-
Tytuł:
-
GaN-Based Laser Wireless Power Transfer System.
-
Autorzy:
-
De Santi, Carlo
Meneghini, Matteo
Caria, Alessandro
Dogmus, Ezgi
Zegaoui, Malek
Medjdoub, Farid
Kalinic, Boris
Cesca, Tiziana
Meneghesso, Gaudenzio
Zanoni, Enrico
-
Temat:
-
GALLIUM nitride
OPTOELECTRONIC devices
WIRELESS power transmission
PHOTODETECTORS
ELECTRICAL load
-
Źródło:
-
Materials (1996-1944); Jan2018, Vol. 11 Issue 1, p153, 13p, 1 Color Photograph, 2 Black and White Photographs, 8 Graphs
-
The aim of this work is to present a potential application of gallium nitride-based optoelectronic devices. By using a laser diode and a photodetector, we designed and demonstrated a free-space compact and lightweight wireless power transfer system, whose efficiency is limited by the efficiency of the receiver. We analyzed the effect of the electrical load, temperature, partial absorption and optical excitation distribution on the efficiency, by identifying heating and band-filling as the most impactful processes. By comparing the final demonstrator with a commercial RF-based Qi system, we conclude that the efficiency is still low at close range, but is promising in medium to long range applications. Efficiency may not be a limiting factor, since this concept can enable entirely new possibilities and designs, especially relevant for space applications. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Zaloguj się, aby uzyskać dostęp do pełnego tekstu.