Movie S2.

The water resistance experiment and potentially self-cleaning behavior of the Bio-RC film.

Biologically inspired flexible photonic films for efficient passive radiative cooling

Haiwen Zhang, Kally C. S. Ly, Xianghui Liu, Zhihan Chen, Max Yan, Zilong Wu, Xin Wang, Yuebing Zheng, Han Zhou, and Tongxiang Fan

PNAS. 2020. 117:14657-14666 DOI: 10.1073/pnas.2001802117