{"id":15459,"date":"2024-08-02T09:39:36","date_gmt":"2024-08-02T07:39:36","guid":{"rendered":"https:\/\/www.ufe.cz\/research\/synthesis-and-characterization-of-nanomaterials\/laboratories\/laborator-pro-optickou-charakterizaci-materialu\/"},"modified":"2025-07-03T10:13:40","modified_gmt":"2025-07-03T08:13:40","slug":"laboratory-for-optical-characterization-of-materials","status":"publish","type":"page","link":"https:\/\/www.ufe.cz\/en\/research\/synthesis-and-characterization-of-nanomaterials\/laboratories\/laboratory-for-optical-characterization-of-materials\/","title":{"rendered":"Laboratory for optical characterization of materials"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t

Photoluminescence spectroscopy is a contactless, non-destructive method that provides information about impurity levels, bandgap, recombination mechanisms, and material quality in general. Our setup, designed and assembled by the team members, enables sensitive and high-resolution steady-state and time-resolved measurements over broad spectral (300-9000 nm) and temperature (4-300 K) ranges. This exceptionally broad spectral range allows us to investigate a wide range of physical phenomena and materials, including semiconductors, glasses, and ceramics.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t

Key experimental setups<\/strong>:<\/strong><\/p>

Low-temperature photoluminescence (4-300K) in the UV \u2013 visible-IR- spectral range (200\u202fnm \u2013 9000\u202fnm)<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t
  • Closed-cycle Helium cryostat (Sumitomo);<\/li>
  • Monochromator and spectrograph: FHR 1000 and iHR 320 (Horiba);<\/li>
  • FTIR spectrometer Nicolet 5700;<\/li>
  • Detectors: GaAs photomultiplier with water-cooled thermoelectric coolers (R943-02, C10372-02, Hamamatsu;160-930 nm), LN cooled high-purity Ge photodiode (Edinburg Instruments EI-L, 0.8-1.8 \u00b5m), Back-illuminated UV enhanced CCD (Synapse BIUV, Horiba, 0.2-1.1 \u00b5m), TE cooled InGaAs (Hamamatsu; 0.5-2.6 \u00b5m), LN cooled InSb (2-5.5 \u00b5m), LN cooled MCT-A (0.8-22 \u00b5m).<\/li>
  • Light sources: Ar (514 nm), HeCd (325 nm), HeNe (632.8 nm), and solid-state lasers of various wavelengths (473,515, 532, 650, 800, 980, 1064 nm). Passively Q-switched microchip laser PULSELAS-P-355-200 (355 nm, 532 nm, 1064 nm), monochromatic light source (MLS-150-150, Quantum Design).<\/li><\/ul><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
    \n\t\t\t\t\t\t
    \n\t\t\t\t\t
    \n\t\t\t
    \n\t\t\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t\t\t

    UV\/Visible spectrometer<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

    \n\t\t\t\t
    \n\t\t\t\t\t\t\t
    • Specord 210 (190\u20131100 nm) equipped with (a) Oxford Instruments OptistatDN liquid nitrogen optical cryostat enables absorption measurements at temperatures in the range of 77 K to 500 K; (b) absolute and variable angle reflectance measurement attachment.<\/li><\/ul><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
      \n\t\t\t\t\t\t
      \n\t\t\t\t\t
      \n\t\t\t
      \n\t\t\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

      Photoluminescence spectroscopy is a contactless, non-destructive method that provides information about impurity levels, bandgap, recombination mechanisms, and material quality in general. Our setup, designed and assembled by the team members, enables sensitive and high-resolution steady-state and time-resolved measurements over broad spectral (300-9000 nm) and temperature (4-300 K) ranges. This exceptionally broad spectral range allows us […]<\/p>\n","protected":false},"author":5,"featured_media":10608,"parent":15442,"menu_order":32,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"acf":[],"_links":{"self":[{"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/pages\/15459"}],"collection":[{"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/comments?post=15459"}],"version-history":[{"count":0,"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/pages\/15459\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/pages\/15442"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/media\/10608"}],"wp:attachment":[{"href":"https:\/\/www.ufe.cz\/en\/wp-json\/wp\/v2\/media?parent=15459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}