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a) Preparation scheme of the graphene/PCMs smart fibers. b–e) Photograph and IR images of the aerogel‐directed smart fibers under an input voltage of 30 V. f,g) Photograph and IR images of the aerogel‐directed smart fibers under solar irradiation of 1.0 sun. Reproduced with permission.[ 120 ] Copyright 2018, Wiley‐VCH.
