Abstract
Non-radiative recombination in a-Si:H is studied by frequency-resolved photoluminescence spectroscopy (FRS) at excitation densities which are known to lead to geminate recombination. The measurements were performed between 4K-100K and the defect density was varied in the range 1016 cm-3 - 5·1017 cm-3. The dependence of the lifetime distribution on the defect density at low temperature is quantitatively explained in a model where radiative recombination competes with non-radiative tunneling into defect states.
Original language | English |
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Pages (from-to) | 555-558 |
Number of pages | 4 |
Journal | Journal of Non-Crystalline Solids |
Volume | 164-166 |
Issue number | PART 1 |
DOIs | |
Publication status | Published - 2 Dec 1993 |