Abstract
This paper presents an analysis on the performance of an optical wireless power transfer system in which optical transceivers made from a perovskite are used. Experiments are performed under different settings, whose resulted data reveal interesting findings. First, system performance is only matched with the existing theory when no collimating lens is employed. Hence, a data-driven mathematical model is proposed and verified when a collimating lens is used. Second, a collimating lens helps increase the amount of wirelessly transferred power and the transfer distance if perfect alignment between optical transceivers is guaranteed, but substantially limits the sliding distance between them otherwise.
Highlights
IntroductionOPTICAL wireless power transfer (OWPT) is an emerging and promising approach applicable in many practical systems including internet of things [1,2], consumer electronics [1,3], implantable medical devices [4,5,6], vehicle electrification [7,8,9,10,11,12], robotics [7,8,9,10,11,12], etc
In our previous study [7], we proposed a thing-to-thing OPTICAL wireless power transfer (OWPT) (T2T-OWPT) network in which hybrid perovskite solar cells serve as optical transceivers capable of both emitting and absorbing light
Without a collimating lens, the light beam from the perovskite optical transmitter is spread, which helps increase the success of wirelessly transmitted power to the optical receiver
Summary
OPTICAL wireless power transfer (OWPT) is an emerging and promising approach applicable in many practical systems including internet of things [1,2], consumer electronics [1,3], implantable medical devices [4,5,6], vehicle electrification [7,8,9,10,11,12], robotics [7,8,9,10,11,12], etc. OWPT systems can be self-charged even when the primary side, i.e., the optical transmitters, are not present, which is extremely important and convenient for numerous applications such as implant medical devices and biosensors, wearable electronics, etc. OWPT systems can be utilized in different environments, namely air, water, space, under the skin [7,14], in brain science [15,16], and even at the nanoscale [17]
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