Effect of Er dopant in GaSb bulk crystals grown by vertical Bridgman technique

Photoluminescence characteristics of Cd1-xMnxTe single crystals grown by the vertical Bridgman method

In this paper, we report a systematic investigation of band-edge photoluminescence for Cd1-xMnxTe crystals grown by the vertical Bridgman method. The near-band-edge emissions of neutral acceptor-bound excitons (labeled as L1) were systematically investigated as a function of temperature and of alloy composition. The parameters that describe the temperature variation of the energy were evaluated...

Comparison of Sn-doped and nonstoichiometric vertical-Bridgman-grown crystals of the topological insulator Bi2Te2Se

Dopant-Enhanced Vertical Alignment of Negative Liquid Crystals

A simple method for achieving high-contrast vertical alignment of high birefringence (Dn 0.28) negative dielectric anisotropic liquid crystal mixture using buffed polyimide substrates is demonstrated. By doping a positive, or non-polar dielectric anisotropic compound or mixture to the laterally difluorinated tolane liquid crystal host, an excellent vertical alignment was obtained. This alignmen...

High-Quality GaSe Single Crystal Grown by the Bridgman Method

A high-quality GaSe single crystal was grown by the Bridgman method. The X-ray rocking curve for the studied GaSe sample is symmetric and the Full Width at Half Maximum (FWHM) is only 46 arcs, which is the smallest value ever reported for GaSe crystals. The IR-transmittance is about 66% in the range from 500 to 4000 cm-1. The photoluminescence spectrum at 9.2 K shows a symmetric and sharp excit...

Analysis of CZT Crystals and Detectors Grown in I?ii%%iand the Ukraine by High-Pressure Bridgman Methods

H. Hennon”, M. Schieber*, R.B. James, E. Y. Lee, N. Yang, A.J. Antola& D.II. Morse, C. HackeU E. Tarver, SandiaNational Laboratories~ivermore, CA, N.N. P. Kolesnikov, YU .N. Ivanov, Institute of Solid State Physics, Russian Academy of Sciences, Moscow, Russi~ V. Komar, Institute for Single CrystaIs, National Academy of Science, Kharkov, Ukraine; M.S. Goorsky, H. Yoo~ UCLA, Los Angeles, CA. *Als...