Optically detected magnetic resonance studies of undoped a-Si:H
- Univ. of Utah, Salt Lake City, UT (United States). Dept. of Physics
Photogenerated carrier dynamics in undoped a-Si:H have been studied by photoinduced absorption (PA), photoluminescence (PL) and their respective optically detected magnetic resonances: PADMR and PLDMR. The authors have detected for the first time the g= 4 resonance in PADMR, in addition to the previously measured narrow and broad resonances at g {approx} 2. They compare the PADMR and PLDMR resonances over a broad spectral range of detection energies and conclude from the similarities that they share a common underlying mechanism. The PADMR spectra of the narrow and the broad resonances at g {approx} 2, measured in the spectral range of 0.7 to 1.7 eV, suggest that a correlation exists between the two resonances and PA.
- OSTI ID:
- 527692
- Report Number(s):
- CONF-960401--; ISBN 1-55899-323-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Interaction of singlet excitons with polarons in wide band-gap organic semiconductors: A quantitative study
Spin dependent recombination in conjugated polymers: An optically detected magnetic resonance study