Construction of a Reversible Solid-state Fluorescence Switching Via Photochromic Diarylethene and Si-ZnO Quantum Dots

Ma, Xinhuan; Wang, Xinyao; Cui, Shiqiang; Pu, Shouzhi

doi:10.1007/s10895-023-03279-z

Cited by 3 publications

(2 citation statements)

References 61 publications

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“…T-type PC materials change color under heat, whereas P-type PC materials change color under UV light. Therefore, P-type PC materials can be potentially used for sustainable applications such as display materials decorative items, optical memory devices, and PC optical sensors. , Colorimetric sensors based on photochromic materials are alternatives to electronic UV sensors that can be used for UV exposure monitoring; however, the fabrication of complex structures with an appropriate readout is a challenge. Thermochromic materials have recently been utilized for sensing temperature changes by colorimetric measurements. , A sensor embedded with PC and thermochromic TC materials can simultaneously sense UV radiation and temperature changes .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, P-type PC materials can be potentially used for sustainable applications such as display materials decorative items, optical memory devices, and PC optical sensors. 15,18 based on photochromic materials 19 are alternatives to electronic UV sensors that can be used for UV exposure monitoring; however, the fabrication of complex structures with an appropriate readout is a challenge. Thermochromic materials have recently been utilized for sensing temperature changes by colorimetric measurements.…”

Section: Introductionmentioning

confidence: 99%

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3D-Printed Smartwatch Fabricated via Vat Photopolymerization for UV and Temperature Sensing Applications

Alam,

Alsharif,

AlModaf

et al. 2024

ACS Omega

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Ultraviolet (UV) exposure overdose can cause health issues such as skin burns or other skin damage. In this work, a UV and temperature sensor smartwatch is developed, utilizing a multimaterial 3D printing approach via a vat photopolymerization−digital light processing technique. Photochromic (PC) pigments with different UV sensitivities, UVA (315−400 nm) and UVB (315−280 nm), were utilized to cover a wider range of UV exposure and were mixed in transparent resin, whereas the smartwatch was printed with controlled thickness gradients. A multifunctional sensor was next fabricated by adding a thermochromic (TC) material to PC, which is capable of sensing UV and temperature change. Colorimetric measurements assisted by a smartphone-based application provided instantaneous as well as cumulative UV exposure from sunlight. The mechanical properties of the device were also measured to determine its durability. The prototype of the wearable watch was prepared by fixing the 3D-printed dial to a commercially available silicon wristband suitable for all age groups. The 3D-printed watch is water-resistant and easily removable, allowing for its utilization in multiple outdoor activities. Thus, the developed wearable UV sensor alerts the user to the extent of their UV exposure, which can help protect them against overexposure.

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