Publications

JOURNAL PUBLICATIONS

1. ElAfandy, R.T., AbuElela, A.F., Mishra, P., Janjua, B., Oubei, H.M., Büttner, U., Majid, M.A., Ng, T.K., Merzaban, J.S. and Ooi, B.S., “Nanomembrane-Based, Thermal-Transport Biosensor for Living Cells”, Small, (2016) doi:10.1002/smll.201603080.
2. ElAfandy, R.T., Majid, M. A., Ng, T. K., Zhao, L., Cha, D. and Ooi, B. S., “Exfoliation of Threading Dislocation-Free, Single-Crystalline, Ultrathin Gallium Nitride Nanomembranes”. Adv. Funct. Mater. 24, 16, 2305 (2013).
3. ElAfandy, R.T., Ng, T.K., Cha, D., Zhang, M., Bhattacharya P. and Ooi, B.S., “Reduced thermal quenching in indiumrich self-organized InGaN/GaN quantum dots”, J. Appl. Phys. 112, 063506 (2012).
4. ElAfandy, R.T., Mishra, P., Janjua, B., Oubei, H.M., Ng, T.K. and Ooi,B.S., “Optical Modulation Response of Free-Standing GaN Nanomembranes to external stress”, (Under preparation).
5. ElAfandy, R.T., Ebaid, M., Jung-Wook, Ooi, B.S., “flexible, nanowire-based InGaN photoanode”, (Under preparation).
6. Oubei, H.M., Zedini, E., ElAfandy, R.T., Kammoun, A., Ng, T.K., Hamdi, M., Alouini, M.S. and Ooi, B.S. "A Simple Statistical Channel Model for Temperature Induced Turbulence in Underwater Wireless Optical Communication Systems", Optics Letters, (2017), (accepted).
7. Oubei, H.M., ElAfandy, R.T., Park, K.H., Ng, T.K., Alouini, M.S. and Ooi, B.S. “Performance of Underwater Wireless Optical Communications Links in the Presence of Different Air Bubbles Populations”, IEEE Photonics Journal 9,2,(2016)
8. Prabaswara, A., Stowe, D.J., Janjua B., Ng, T.K., Anjum, D. H., Longo, P., Zhao C., Elafandy, R.T., Li, X., Alyamani A.Y., El-Desouki, M.M. and Ooi, B.S. “Probing localized quantum-dot-like emissions in InGaN nanodots-in- disks wires using nano-cathodoluminescence”, J. Nanophotonics, (accepted).
9. Janjua, B., Ng, T.K., Zhao, C., Parabaswara, A., Consiglio, G.B., Priante, D., Shen, C., Elafandy, R.T., Anjum, D.H., Alhamoud, A.A., Alatawi, A.A., Yang, Y.,Alyamani, A.Y.,El-Desouki, M.M., Ooi, B.S.. “True Yellow Light-Emitting Diodes as Phosphor for Tunable Color-Rendering Index Laser-Based White Light”, ACS Photonics, (2016).
10. Omran, H., ElAfandy, R.T., Arsalan, M., and Salama, K.N., “Direct Mismatch Characterization of femto-Farad Capacitors”, IEEE transactions on circuits and systems II, 63, 2, 151-155, (2016).
11. Zhao, C., Ng, T.K., ElAfandy, R.T., Prabaswara, A., Consiglio, G.B., Ajia, I.A., Roqan, I.S., Janjua, B., Shen, C., Eid, J., Alyamani, A.Y., El-Desouki, M.M., and Ooi. B.S. “Droop-Free, Reliable, and High-Power InGaN/GaN Nanowire Light Emitting Diodes for Monolithic Metal-Optoelectronics”. Nano Letters 16 (7), 4616-4623 (2016).
12. Mishra, P., Janjua, B., Ng, T.K., Anjum, D.H., Elafandy, R.T., Prabaswara, A., Shen, C., Salhi, A., Alyamani, A.Y., ElDesouki, M.M., and Ooi, B.S., "On the optical and microstrain analysis of graded InGaN/GaN MQWs based on plasma assisted molecular beam epitaxy," Opt. Mater. Express 6, 2052-2062 (2016).
13. Slimane, A.B., Najar, A., ElAfandy, R.T., San-Román, D.P., Anjum, D., Ng, T.K., and Ooi, B. S. "On the phenomenon of large photoluminescence red shift in GaN nanoparticles". Nanoscale Research Letters, 8, 342 (2013).

