Ultrafast humidity-responsive structural colors from disordered nanoporous titania microspheres

• DOI: 10.1039/c9ta01394f
• Publication Date: 2019-04-03T02:45:03Z
• Authors: Syazwani Mohd-Noor; Hansol Jang; Kyungnae Baek; Yi-Rong Pei; Al-Mahmnur Alam; Yong Hwan Kim; In Soo Kim; Jin-Ho Choy; Jerome K. Hyun
• Keywords: Nanoporous

Ultrafast and reversible colorimetric responses to humidity changes are observed with disordered, nanoporous titania microspheres, optimized in speed intensity a monolayer coverage. The response times, defined by intracrystalline diffusion of water molecules, represent the fastest values for sensors.