Announcement

Prof. Vikram Dalal, Anson Marston Distinguished Professor at Iowa State University, will deliver a talk titled “Advances in Inorganic Perovskite Solar Cells” on October 13, 2025 (Monday) at 12:00 PM in Seminar Room, 306, DJAC..

Key features include:

  • Accurate high vacuum physisorption analyses of surface area and micropores
  • Simultaneous measurement of up to three samples, three gases, and three temperatures using independent analysis stations, enhancing throughput and precision

Measurement Modes:

  1. Physisorption: surface area (Langmuir and BET), adsorption/desorption isotherm, pore size, pore size distribution, and pore volume
  2. Chemisorption: TPR, TPO, and TPD with pulse-chemisorption to measure active metal area, dispersion, crystallite size, and activation energy

Specification:

  • BET surface area detection limit: 0.01 m2/g (N2 at 77 K); typical reproducibility: 1%
  • Pore size range: 0.35 nm to 500 nm; typical reproducibility ~0.5%
  • P/Po range (XR): <1 x 10-8 to 0.999
  • Sample preparation: 6 integrated degassing stations; temperature control with 2 independent heating zones (ambient to 350oC; up to 450oC with quartz glassware)
  • Available gas modes: Nitrogen, CO2
  • Chemisorption furnace: Maximum temperature of 1000oC