Researcher Image
أكرم نوري صادق - Akram N. Al-Shadeedi
PhD - assistant professor
College of Science , Department of Physics
[email protected]
Qualifications

• Assistant Dean for Administrative Affairs / 2023-2024

• Secretary of the College Council / 2021- 2023

• Undergraduate Coordinator of Physics Department / 2107-2020

Teaching

Assistant Lecturer / 2009-2011

University of Bagdad, College of Science, Department of Physics

• Taught “Mechanics lab.” for 1st stage physics students

• Taught “General Physics lab.” for non-physicist students

Ph.D. student / 2011-2017

Kent State University, College of Art and Science, Department of Physics • Teaching Assistant

• Research Assistance

Lecturer / 2017-2022

University of Bagdad, College of Science, Department of Physics

• Taught the English Language to graduate students

• Taught “Physics of Semiconductors” for 3rd-stage physics students

• Taught “Analytical Mechanics” for 2nd-stage physics students

• Taught “Solid State Physics Lab.” for 4th-stage physics students

Assistance Professor / 2022- present University of Bagdad, College of Science, Department of Physics

• Teach the English Language to graduate students

• Teach “Analytical Mechanics” for 2nd- stage physics students

• Teach “Solid State Physics Lab.” to 4th-stage physics students

Publication Date
Mon Nov 04 2019
Journal Name
Applied Physics Letters
Stability of organic permeable base transistors
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Organic Permeable Base Transistors (OPBTs) reach a very high transit frequency and large on-state currents. However, for a later commercial application of this technology, a high operational stability is essential as well. Here, the stability of OPBTs during continuous cycling and during base bias stress is discussed. It is observed that the threshold voltage of these transistors shifts toward more positive base voltages if stressed by applying a constant potential to the base electrode for prolonged times. With the help of a 2D device simulation, it is proposed that the observed instabilities are due to charges that are trapped on top of an oxide layer formed around the base electrode. These charges are thermally released after rem

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Publication Date
Thu Aug 11 2016
Journal Name
Advanced Materials
Contact Resistance Effects in Highly Doped Organic Electrochemical Transistors
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Publication Date
Sat Jun 01 2019
Journal Name
Synthetic Metals
Modeling tunnel currents in organic permeable-base transistors
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Publication Date
Thu Dec 20 2018
Journal Name
Advanced Electronic Materials
Scaling of High‐Performance Organic Permeable Base Transistors
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Organic permeable‐base transistors (OPBTs) show potential for high‐speed, flexible electronics. Scaling laws of OPBTs are discussed and it is shown that OPBT performance can be increased by reducing their effective device area. Comparing the performance of optimized OPBTs with state‐of‐the‐art organic field‐effect transistors (OFETs), it is shown that OPBTs have a higher potential for an increased transit frequency. Not only do OPBTs reach higher transconductance values without the need for sophisticated structuring techniques, but they are also less sensitive to parasitic contact resistances. With the help of a 2D numerical model, the reduced contact resistances of OPBTs are explained by a homogeneous injection of current acros

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Publication Date
Fri May 11 2018
Journal Name
Nanotechnology
Doped bottom-contact organic field-effect transistors
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Publication Date
Mon Jan 15 2018
Journal Name
Scientific Reports
Tuning charge carrier transport and optical birefringence in liquid-crystalline thin films: A new design space for organic light-emitting diodes
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Abstract<p>Liquid-crystalline organic semiconductors exhibit unique properties that make them highly interesting for organic optoelectronic applications. Their optical and electrical anisotropies and the possibility to control the alignment of the liquid-crystalline semiconductor allow not only to optimize charge carrier transport, but to tune the optical property of organic thin-film devices as well. In this study, the molecular orientation in a liquid-crystalline semiconductor film is tuned by a novel blading process as well as by different annealing protocols. The altered alignment is verified by cross-polarized optical microscopy and spectroscopic ellipsometry. It is shown that a change in alignment of the </p> ... Show More
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Publication Date
Thu Jun 01 2017
Journal Name
Organic Electronics
Patterning organic transistors by dry-etching: The double layer lithography
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Publication Date
Fri Sep 23 2016
Journal Name
Spie Proceedings
Quantifying charge trapping and molecular doping in organic p-i-n diodes
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Publication Date
Wed Nov 16 2016
Journal Name
Acs Applied Materials &amp; Interfaces
Minority Currents in n-Doped Organic Transistors
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Publication Date
Thu Dec 01 2016
Journal Name
Organic Electronics
Charge trapping in doped organic Zener diodes
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