Ø  Fahmi F. Muhammad, Khaulah Sulaiman, Thermal Stability and Reproducibility Enhancement of Organic Solar Cells by Tris(hydroxyquinoline)gallium Dopant Forming a Dual Acceptor Active Layer, ARO-The Scientific Journal of Koya University 6(2)(2019) 69-78 [Link] (WoS). DOI:

ØShilan S. Hameed, Fahmi F. Muhammad, Rohayanti Hassan, Faisal Saeed, Gene Selection and Classification in Microarray Datasets using a Hybrid Approach of PCC-BPSO/GA with Multi Classifiers, Journal of Computer Science 14(6)(2018)868-880 [Link]. (SCOPUS, CiteScore = 0.47). DOI: 10.3844/jcssp.2018.868.880

Ø  Shilan S. Hameed, Rohayanti Hassan, Fahmi F. Muhammad, Selection and classification of gene expression in autism disorder: Use of a combination of statistical filters and a GBPSO-SVM algorithm, PLOS One 12(11)(2017) e0187371 [Link] (IF = 2.806 /Q1). DOI: 10.1371/journal.pone.0187371

Ø  Fahmi F. Muhammad, Kamal A. Ketuly and Mohd Y. Yahya, Effect of thermal annealing on a ternary organic solar cell incorporating Gaq3 organometallic as a boosting acceptor, Journal of Inorganic and Organometallic Polymers and Materials  28(1)(2018)  [Link] (IF = 1.577 /Q2). DOI: 10.1007%2Fs10904-017-0734-2

Ø  Fahmi F. Muhammad, Mohd Y. Yahya, Shilan S. Hameed, Fakhra Aziz, Khaulah Sulaiman, Mariwan A. Rasheed and Zubair Ahmad, Employment of Single-diode Model to Elucidate the Variations in Photovoltaic Parameters Under Different Electrical and Thermal Conditions, PLOS One 12(8)(2017) e0182925 [Link] (IF = 2.806 /Q1). DOI: 10.1371/journal.pone.0182925

Ø  Zubair Ahmad, Farid Touati, Fahmi F. Muhammad, Mansoor Ani Najeeb, R. A. Shakoor, Effect of ambient temperature on the efficiency of the PCPDTBT: PC71BM BHJ solar cells, Applied Physics A (2017) 123: 486 [Link] (IF = 1.45 /Q3 ). DOI: 10.1007/s00339-017-1098-8

Ø  Fahmi F. Muhammad, Mohd Y Yahya, Fakhra Aziz, Mariwan A Rasheed, Khaulah Sulaiman, Tuning the extinction coefficient, refractive index, dielectric constant and optical conductivity of Gaq3 films for the application of OLED displays technology,  Journal of Materials Science: Materials in Electronics, 28(19)(2017)14777-14786 [Link]  (IF = 2.019 /Q2). DOI: 10.1007/s10854-017-7347-y

Ø  Noshin Fatima, Muhammad M. Ahmed, Khasan M. Karimov, Zubair Ahmad & F.F. Muhammad, Optical sensors based on the NiPc-CoPc composite films deposited by drop casting and under the influence of centrifugal force, Chinese Physics B, 26(6)(2017)060704 [Link] (IF = 1.223 /Q3). DOI: 10.1088/1674-1056/26/6/060704/meta

Ø  F.F. Muhammad, Mohd Y. Yahya, Khaulah Sulaiman, Improving the performance of solution-processed organic solar cells by incorporating small molecule acceptors into a ternary bulk heterojunction based on DH6T:Mq3:PCBM (M= Ga, Al), Materials Chemistry and Physics, 188(2017)86-94 [Link] (IF = 2.101 /Q2)DOI10.1016/j.matchemphys.2016.11.048

Ø  Lih Wei Lim, Fakhra Aziz, F.F. Muhammad, Azzuliani Supangat, Khaulah Sulaiman, Electrical properties of Al/PTB7-Th/n-Si metal-polymer-semiconductor Schottky barrier diode, Synthetic Metals, 221(2016)169-175 [Link(IF = 2.299 /Q2). DOI: 10.1016/j.synthmet.2016.08.018 

