Dr. Muhammad Imran Profile

Dr. Muhammad Imran

Assistant Professor

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Publications (1)

SPIE Journal Paper | 15 June 2016

Multilayer crack-free hybrid coatings for functional devices

Shumaila Islam, Noriah Bidin, Saira Riaz, Shahzad Naseem, Mohd Marsin Sanagi, Muhammad Imran

JNP, Vol. 10, Issue 02, 026026, (June 2016) https://doi.org/10.1117/12.10.1117/1.JNP.10.026026

KEYWORDS: Multilayers, Thin films, Refractive index, Thin film coatings, Optical coatings, Silica, Reflectivity, Particles, Glasses, Reflection

Read Abstract +

Porous acid catalyzed TiO2 single, SiO2-TiO2 hybrid, and TiO2/SiO2-TiO2/SiO2 multilayer coatings are synthesized and characterized for optical and electro-optical applications. The reflection value is reasonably reduced from the surface of the glass by integrating sol–gel based spin-coated single and multilayer thin films. Structurally, the films show uniform, crack-free, and porous nanofilms with good surface roughness of below 10 nm, which has potential for optical applications. Wide range tunability of refractive index (2.83 to 1.59) with more than 78% optical transparency is observed. The multilayered reflection profile is observed around 0.18%, so these coatings are desirable for optochemical functional devices.

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