센서학회지 (Journal of Sensor Science and Technology)

  • 제33권2호
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  • Pages.93-97
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  • 2024
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  • 1225-5475(pISSN)
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  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
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MAPI 리간드 치환형 PbS 양자점 기반의 고감도 단파장 적외선 광 검출기 개발

Development of Highly Sensitive SWIR Photodetectors based on MAPI-capped PbS QDs

  • Suji Choi (Advanced mobility system R&D Group, Korea Institute of Industry Technology) ;
  • JinBeom Kwon (Advanced mobility system R&D Group, Korea Institute of Industry Technology) ;
  • Yuntae Ha (Advanced mobility system R&D Group, Korea Institute of Industry Technology) ;
  • Daewoong Jung (Advanced mobility system R&D Group, Korea Institute of Industry Technology)
  • 투고 : 2024.02.16
  • 심사 : 2024.03.19
  • 발행 : 2024.03.31
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초록

With the development of promising future mobility and urban air mobility (UAM) technologies, the demand for LIDAR sensors has increased. The SWIR photodetector is a sensor that detects lasers for the 3D mapping of lidar sensor and is the most important technology of LIDAR sensor. An SWIR photodetector based on QDs in an eye-safe wavelength band of over 1400 nm has been reported. QDs-based SWIR photodetectors can be synthesized and processed through a solution process and have the advantages of low cost and simple processing. However, the organic ligands of QDs have insulating properties that limit their ability to improve the sensitivity and stability of photodetectors. Therefore, the technology to replace organic ligands with inorganic ligands must be developed. In this study, the organic ligand of the synthesized PbS QDs was replaced with a MAPI inorganic ligand, and an SWIR photodetector was fabricated. The analysis of the characteristics of the manufactured photodetector confirmed that the photodetector based on MAPI-capped PbS QDs exhibited up to 26.5% higher responsivity than that based on organic ligand PbS QDs.

키워드

과제정보

이 논문은 2020년도 정부(과학기술정보통신부)의 재원으로 연구개발특구진흥재단의 지원을 받아 수행된 연구임(2020-DD-UP-0348). 본 연구는 2022년도 중소벤처기업부의 기술개발사업 지원에 의한 연구임 [S3366018]. 본 논문은 한국생산기술연구원 기본사업 "전자빔 리소그래피를 통한 양자점 기반 SWIR 이미지 센서 개발(Kitech JF-24-0006)" 지원으로 수행한 연구임.

참고문헌

  1. F. Cao, L. Liu, and L. Li, "Short-wave infrared photodetector", Mater. Today, Vol. 62, pp. 327-349, 2022. https://doi.org/10.1016/j.mattod.2022.11.003
  2. J. F. Klem, J. K. Kim, M. J. Cich, G. A. Keeler, S. D. Hawkins, and T. R. Fortune, "Mesa-isolated InGaAs photodetectors with low dark current", Appl. Phys. Lett., Vol. 95, No. 3, pp. 341-315, 2009.
  3. A. De Iacovo, C. Venettacci, L. Colace, L. Scopa, and S. Foglia, "PbS Colloidal Quantum Dot Photodetectors operating in the near infrared", Sci. Rep., Vol. 6, No. 1, pp. 37913(1)-37913(9), 2016. https://doi.org/10.1038/srep37913
  4. S. M. Swasey, S. M. Copp, H. C. Nicholson, A. Gorovits, P. Bogdanov, and E. G. Gwinn, "High throughput near infrared screening discovers DNA-templated silver clusters with peak fluorescence beyond 950 nm", Nanoscale, Vol. 10, No. 42, pp. 19701-19705, 2018.
  5. U. Bothra, M. Albaladejo-Siguan, Y. Vaynzof, and D. Kabra, "Impact of Ligands on the Performance of PbS Quantum Dot Visible-Near?Infrared Photodetectors", Adv. Opt. Mater., Vol. 11, No. 1, pp. 2201897(1)-2201897(10), 2023.
  6. H. T. Choi, J. H. Kang, J. T. Ahn, J. Y. Jin, J. Y. Kim, S. H. Park, and Y. H. Kim, "Zero-dimensional PbS quantum dot-InGaZnO film heterostructure for short-wave infrared flat-panel imager", ACS Photonics, Vol. 7, No. 8, pp. 1932-1941, 2020.
  7. W. Chen, H. Tang, Y. Chen, J. E. Heger, N. Li, L. P. Kreuzer, Y. Xie, D. Li, C. Anthony, Z. Pikramenou, K. W. Ng, X. W. Sun, K. Wang, and P. Muller-Buschbaum, "Spray-deposited PbS colloidal quantum dot solid for near-infrared photodetectors", Nano Energy, Vol. 78, p. 105254, 2020.
  8. K. Xu, W. Zhou, and Z. Ning, "Integrated structure and device engineering for high performance and scalable quantum dot infrared photodetectors", Small, Vol. 16, No. 47, pp. 2003397(1)-2003397(20), 2020. https://doi.org/10.1002/smll.202003397
  9. Y. Fang, F. Guo, Z. Xiao, and J. S. Huang, "Large gain, low noise nanocomposite ultraviolet photodetectors with a linear dynamic range of 120 dB", Adv. Opt. Mater., Vol. 2, No. 4, pp. 348-353, 2014. https://doi.org/10.1002/adom.201300530
  10. G. N. Ankah, P. Buchele, K. Poulsen, T. Rauch, S. F. Tedde, C. Gimmler, O. Schmidt, and T. Kraus, "PbS quantum dot based hybrid-organic photodetectors for X-ray sensing", Org. Electron., Vol. 33, pp. 201-206, 2016. https://doi.org/10.1016/j.orgel.2016.03.023