A biomimetic compound eye lens for photocurrent enhancement at low temperatures
Abstract In this study, an artificial compound eye lens (ACEL) was fabricated using a laser cutting machine and polyvinyl alcohol (PVA) solution. A laser cutter was used to punch micro-sized holes (500 μ m diameter—the smallest possible diameter) into an acrylic plate; this punched plate was then pl...
Published in: | Bioinspiration & Biomimetics |
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Online Access: | http://dx.doi.org/10.1088/1748-3190/ac6c65 https://iopscience.iop.org/article/10.1088/1748-3190/ac6c65 https://iopscience.iop.org/article/10.1088/1748-3190/ac6c65/pdf |
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crioppubl:10.1088/1748-3190/ac6c65 2024-06-02T07:56:41+00:00 A biomimetic compound eye lens for photocurrent enhancement at low temperatures Han, Sanghu Sung, Jaebum Ko, Byeongjo Kwon, Minjun Kim, Sewon So, Hongyun Ministry of Trade, Industry and Energy 2022 http://dx.doi.org/10.1088/1748-3190/ac6c65 https://iopscience.iop.org/article/10.1088/1748-3190/ac6c65 https://iopscience.iop.org/article/10.1088/1748-3190/ac6c65/pdf unknown IOP Publishing https://iopscience.iop.org/page/copyright https://iopscience.iop.org/info/page/text-and-data-mining Bioinspiration & Biomimetics volume 17, issue 4, page 046008 ISSN 1748-3182 1748-3190 journal-article 2022 crioppubl https://doi.org/10.1088/1748-3190/ac6c65 2024-05-07T14:00:52Z Abstract In this study, an artificial compound eye lens (ACEL) was fabricated using a laser cutting machine and polyvinyl alcohol (PVA) solution. A laser cutter was used to punch micro-sized holes (500 μ m diameter—the smallest possible diameter) into an acrylic plate; this punched plate was then placed on the aqueous PVA solution, and the water was evaporated. The plate was used as the mold to obtain a polydimethylsiloxane (PDMS) micro lens array film, which was fixed to a dome-shaped three-dimensional-printed mold for further PDMS curing, and a hemispherical compound eye lens was obtained. Using a gallium nitride (GaN) photodetector, a light detection experiment was performed with the ACEL, bare lens, and no lens by irradiating light at various angles under low temperatures. The photodetector with the ACEL generated a high photocurrent under several conditions. In particular, when the light was irradiated at 0° and below −20 °C, the photocurrent of the GaN sensor with the ACEL increased by 61% and 81% compared with the photocurrent of the GaN sensor with the bare lens and without a lens, respectively. In this study, a sensor for detecting light with ACEL was demonstrated in low-temperature environments, such as indoor refrigerated storages and external conditions in Antarctica and Arctic. Article in Journal/Newspaper Antarc* Antarctica Arctic IOP Publishing Arctic Bioinspiration & Biomimetics 17 4 046008 |
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Abstract In this study, an artificial compound eye lens (ACEL) was fabricated using a laser cutting machine and polyvinyl alcohol (PVA) solution. A laser cutter was used to punch micro-sized holes (500 μ m diameter—the smallest possible diameter) into an acrylic plate; this punched plate was then placed on the aqueous PVA solution, and the water was evaporated. The plate was used as the mold to obtain a polydimethylsiloxane (PDMS) micro lens array film, which was fixed to a dome-shaped three-dimensional-printed mold for further PDMS curing, and a hemispherical compound eye lens was obtained. Using a gallium nitride (GaN) photodetector, a light detection experiment was performed with the ACEL, bare lens, and no lens by irradiating light at various angles under low temperatures. The photodetector with the ACEL generated a high photocurrent under several conditions. In particular, when the light was irradiated at 0° and below −20 °C, the photocurrent of the GaN sensor with the ACEL increased by 61% and 81% compared with the photocurrent of the GaN sensor with the bare lens and without a lens, respectively. In this study, a sensor for detecting light with ACEL was demonstrated in low-temperature environments, such as indoor refrigerated storages and external conditions in Antarctica and Arctic. |
author2 |
Ministry of Trade, Industry and Energy |
format |
Article in Journal/Newspaper |
author |
Han, Sanghu Sung, Jaebum Ko, Byeongjo Kwon, Minjun Kim, Sewon So, Hongyun |
spellingShingle |
Han, Sanghu Sung, Jaebum Ko, Byeongjo Kwon, Minjun Kim, Sewon So, Hongyun A biomimetic compound eye lens for photocurrent enhancement at low temperatures |
author_facet |
Han, Sanghu Sung, Jaebum Ko, Byeongjo Kwon, Minjun Kim, Sewon So, Hongyun |
author_sort |
Han, Sanghu |
title |
A biomimetic compound eye lens for photocurrent enhancement at low temperatures |
title_short |
A biomimetic compound eye lens for photocurrent enhancement at low temperatures |
title_full |
A biomimetic compound eye lens for photocurrent enhancement at low temperatures |
title_fullStr |
A biomimetic compound eye lens for photocurrent enhancement at low temperatures |
title_full_unstemmed |
A biomimetic compound eye lens for photocurrent enhancement at low temperatures |
title_sort |
biomimetic compound eye lens for photocurrent enhancement at low temperatures |
publisher |
IOP Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1088/1748-3190/ac6c65 https://iopscience.iop.org/article/10.1088/1748-3190/ac6c65 https://iopscience.iop.org/article/10.1088/1748-3190/ac6c65/pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarc* Antarctica Arctic |
genre_facet |
Antarc* Antarctica Arctic |
op_source |
Bioinspiration & Biomimetics volume 17, issue 4, page 046008 ISSN 1748-3182 1748-3190 |
op_rights |
https://iopscience.iop.org/page/copyright https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-3190/ac6c65 |
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Bioinspiration & Biomimetics |
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17 |
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4 |
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046008 |
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1800758068118552576 |