS laser at variable time scales. The findings from the structural study show an increased dislocation density with reduced crystallite size with irradiation time. The phases like In₂Se₃ and Bi₂Se₃ contributed towards the other optical parameters. The reduction in bandgap by 0.023 eV upon laser irradiation shows laser-induced modification in the films. It enhanced the photocurrent, thus increasing the responsivity to 2.52 × 10^-3 A W^-1 and photo detectivity to 6.51 × 10<s2025-01-01T00:00:00Z2025 Nov2026-06-05T21:35:17.489Z2026-05-22T03:12:25.128ZS-EPMC126597274132371710.1039/d5ra06469d