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A colloidal-quantum-dot-based self-charging system via the near-infrared band
Cited 17 time in
Web of Science
Cited 18 time in Scopus
- Authors
- Issue Date
- 2018-06-20
- Citation
- Advanced Materials, Vol.30 No.25, p. 1707224
- Abstract
- A novel self-charging platform is proposed using colloidal-quantum-dot (CQD) photovoltaics (PVs) via the near-infrared (NIR) band for low-power electronics. Low-bandgap CQDs can convert invisible NIR light sources to electrical energy more efficiently than wider spectra because of reduced thermalization loss. This energy-conversion strategy via NIR photons ensures an enhanced photostability of the CQD devices. Furthermore, the NIR wireless charging system can be concealed using various colored and NIR-transparent fabric or films, providing aesthetic freedom. Finally, an NIR-driven wireless charging system is demonstrated for a wearable healthcare bracelet by integrating a CQD PVs receiver with a flexible lithium-ion battery and entirely embedding them into a flexible strap, enabling permanent self-charging without detachment.
- ISSN
- 0935-9648
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