Spray-deposited metal-chalcogenide photodiodes for low cost infrared imagers
| Autor: | Pedro Figueiredo, Stephen Neushul, Tommy O. Boykin, Robert E. Peale, Javaneh Boroumand, F. Javier Gonzalez, Nagendra Dhakal, Isaiah O. Oladeji |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Infrared Chalcogenide 02 engineering and technology Integrated circuit 010402 general chemistry 01 natural sciences law.invention chemistry.chemical_compound Responsivity law General Materials Science business.industry Mechanical Engineering Detector Heterojunction 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Photodiode chemistry Mechanics of Materials Thin-film transistor Optoelectronics 0210 nano-technology business |
| Zdroj: | MRS Advances. 5:2013-2022 |
| ISSN: | 2059-8521 |
| DOI: | 10.1557/adv.2020.324 |
| Popis: | Low-cost, light-weight, low-power, large-format, room-temperature, mid-wave infrared (MWIR) detectors are needed for reduced-scale aircraft. An opportunity, suggested by direct-read X-radiography systems, is the use of thin film transistor (TFT) array as read-out integrated circuit (ROIC) for low-cost sensors deposited directly and unpatterned onto this ROIC. TFTs have already been thoroughly optimized for power, weight, large-format, and cost by the flat-panel-display industry. We present experimental investigation of aqueous-spray-deposited, mid-wave-IR, metal-chalcogenide heterojunction CdS/PbS photodiodes for this application. Measured responsivity, detectivity D*, and photoresponse spectra are reported. |
| Databáze: | OpenAIRE |
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