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Article
Effects of Temperature and Concentration on Spectroscopic Behaviors of Laser Dye

Authors: Bahaa T. Chiad --- Omar S. Shafeq
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2016 Volume: 12 Issue: 1 Pages: 35-39
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

In this work, the fluorescence spectra of an organic lasing dye were recorded at different temperatures and doping concentrations. Results showed that when the donor concentration fixed and the acceptor concentrations varies for two temperatures (room and low) and for both solvents (ethanol and methanol) used in this work, the peaks of emission of donor and acceptor show a small blue shift. However, this blue shift increases with increasing the acceptor concentrations against donor concentration.


Article
Effects of Temperature and Concentration on Spectroscopic Behaviors of Laser Dye
تأثيرات درجة الحرارة والتركيز على السلوكيات الطيفية لصبغة الليزر

Authors: Bahaa T. Chiad --- Omar S. Shafeq
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2017 Volume: 13 Issue: 1 Pages: 35-39
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

In this work, the fluorescence spectra of an organic lasing dye were recorded at different temperatures and doping concentrations. Results showed that when the donor concentration fixed and the acceptor concentrations varies for two temperatures (room and low) and for both solvents (ethanol and methanol) used in this work, the peaks of emission of donor and acceptor show a small blue shift. However, this blue shift increases with increasing the acceptor concentrations against donor concentration.


Article
Effect of Temperature on Silicon Carriers Mobilities Using MATLAB

Author: Saad N. Ibrahim
Journal: Al-Mustansiriyah Journal of Science مجلة علوم المستنصرية ISSN: 1814635X Year: 2017 Volume: 28 Issue: 3 Pages: 214-219
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

The effect of temperature on the electron and hole mobilities in silicon is studied using MATLAB. A theoretical study has been used for the electrons mobility and holes in silicon. The resulting data allows one to obtain the electron mobility and the hole mobility as a function of doping concentration and continuous temperature range between (200-550 K).

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