Research
- Overview
- High-quality Functional Films Growth
- Dynamic Windows and Devices
- Self-adaptive IR Emissivity Variation Materials and Devices
- Photothermal control metamaterials
- Photo-Thermal-Electric Conversion Devices
Self-adaptive IR Emissivity Variation Materials and Devices
The sun (～5700 K) and outer space (～3 K) are two natural energy resources for humans. However, most of the approaches of energy harvesting from the sun and rejecting energy to outer space are achieved independently using absorbers and emitters with static spectral properties. Thus, developing self-adaptive structures/devices with strong solar absorption and switchable emissivity within the atmospheric window (ie, 8-13 μm) can be demonstrated to achieve diurnal solar thermal and nocturnal radiative cooling efficiently. Besides, day-time Radiative cooling and solar heating is very important for energy-saving of buildings. 
