Dr. Akrajas Ali Umar Profile

Dr. Akrajas Ali Umar

at Univ Kebangsaan Malaysia

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Author

Publications (3)

Proceedings Article | 21 October 2009 Paper

Highly red luminescence properties from ternary ZnCdTe quantum dots

Norhayati Abu Bakar, Akrajas Ali Umar, Muhamad Mat Salleh, Muahamad Yahaya, Burhanuddin Yeop Majlis

Proceedings Volume 7493, 74935W (2009) https://doi.org/10.1117/12.839808

KEYWORDS: Zinc, Luminescence, Quantum dots, Cadmium, Quantum efficiency, Light emitting diodes, Solar cells, Binary data, Doping, Semiconductor lasers

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Proceedings Article | 1 July 2005 Paper

Self-assembly layer of amino fluorenone derivative as optical receptor to detect cyclohexane vapour

Muhammad Yahaya, Muhamad Mat Salleh, Akrajas Ali Umar

Proceedings Volume 5836, (2005) https://doi.org/10.1117/12.608493

KEYWORDS: Molecules, Atrial fibrillation, Quartz, Molecular self-assembly, Absorption, Silicon, Thin films, Molecular interactions, Self-assembled monolayers, Receptors

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Proceedings Article | 2 April 2004 Paper

Quartz crystal microbalance coated with poly-L-proline self-assembly layer to detect organic gases

Muhamad Mat Salleh, Akrajas Ali Umar, Muhammad Yahaya

Proceedings Volume 5276, (2004) https://doi.org/10.1117/12.522746

KEYWORDS: Crystals, Molecules, Molecular self-assembly, Sensors, Gases, Quartz, Gas sensors, Sensing systems, Molecular interactions, Polymers

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