Electrical Properties of As2S3 Glass
Abstract
Aluminized platelets of As2S3 glass were poled at temperatures as high as 220C and with electric fields up to 16 kV/cm. Electrical measurements on these samples yield the following results: (a) aluminum forms an ohmic contact with the glass, (b) the resistivity rho about 10 to the 11th power ohm- cm, (c) the dielectric constant epsilon about 11, (d) the electrical band gap is 2.40 eV as compared to 2.40 eV for the optical band gap, (e) the depolarization current generated by the samples is not of pyroelectric origin, (f) the polarization charge on the sample is as high as 4 microcoulombs/sq cm, (g) the depolarization current is described by more than one relaxation time, (h) the data fit a trapped charge model better than a dipolar model, (i) the trap levels measured in these experiments are in the range 1.0 to 1.4 eV, and (j) on the basis of these experiments there is no evidence of pyroelectricity in these samples.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1975
- Accession Number
- ADA020552
Entities
People
- Harold H. Byer
- Kimball Kramer
- Lloyd C. Bobb
Organizations
- Frankford Arsenal