FEATURING NEWS ARTICLES

1. “Sifting through cells using heat”, Nature Middle east, 30 Nov (2016), doi:10.1038/nmiddleeast.2016.213.
2. “Thermal-Transport Biosensor Distinguishes Different Types of Cancer”, Advanced Science News, 2 Feb (2017).
3. "Nano-sized sensors provide unprecedented data on how heat diffuses in and out of living cells", Phys.org, 14 Apr (2017).

PATENTS

1. Elafandy, R.T., Ooi, B.S. “Defect free single crystal thin layer”, U.S. Patent 14/775,656, Sept. 11 2015.
2. Ooi, B.S., Majid, M.A. and Elafandy, R.T. “Controlling the emission wavelength in group III-V semiconductor laser diodes”, U.S. Provisional Patent 62184111, Jun. 24 2015.
3. Elafandy, R.T., Ooi, B.S. “A high resolution, nanomembrane-based, thermal diffusivity biosensor for living cells”, U.S. Provisional Patent 62280224, Jan. 19 2016.
4. Elafandy, R.T., Ebaid, M., Ooi, B.S., NG, T.K., “Flexible articial leaves for hydrogen production and methods for making” Provisional Patent 62384882, Sept., 08 2016.

CONFERENCE PRESENTATIONS

1. ElAfandy, R.T., Majid, M. A., Mishra, P., Ng, T. K., Ooi, B. S., "Bandgap emission modulation of gallium nitride nanomembranes due to external stretching," the International Society for Optics and Photonics (SPIE) Photonics West, San Fransisco (2016).
2. ElAfandy, R.T., “Optical Modulation Response of Free-Standing, Chemically Exfoliated, Gallium Nitride Nanomembranes to Uniaxial Applied Stress Field” Photonics Global Student Conference, NTU, Singapore (2015). (Invited Talk)
3. ElAfandy, R.T., Mishra, P., Majid, M. A., Al-Jabr, A., Ng, T. K., Ooi, B. S., “Optical Modulation Response of FreeStanding Gallium Nitride Nanomembranes to Uniaxial Applied Stress Field ”, 7th International Conference on Materials for Advanced Technologies (ICMAT), Singapore. (2015).
4. ElAfandy, R.T., Majid, M. A., Ng, T. K., Zhao, L., Cha, D. and Ooi, B. S. “Chemical exfoliation and optical characterization of threading-dislocation-free gallium-nitride ultrathin nanomembranes”, the International Society for Optics and Photonics (SPIE) Photonics Asia, Beijing (2014).
5. ElAfandy, R.T., and Ooi, B. S., “Towards Energy Efficient Materials: Exfoliation of Threading Dislocation free Gallium Nitride Nanomembranes”. KAUST-NSF Conference on Electronic Materials, Devices, and Systems for a Sustainable Future, KAUST, Saudi Arabia, 9-Feb. (2013). (Best poster award).
6. ElAfandy, R.T., Majid M.A., Ng, T.K., and Ooi, B., "Exfoliation of dislocation free single-crystalline GaN layer", 7th International Conference on Materials for Advanced Technologies (ICMAT), Singapore. ICMAT13-A-3326. (2013). (Invited talk).
7. ElAfandy, R.T., Ng, T.K., Cha, D., Zhang, M., Bhattacharya P. and Ooi, B.S., “Optical and micro-structural characterizations of MBE grown indium gallium nitride polar quantum dots”, HONET, pp. 201 – 204. (2011).
8. Slimane, A. B., Elafandy, R.T., Najar, A., San-Roman-Alerigi, D. P., Anjum, D., Ng, T. K., Ooi, B. S., “Observation of Ultra-broadband Emission from Highly Disordered GaN Nanoparticles”, International Conference on Materials for Advanced Technologies (ICMAT), Suntec, Singapore, (2013).
9. Slimane, A. B., ElAfandy, R.T., Gasim, A., Najar, A., Majid, M.A., Ng, T. K. and Ooi, B. S., “III-Nitride nanostructures for Solid State Lighting”, Saudi International Electronics, Communications and Photonic Conference (SIECPC), Riyadh, KSA, (2013). (Invited Talk)
10. Ooi, B.S., Najar, A., Slimane, A.B., ElAfandy, R.T., Gasim, A., Li, Q. and Ng, T.K. “GaN-based Nano-Pores and NWs Fabricated Using Electroless Chemical Etching Process”, ECS Meeting Abstr. MA2012-01 822. (2012).