Version 1
: Received: 24 February 2024 / Approved: 26 February 2024 / Online: 26 February 2024 (12:11:29 CET)
How to cite:
Kuti, A.; Graham, J.; Sun, S. Demonstration of Photovoltage via Non-Uniform Light Illumination. Preprints2024, 2024021426. https://doi.org/10.20944/preprints202402.1426.v1
Kuti, A.; Graham, J.; Sun, S. Demonstration of Photovoltage via Non-Uniform Light Illumination. Preprints 2024, 2024021426. https://doi.org/10.20944/preprints202402.1426.v1
Kuti, A.; Graham, J.; Sun, S. Demonstration of Photovoltage via Non-Uniform Light Illumination. Preprints2024, 2024021426. https://doi.org/10.20944/preprints202402.1426.v1
APA Style
Kuti, A., Graham, J., & Sun, S. (2024). Demonstration of Photovoltage via Non-Uniform Light Illumination. Preprints. https://doi.org/10.20944/preprints202402.1426.v1
Chicago/Turabian Style
Kuti, A., Jordan Graham and Sam-Shajing Sun. 2024 "Demonstration of Photovoltage via Non-Uniform Light Illumination" Preprints. https://doi.org/10.20944/preprints202402.1426.v1
Abstract
Photovoltaic materials convert light into electrical voltages. So far, most research in the field are focused on how to refine/improve the existing or standard photovoltaic cells to yield more efficient electricity, to reduce weight, to make more flexible shape, or to minimize costs under standard and uniform sunlight illuminations. In this project, we explore and demonstrate a hypothesis that non-uniform light illumination photovoltages can also be generated due to photo doping induced mobile charge carrier density gradient between light and dark areas in either p-type or n-type photo doping semiconductors. The term non-uniform light illumination was coined to refer to subjecting our photo sensing thin film devices to areas of high and low intensities of light illumination simultaneously, with an intention of creating a charge density gradient and therefore a voltage. Specifically, a polymeric composite thin film composed of P3HT (p-type photo doping semiconductor) and PCBM (photo doping electron acceptor and trap) at varying p-doping levels were studied. We observed that the fabricated photovoltaic cells with about 80% PCBM doped P3HT thin film devices exhibited 0.5-1.2 volts photovoltages under non-uniform light illuminations.
Keywords
Non-uniform illumination; photovoltage; optoelectronic; p-type photo doping; P3HT/PCBM; energy conversion; solar cells; image sensor
Subject
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
