Highly Efficient Microscale Gallium Arsenide Solar Cell Arrays as Optogenetic Power Options
Optogenetics is one of the most powerful investigation tools in neuroscience research. A major engineering challenge is the wireless power supply needed to operate the light-emitting diodes (LEDs) and generate over 1 mW/mm<sup>2</sup> optical power density required to activate opsins. He...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8631008/ |
| _version_ | 1828963146195271680 |
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| author | Sofian Obaid Luyao Lu |
| author_facet | Sofian Obaid Luyao Lu |
| author_sort | Sofian Obaid |
| collection | DOAJ |
| description | Optogenetics is one of the most powerful investigation tools in neuroscience research. A major engineering challenge is the wireless power supply needed to operate the light-emitting diodes (LEDs) and generate over 1 mW/mm<sup>2</sup> optical power density required to activate opsins. Here, we describe design strategies to construct gallium arsenide microscale solar cells and approaches to integrate them into array structures as efficient optogenetic power options. The photovoltaic (PV) system outputs an electric power of 2.30 mW with an open-circuit voltage (V<sub>oc</sub>) of 4.97 V and a short-circuit current (I<sub>sc</sub>) of 0.59 mA under direct infrared illumination. We show that this power level is enough to operate both blue and yellow LEDs and provide optical power densities of 3.5 and 2.3 mW/mm<sup>2</sup>, respectively. This paper provides a guideline to design efficient PV systems as power supplies for optogenetics and other biomedical implants. |
| first_indexed | 2024-12-14T10:20:39Z |
| format | Article |
| id | doaj.art-3c176d5dab00402e9597a9e948cc3690 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-14T10:20:39Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-3c176d5dab00402e9597a9e948cc36902022-12-21T23:06:36ZengIEEEIEEE Photonics Journal1943-06552019-01-011111810.1109/JPHOT.2019.28960058631008Highly Efficient Microscale Gallium Arsenide Solar Cell Arrays as Optogenetic Power OptionsSofian Obaid0Luyao Lu1https://orcid.org/0000-0002-8784-2854Department of Biomedical Engineering, The George Washington University, Washington, DC, USADepartment of Biomedical Engineering, The George Washington University, Washington, DC, USAOptogenetics is one of the most powerful investigation tools in neuroscience research. A major engineering challenge is the wireless power supply needed to operate the light-emitting diodes (LEDs) and generate over 1 mW/mm<sup>2</sup> optical power density required to activate opsins. Here, we describe design strategies to construct gallium arsenide microscale solar cells and approaches to integrate them into array structures as efficient optogenetic power options. The photovoltaic (PV) system outputs an electric power of 2.30 mW with an open-circuit voltage (V<sub>oc</sub>) of 4.97 V and a short-circuit current (I<sub>sc</sub>) of 0.59 mA under direct infrared illumination. We show that this power level is enough to operate both blue and yellow LEDs and provide optical power densities of 3.5 and 2.3 mW/mm<sup>2</sup>, respectively. This paper provides a guideline to design efficient PV systems as power supplies for optogenetics and other biomedical implants.https://ieeexplore.ieee.org/document/8631008/Solar cellsoptogeneticspower supplyoptoelectronicstransfer printing |
| spellingShingle | Sofian Obaid Luyao Lu Highly Efficient Microscale Gallium Arsenide Solar Cell Arrays as Optogenetic Power Options IEEE Photonics Journal Solar cells optogenetics power supply optoelectronics transfer printing |
| title | Highly Efficient Microscale Gallium Arsenide Solar Cell Arrays as Optogenetic Power Options |
| title_full | Highly Efficient Microscale Gallium Arsenide Solar Cell Arrays as Optogenetic Power Options |
| title_fullStr | Highly Efficient Microscale Gallium Arsenide Solar Cell Arrays as Optogenetic Power Options |
| title_full_unstemmed | Highly Efficient Microscale Gallium Arsenide Solar Cell Arrays as Optogenetic Power Options |
| title_short | Highly Efficient Microscale Gallium Arsenide Solar Cell Arrays as Optogenetic Power Options |
| title_sort | highly efficient microscale gallium arsenide solar cell arrays as optogenetic power options |
| topic | Solar cells optogenetics power supply optoelectronics transfer printing |
| url | https://ieeexplore.ieee.org/document/8631008/ |
| work_keys_str_mv | AT sofianobaid highlyefficientmicroscalegalliumarsenidesolarcellarraysasoptogeneticpoweroptions AT luyaolu highlyefficientmicroscalegalliumarsenidesolarcellarraysasoptogeneticpoweroptions |