IMPERFECTION PHOTOCONDUCTIVITY IN DIAMOND

Journal Article · Thu Nov 01 04:00:00 EST 1962 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.128.1044· OSTI ID:4772135

elmgren, J A; Hudson, D E

The effect of monochromatic light throughout the visible region on the rate of decay of a persistent internal field in diamond has been studied. The persistent field was generated by spacially-separated trapped electrons and holes, and was sampled by the counting rate of the polarized diamond acting as a nuclear particle counter. Under the influence of light the internal field decayed exponentially with time in a fashion characterized by an intensity- dependent decay constant. The decay constants, normalized to a common photon flux density, varied over more than four orders of magnitude in the photon energy range from 1.8 to 3.5 ev. The results are interpreted in terms of imperfection photoconductivity arising from imperfection levels with photoionization energies of 2.5 and 3.0 ev. This photoconduction model utilizes a decay mechanism which has been overlooked in previous diamond work. An alternate conventional interpretation in terms of detrapping is also presented. (auth)

• Research Organization: Ames Lab., Ames, Iowa
• NSA Number: NSA-17-000573
• OSTI ID: 4772135
• Report Number(s): IS-370; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D , Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 128; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

COUNTERS
DECAY
DEFECTS
DIAMONDS
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ENERGY
IONIZATION
LIGHT
MECHANICS
METALS, CERAMICS, AND OTHER MATERIALS
PHOTOELECTRIC EFFECT
PHOTONS
POLARIZATION
TRAPS