Description:
Circularly Polarized Luminescence (CPL) spectroscopy is a powerful technique for studying the stereochemical, conformational, and three-dimensional structures of chiral molecules and materials in the excited state. CPL is a luminescence phenomenon that provides the differential emission intensities of right- and left-circularly polarized light when a chiral molecule is excited by unpolarized light. Thus, CPL spectroscopy can provide information on the excited states properties of the chiral molecule. Together with the electronic ground states information of the molecule provided by Circular Dichroism (CD) spectroscopy, structural information of the molecule can be disclosed.
Application:
CPL-active molecules and materials are potential candidates for a wide range of applications, such as security encoding, bioanalytical probes, liquid crystal display backlights, etc. For recent examples, please check these links:
- R. Gao et al. Circular Polarized Light Activated Chiral Satellite Nanoprobes for the Imaging and Analysis of Multiple Metal Ions in Living Cells. Angew. Chem. Int. Ed. 2019, 131, 3953.
- T. Zhao et al. Enhanced Circularly Polarzied Luminescence from Reorganized Chiral Emitters on the Skeleton of a Zeolitic Imidazolate Framework. Angew. Chem. Int. Ed. 2019, 58, 4978.
- Z.-B. Sun et al. 2,2'-Diamino-6,6'-diboryl-1,1'-binaphthyl: A Versatile Building Block for Temperature-Dependent Dual Fluorescence and Switchable Circularly Polarized Luminescence. Angew. Chem. Int. Ed. 2019, 58, 4840.
- Y. Imai et al. A Smart Sensing Method for Object Identification Using Circularly Polarized Luminescence from Coordination-Driven Self-Assembly. Angew. Chem. Int. Ed. 2018, 57, 8973.
- C. Zhang et al. Magnetic field effects in hybrid perovskite devices. Nat. Phy. 2015, 11, 427.
Specifications:
- Applicable to both solid and liquid samples
- Measurable wavelength range: 250–850 nm
- Slit width: 1–4000 µm
- Cuvette: a rectangular shaped cuvette
- Controllable temperature range: -30 to 130 °C
- Shutter located on both the Ex and Em monochromators
- Available accessories: Permanent magnets (0.2, 0.4, 0.8, 1.0, 1.2 and 1.4 T)
- Application software: Spectral analysis
Location: Y709
Hourly rate: $70 (internal users); $140 (collaborators); $350 (external users)
