## SEMICONDUCTING PROPERTIES OF MIXED CRYSTALS two lines giving non-conducting compositions, dividing the phase diagram into three regions of different types of conductivity: โข I. manganese conductivity in the presence o~ Cr 3+ and Fe 3+ โข ;II chromium conductivity in the presence of Mn 4+ and Fe
The stark effect in condensed aromatic hydrocarbons
โ Scribed by M.A. Kurzmack; M.M. Malley
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 255 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The changes in the static electric polarizability upon transition to excited sing!et states are measured by perturbing the absorption spectrum with an intense (lo6 V/cm) electric field. Observations of the Stark effect in a polystyrene malrix are reported foi a series of substituted anthracenes, a group of mndensd aromatic hydrocarbons and a substituted hexatriene.
An applied electric field changes the visible and
๐ SIMILAR VOLUMES
Thermodynamic calculations of metastable equilibria in the H-C-O system are used to evaluate the stability of condensed polycyclic aromatic hydrocarbons (PAHs) and normal alkanes in the solar nebula. The effects of temperature, total pressure (governed by H 2 ), the abundances of gaseous CO and H 2