Transient photoconductivity spectroscopy of polycrystalline diamond films

Journal Article · Wed May 31 00:00:00 EDT 2000 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2000V030N05ABEH001743· OSTI ID:21442707

Klimentov, Sergei M; Garnov, Sergei V ^[1]; Pimenov, S M; Konov, Vitalii I ^[2]; Gloor, S; Luthy, W; Weber, H P ^[3]

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1. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
2. Natural Science Center, A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
3. Institute of Applied Physics, University of Bern (Switzerland)

Photoexcitation spectra of nonequilibrium charge carriers in polycrystalline diamond films were measured in the visible region (430 - 690 nm) by the contact-less transient photoconductivity technique with a tunable optical parametric oscillator. Preliminary irradiation of samples by intense UV laser pulses resulted in the redistribution of the population of deep trap levels and was accompanied by substantial long-term enhancement of photoconductivity in the spectral band at 2 eV. (laser applications and other topics in quantum electronics)

• OSTI ID: 21442707
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 30, Issue 5; Other Information: DOI: 10.1070/QE2000v030n05ABEH001743; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHARGE CARRIERS
DIAMONDS
EV RANGE
EXCITED STATES
IRRADIATION
LASERS
PARAMETRIC OSCILLATORS
PHOTOCONDUCTIVITY
POLYCRYSTALS
PULSES
RADIATION EFFECTS
SPECTROSCOPY
THIN FILMS
ULTRAVIOLET RADIATION
CARBON
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EQUIPMENT
FILMS
MINERALS
NONMETALS
OSCILLATORS
PHYSICAL PROPERTIES
RADIATIONS