Stretchable Passive Radiative Cooling Composites by Surface-Modification of Metal Oxide Nanoparticles
발표자
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초록
내용
Passive radiative cooling (PRC) is gaining attention for its ability to release heat from electronic devices into space (~3 K) through the atmospheric window, which does not absorb radiative energy (8 μm ≤ λ ≤ 13 μm). Recently, deformable and stretchable electronic devices have been intensively studied. However, traditional PRC materials are too opaque and rigid to be used in these devices. Here, we introduce deformable polymers and metal oxides as PRC materials. By surface modification of the metal oxides, we increased the hydrophobicity and dispersibility of metal oxides in organic solvents, achieved homogeneous polymer/metal oxide solutions and fabricated transparent films. These PRC films with dispersed metal oxides maintained efficient cooling even when stretched up to 30%.
Acknowledgement This research was supported by the Digital Research Innovation Institution Program Through the National Research Foundation of Korea(NRF) funded by Ministry of Science and ICT (RS-2023-00283597)