Toward Thing-to-Thing Optical Wireless Power Transfer: Metal Halide Perovskite Transceiver as an Enabler

Abstract

This paper proposes a novel conceptual system of optical wireless power transfer (OWPT) between objects, which is different from the existing OWPT systems such that a single device—an optical transceiver—is employed. This optical transceiver, which is capable of both absorbing and emitting light, is fabricated from a metal halide perovskite known for its superior features that can help significantly reduce the whole system size and cost. The proposed system contributes to realizing a thing-to-thing OWPT network, in which surfaces of objects/things are covered by perovskite transceivers (fully or partially), enabling them to wirelessly charge or discharge from the others.

Performance Analysis of a Perovskite-Based Thing-to-Thing Optical Wireless Power Transfer System

“…PTICAL 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 possess unique features that other WPT systems do not have.…”

“…Therefore, 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. Second, OWPT systems have relatively simple electronic circuits and can be flexibly attached on uneven surfaces [7]. Third, OWPT systems have the capability of simultaneous information and power transfer [13].…”

“…Third, OWPT systems have the capability of simultaneous information and power transfer [13]. Last but not least, 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].…”

“…In our previous study [7], we proposed a thing-to-thing OWPT (T2T-OWPT) network in which hybrid perovskite solar cells serve as optical transceivers capable of both emitting and absorbing light. The advantages obtained when using optical transceivers are on the potentials of simpler structure, lighter weight, lower cost, and better functionality, flexibility, and convenience for the OWPT system [7].…”

“…In our previous study [7], we proposed a thing-to-thing OWPT (T2T-OWPT) network in which hybrid perovskite solar cells serve as optical transceivers capable of both emitting and absorbing light. The advantages obtained when using optical transceivers are on the potentials of simpler structure, lighter weight, lower cost, and better functionality, flexibility, and convenience for the OWPT system [7]. For instance, any device equipped with our proposed perovskite optical transceiver can be self-charged when it is not in the light-emitting mode, which was not possible in conventional OWPT systems where optical transmitting devices cannot work in light absorption mode.…”