“…There are various methods of TiN thin films deposition, including chemical vapor deposition [20], pulsed layer deposition [21,22], thermal [5,11] and plasma-enhanced [23,24] atomic layer deposition, molecular beam epitaxy [4], reactive radio frequency (RF) [25] and direct current (DC) [26] sputtering, pulsed-DC [27] and high-power impulse magnetron sputtering (HiPIMS) [28,29]. The optical properties of TiN films have been studied extensively.…”