In this study, a proof of concept for seamless energy flow is demonstrated by
converting light energy into electrical energy and then storing it. A simple heterojunction structure of an FTO/ZnO/NiO/AgNWs/ZnO array transparent
photovoltaic (TPV) device is employed to ensure an excellent average visible
transmittance value of 67.7% while storing light energy as electrical energy in a
capacitor bank. By simple and stable array connection of unit cell devices, the
power leakage is minimized while maximizing output voltage. In the array TPV
device, an open-circuit voltage of 1.4 V is achieved under 365 nm illumination,
with a voltage of 1.26 V stored in the capacitor bank, accumulating to over 6 V.
The stored electrical energy is successfully converted for use by an light-emitting
diode (LED) light source, demonstrating sustained light-up for over 30 s. This
work explores facile energy generation, storage and utilization through TPVs,
with a good potential for transparent energy harvesting and human interface
applications
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- 대표 발명자
- 김준동
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- 출원번호
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10-2024-0176869
(2024-12-02)