Photoconductivity in MgF2
- 7 November 1975
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 8 (21) , 3621-3628
- https://doi.org/10.1088/0022-3719/8/21/032
Abstract
Photoconductivity in MgF2 containing F centres and F2 centres has been investigated over the spectral range from 3.0 eV to 5.8 eV with F centre concentrations ranging from 3*1015 cm-3 to 2*1017 cm-3. Evidence is presented that at concentrations above 3*1016 cm-3, F centres are the main electron traps in the crystal. From the temperature dependence of the photoresponse between 293K and 105K it is estimated that the relaxed excited state of the F centre is about 0.07 eV below the conduction band of the crystal. PHotoconductivity which originates from F2 centres has been investigated.Keywords
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