PbSe quantum-dot doped borosilicate glasses as saturable absorbers

Erenler B., Özen Y., Karpinsky D. V., Özçelik S.

3nd International Conference on Light and Light-based Technologies (ICLLT), Ankara, Türkiye, 25 - 27 Mayıs 2022, ss.76

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Ankara
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.76
  • Gazi Üniversitesi Adresli: Evet

Özet

Glasses doped with PbSe quantum dots (QDs) have received increasing attention recently owing to their large Bohr radii and broadband near-infrared (NIR) emission. Due to the quantum confinement effect, the photoluminescence (PL) of PbSe QDs spans the entire NIR range depending on quantum dot size [1-3]. The result of stable and tunable emission of PbSe quantum dots makes them excellent candidates for applications in telecommunications, biological imaging and solar cells [4]. In this study, QDs doped glasses were produced by sol-gel method in many stages. The produced PbSe QDs doped borosilicate glasses were characterized by x-ray diffraction (XRD) and Photoluminescence spectroscopy. The optical and structural properties of that doped glasses were investigated. It was determined that the films were the diffraction peaks observed in the orientation of (200) from the XRD pattern. In the results obtained from photoluminescence spectroscopy, a peak was obtained at a wavelength of 1.4 µm and the width of the PL band was found to be around 100 nm.