A Colloidal-Quantum-Dot-Based Self-Charging System via the Near-Infrared Band

A Colloidal-Quantum-Dot-Based Self-Charging System via the Near-Infrared Band

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 30(2018), 25 vom: 10. Juni, Seite e1707224
1. Verfasser: Baek, Se-Woong (VerfasserIn)
Weitere Verfasser: Cho, Jungmin, Kim, Joo-Seong, Kim, Changjo, Na, Kwangmin, Lee, Sang-Hoon, Jun, Sunhong, Song, Jung Hoon, Jeong, Sohee, Choi, Jang Wook, Lee, Jung-Yong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article colloidal quantum dots flexible Li-ion batteries near-infrared (NIR) photostability wearable electronics
Beschreibung
Zusammenfassung:© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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
Beschreibung:Date Completed 01.08.2018
Date Revised 01.10.2020
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.201707224