Zn thin film on Al metal as thermal substrates for LED application: thermal and optical performance

摘要: Zn thin film at various thickness was deposited on Al substrates and used as thermal interface materials tested their performance affecting the optical properties of LED driving currents. The total resistance (Rth-tot) showed influence annealing temperatures observed low value for 300 nm 400 nm at ~ 150 °C. High difference in Rth-tot (∆Rth-tot  − 3.78 K/W) recorded with annealed 150 °C compared bare measured 700 mA. Higher temperature does not show much improvement reducing LED. Among all studied, better rise junction (TJ) TJ 8.07 °C that substrate output also supported results achieved improved light same boundary conditions. lux values 350 °C roughness increased upto 500 nm respectively. highest lowest surface 112 nm 21 nm were 800 nm thick from samples respectively observation made by both analysis given Overall, we may consider solid material packaging application.