تجاوز إلى المحتوى الرئيسي
User Image

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
2016

Laser induced photocurrent and photovoltage transient measurements of dye-sensitized solar cells based on TiO2 nanosheets and TiO2 nanoparticles

Ghaithan, Hamid M. . 2016

Dye-sensitized solar cells (DSSCs) based on TiO2 nanoparticles and TiO2 nanosheets with exposed {001} facets are investigated using laser-induced photovoltage and photocurrenttransient decay (LIPVCD) measurements. We adopted a simplified version of LIPVCD technique, in which a single illumination light source and a laboratory oscilloscope could be conveniently used for the measurements. Although the {001} surface of TiO2 nanosheets allowed a noticeably slower recombination with the electrolyte, this was counterpoised by a slower electron transport probably due to its planar morphology, resulting in a shorter diffusion length in TiO2 nanosheets. The nanosheet morphology also resulted in less surface area and therefore reduced short circuit current density in the fabricated devices. Our work highlights the fact that the morphological parameters of TiO2 nanosheets finally resulting after electrode film deposition is of no less importance than the reported efficient dye adsorption and slow electron recombination at the surface of individual nanosheets.

اسم الناشر
Pergamon
رقم المجلد
212
مجلة/صحيفة
Electrochimica Acta
الصفحات
992-997
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