pH-sensitive tunable thermochromic hydrogel with carbon quantum dots for smart windowsSai Zhong, Yuxuan Xue, Kuanwen Wang, Haoyang Li, Yanghua Lu, Zhenqian Pang, Tengyao Jiang and Gang TanNatl Sci Open, 3 3 (2024) 20230071DOI: https://doi.org/10.1360/nso/20230071