Self-filtering narrowband perovskite photodetector with ultra-narrowband and high spectral rejection ratio

Liao Y., Wang X., Pan Y., Xu Y., Li Q., Zhang X., ...Daha Fazla

APL MATERIALS, cilt.10, sa.10, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 10 Sayı: 10
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1063/5.0120959
  • Dergi Adı: APL MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Compendex, INSPEC, Directory of Open Access Journals
  • Atatürk Üniversitesi Adresli: Evet

Özet

Narrowband photodetectors have broad application prospects in many fields where only a range of specific wavelengths of light needs tobe detected. However, the current narrowband detectors have some disadvantages, such as the integration is difficult, the full width at half-maximum is not narrow enough, and the spectral rejection ratio is not ideal (<= 20). Here, we present a self-filtering photodetector basedon MAPbX3single crystals with a very narrow spectral response and a full width of 15 nm at half maximum. It also shows a high responsivity (similar to 100 mA/W) and a high spectral rejection ratio (similar to 300). What is more, the response spectrum can be tuned within a certain range(from 440 to 560 nm) by varying the halide composition and thus its bandgap. This provides a new design paradigm for self-filtering narrowband photodetectors. (C) 2022 Author(s).