High Infrared Blocking Cellulose Film Based on Amorphous to Anatase Transition of TiO2 via Atomic Layer Deposition.

A high IR-blocking cellulose film was designed based on an amorphous to anatase transition of TiO2 using atomic layer deposition (ALD). This transition was realized at 250 °C, at which the cellulose is thermal stable. Optimized ALD condition of 250 °C and 1200 cycles give us an excellent heat insulator, which could significantly reduce the enclosed space temperature from 59.2 to 51.9 °C after exposure to IR lamp for 5 min.