Ø  F.F. Muhammad, Mohd Yazid Yahya, Kamal Aziz Ketuly, Abdulkader Jaleel Muhammad, Khaulah Sulaiman, A study on the spectroscopic, energy band, and optoelectronic properties of α, ω-dihexylsexithiophene/tris (8-hydroxyquinolinate) gallium blends; DH6T/Gaq3 composite system, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 169(2016)144-151 [Link(IF = 2.653 /Q2). DOI: 10.1016/j.saa.2016.06.031

Ø  Rebar T. Abdulwahid, Omed Gh. Abdullah, Shujahadeen B. Aziz, Sarkawt A. Hussein, F.F. Muhammad, and Mohd Y. Yahya,  The study of structural and optical properties of PVA:PbO2 based solid polymer nanocomposites, Journal of Materials Science: Materials in Electronics, 27(11) (2016) 12112-12118 [Link] (IF = 1.798 /Q2). DOI: 10.1007/s10854-016-5363-y

Ø  Lih Wei Lim, Chin-Hoong Teh, Rusli Daik, Norazilawati Muhamad Sarih, Mohd Asri Mat Teridi, F.F. Muhammad, Khaulah Sulaiman, Synthesis and characterization of 2, 2’-bithiophene end-capped dihexyloxy phenylene pentamer and its application in solution-processed organic ultraviolet photodetector, RSC Advances, 6(2016)61848-61859 [Link(IF = 3.289 /Q2). DOI: 10.1039/C6RA15534K

Ø  F.F. Muhammad, Impedance spectroscopy analysis of DH6T:PCBM  bulk heterojunction incorporating Gaq3: experiment and model, Journal of Materials Science: Materials in Electronics27(1)(2016) 637-644 [Link(IF = 1.798 /Q2). DOI: 10.1007/s10854-015-3799-0

Ø  F.F. Muhammad, Shujahadeen B. Aziz, Sarkawt A. Hussein, Effect of the dopant salt on the optical parameters of PVA:NaNO3 solid polymer electrolyte, Journal of Materials Science: Materials in Electronics 26(1) (2015) 521-529 [Link] (IF = 1.569 /Q2). DOI: 10.1007/s10854-014-2430-0

Ø F.F. Muhammad, K. Sulaiman, Optical and morphological modifications in post-thermally treated tris (8-hydroxyquinolinate) gallium films grown on quartz substrates, Materials Chemistry and Physics 148 (2014) 473-477 [ Link] (IF = 2.259 /Q2). DOI: 10.1016/j.matchemphys.2014.08.017

Ø  F.F. Muhammad, K. Sulaiman, Nanostrucutre formation leading to modify the optical absorption of Gaq3 thin films, Journal of University of Zakho 1(2) (2013) 491-497 [download].

Ø  F.F. Muhammad, K. Sulaiman,Effects of thermal annealing on the optical, spectroscopic, and structural properties of tris (8-hydroxyquinolinate) gallium films grown on quartz substrates, Materials Chemistry and Physics 129 (2011) 1152-1158. [link(IF = 2.356 /Q1). DOI: 10.1016/j.matchemphys.2011.05.077

Ø  F.F. Muhammad, K. Sulaiman,Utilizing a simple and reliable method to investigate the optical functions of small molecular organic films- Alq3 and Gaq3 as examples, Measurement 44 (2011) 1468-1474. [link(IF = 0.836 /Q2). DOI: 10.1016/j.measurement.2011.05.017

Ø  F.F. Muhammad, K. Sulaiman,Photovoltaic performance of organic solar cells based on DH6T/PCBM thin film active layers, Thin Solid Films 519 (2011) 5230-5233. [link(IF = 1.935 /Q1). DOI: 10.1016/j.tsf.2011.01.165

Ø  F.F. Muhammad, K. Sulaiman, Tuning the optical band gap of DH6T by Alq3 dopant, Sains Malaysiana 40(1)(2011) 17-20. [download(IF = 0.152 /Q4)

Ø  F.F. Muhammad, A.I.A. Hapip, K. Sulaiman, Study of optoelectronic energy bands and molecular energy levels of tris(8-hydroxyquinolinate) gallium and aluminum organometallic materials from their spectroscopic and electrochemical analysis, Journal of Organometallic Chemistry 695(2010) 2526-2531. [link(IF = 2.347 /Q2). DOI: 10.1016/j.jorganchem.2010.07.026