ODMR optically detected magnetic

Fig. 9. ODMR investigations at T = 1.4 K of Pd(2-thpy)2 dissolved in an n-octane Shpol skii matrix. Concentration = 10 mol/1 cw excitation Ag c = 330 nm (30.3 x 10 cm 0- Detection of the emission at 18418 cm (Tj —> Sq transition), (a) Zero-field ODMR (optically detected magnetic resonance) spectrum (b) Zero-field microwave recovery ODMR signal after pulsed microwave excitation with a microwave frequency of 2886 MHz. The best fit of the recovery signal is obtained with Eq. (4). (Compare Ref. [61])...

JT Jahn-Teller ODMR Optically detected magnetic reso-... 

Optically detected magnetic resonance (ODMR) has yielded valuable information about dynamics of long-lived pholoexcitations of conjugated polymers. The technique relies upon the paramagnetic interaction of excitations with an applied magnetic field. For a particle with non-zero spin, placed in a magnetic field, the Hamiltonian is ... 

Optically detected magnetic resonance (ODMR) studies of -iT-conjugated polymer-based hght emitting diodes (LEDs) J. Shinar Organic Electroluminescent Materials and Devices, S. Miyata and H.S. Nalwa, Eds., Gordon and Breach, Amsterdam, pp.177-202... 

D was determined by measuring the Ams = 2 EPR transition, where ms is the spin quantum number. Several years later, D and E were obtained directly by observation of the Ams = 1 EPR signals/33 1 In 1973, Zuclich et alP redetermined the triplet-state splitting parameters of tyrosine using optically detected magnetic resonance (ODMR) spectroscopy. 

ODENDOR ODLTS ODMR OICTS OLCAO OMVPE OSC optically detected electron nuclear double resonance optical deep level transient spectroscopy optically detected magnetic resonance optical isothermal capacitance transient spectroscopy orthogonalised linear combination of atomic orbitals organo-metallic vapour phase epitaxy on-surface-cracking... 

The charged quasiparticles can be probed by electrical dc conductivity measurements (for polarons), magnetic susceptibility (for polarons and bipolarons), electron-spin resonance (ESR) (for polarons) and optical measurements (for polarons and bipolarons). As ESR is well suited for studying spin-carrying polarons, optical modification of the ESR (optically detected magnetic resonance ODMR) can be applied to link the emissive or absorbing properties of the polymer with its spin state. 

Optically Detected Magnetic Resonance (ODMR). The first optically detected magnetic resonance experiment was done using the 3Pi state of... 

Triplets, and most kinds of charge carriers (see Chapter 11, Section IV.C), have spin, so they can be monitored magnetically, and changes in their concentrations under various conditions can be investigated by methods such as optically detected magnetic resonance (ODMR). An example of such a method applied to CPs is presented in Ref. 140. 

In this section, results of three different experimental methods that have been apphed to Pd(2-thpy)2 are reported. Information from optically detected magnetic resonance (ODMR spectroscopy), microwave-recovery measurements, and phosphorescence microwave double resonance (PMDR spectroscopy) is presented. These methods complement each other to a large extent. The discussion presented here can be fimited to the basic impfications of the methods, since a comprehensive review by Max Glasbeek concerning these aspects is found in Volume 213 of this series [90] and a detailed report by Glasbeek, Yersin et al. [61] concerning Pd(2-thpy)2 has only recently been published. 

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