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سيف مبخوت حمود قايد Saif MABKHOT HAMOOD QAID

Assistant Professor

عضو هيئة تدريس بقسم الفيزياء والفلك

كلية العلوم
College of Science, Physics and Astronomy Dept. Office 2A23
المنشورات
مقال فى مجلة
2012

Structural and spectral investigations of Rhodamine (Rh6G) dye-silica core–shell nanoparticles

Dwayyan, A.S.Al . 2012

Rhodamine (Rh6G) dye-silica core–shell nanoparticles (DSCSNPs) have been prepared by the controlled hydrolysis and condensation of single silica precursor tetraethylorthosilicate (TEOS) using the sol–gel method. Scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray analysis reveal that dye molecules are entrapped in silica (SiO2) shell resulting into core–shell particles of ∼30 nm diameter. These particles are also characterized by X-ray diffraction and Fourier transforms infrared spectroscopy. The results indicate that core–shell particles are all in spherical shape and have a narrow size distribution. The fluorescent and optical properties of core–shell particles have been investigated using fluorescence and UV–Visible absorption spectra. The photoluminescence in solid or liquid medium occurs at the same wavelength. The SiO2 shell restricts the leakage and photobleaching of dye efficiently. These core–shell nanoparticles are found to be highly luminescent and stable.

اسم الناشر
North-Holland
رقم المجلد
34
مجلة/صحيفة
Optical Materials
الصفحات
761-768
مزيد من المنشورات
publications

In the last two decades, the family of metal halide perovskites has received more attention in radiation detection applications. In this work, the radiation detection and dosimetric applicability…

بواسطة S. Aldawood, Syed Mansoor, Ali, Saif M.H. Qaid, Hamid M.Ghaithan, M.S.AlGarawi, Abdullah S.AldwayyanH.KassimAziz A.AzizS.S.AlGamdi
2022
تم النشر فى:
Elsevier
publications

The high crystal quality of formamidium lead bromide perovskite (CH(NH2)2PbBr3 = FAPbBr3) was infiltrated in a mesoporous TiO2 network.

بواسطة Saif MH Qaid, Hamid M Ghaithan, Khulod K AlHarbi, Abrar F Bin Ajaj, Bandar Ali Al-Asbahi, Abdullah S Aldwayyan
2022
تم النشر فى:
Multidisciplinary Digital Publishing Institute
publications

Tuning the emission spectrum of both binary hybrids of poly (9,9′-di-n-octylfluorenyl-2,7-diyl) (PFO) with each poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly[2-…

بواسطة Bandar Ali Al-Asbahi, Mohamad S AlSalhi, Amanullah Fatehmulla, Mohammad Hafizuddin Hj Jumali, Saif MH Qaid, Wafa Musa Mujamammi, Hamid M Ghaithan
2021
تم النشر فى:
Multidisciplinary Digital Publishing Institute