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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 53 13027 11718 66 66 336 10627

Ahmad Irfan publications per year

The chart shows the history of publications by Ahmad Irfan between 2008 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ahmad Irfan published across 18 years, from 2008 to 2025, averaging 31 papers a year. Output peaked at 91 publications in 2024. 142 of the 558 publications appeared in the last two years.

No. of publications
20 40 60 80
Bar chart. Horizontal axis: year, 2008 to 2025. Vertical axis: number of publications, 0 to 91. Peak 91 publications in 2024. 2008: 1 publication 2009: 5 publications 2010: 4 publications 2011: 3 publications 2012: 11 publications 2013: 12 publications 2014: 25 publications 2015: 23 publications 2016: 13 publications 2017: 20 publications 2018: 29 publications 2019: 26 publications 2020: 36 publications 2021: 80 publications 2022: 58 publications 2023: 70 publications 2024: 91 publications 2025: 51 publications
2008 2025

558 publications in total across all disciplines

View publications per year as a table
Ahmad Irfan: publications per year, 2008 to 2025
Year Publications
2008 1
2009 5
2010 4
2011 3
2012 11
2013 12
2014 25
2015 23
2016 13
2017 20
2018 29
2019 26
2020 36
2021 80
2022 58
2023 70
2024 91
2025 51
Total 558
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Ahmad Irfan publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Ahmad Irfan sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 321–340 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 336 publications — 70th percentile

70% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643 336
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Ahmad Irfan D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Ahmad Irfan sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 52–53 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 53 D-Index — 28th percentile

28% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872 53
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Ahmad Irfan is affiliated with King Khalid University in Saudi Arabia and has an extensive publication record primarily in the fields of Chemistry, Materials Science, and Engineering. Their research contributions include 280 publications in Chemistry, 246 in Materials Science, and 177 in Engineering. Subfields of particular focus include Organic Chemistry, Materials Chemistry, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, and Biomedical Engineering.

The scientist's work spans several major topical areas, including:

  • Nonlinear Optical Materials Research
  • Synthesis and Biological Activity
  • Free Radicals and Antioxidants
  • Perovskite Materials and Applications
  • Nanomaterials for Catalytic Reactions
  • Chalcogenide Semiconductor Thin Films
  • Metal Complexes Synthesis and Properties

Frequent publication venues for Ahmad Irfan include:

  • Journal of Molecular Liquids (41 publications)
  • Journal of Molecular Structure (18 publications)
  • RSC Advances (14 publications)
  • Journal of the Indian Chemical Society (12 publications)
  • Computational and Theoretical Chemistry (7 publications)

Some of the most recent papers authored or co-authored by Ahmad Irfan are:

  • "Machine learning and molecular dynamics simulation-assisted evolutionary design and discovery pipeline to screen efficient small molecule acceptors for PTB7-Th-based organic solar cells with over 15% efficiency" (2022), published in Journal of Materials Chemistry A
  • "Machine Learning for Organic Photovoltaic Polymers: A Minireview" (2022), published in Chinese Journal of Polymer Science
  • "Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects" (2020), published in Journal of Hazardous Materials
  • "Developing Efficient Small Molecule Acceptors with sp2-Hybridized Nitrogen at Different Positions by Density Functional Theory Calculations, Molecular Dynamics Simulations and Machine Learning" (2021), published in Chemistry - A European Journal
  • "Electrochemical Sensors for Heavy Metal Ion Detection in Aqueous Medium: A Systematic Review" (2024), published in ACS Omega

Ahmad Irfan has collaborated frequently with several researchers, demonstrating interdisciplinary cooperation. Frequent co-authors include:

  • S. Muthu (70 joint publications)
  • Zahoor H. Farooqi (47 joint publications)
  • Robina Begum (44 joint publications)
  • Aijaz Rasool Chaudhry (42 joint publications)
  • Md. Ferdous Rahman (40 joint publications)

Best Publications

  • Removal of Congo red dye from aqueous medium by its catalytic reduction using sodium borohydride in the presence of various inorganic nano-catalysts: A review

    Khalida Naseem;Zahoor H. Farooqi;Robina Begum;Ahmad Irfan;Ahmad Irfan

  • Quantum chemical design of nonlinear optical materials by sp2-hybridized carbon nanomaterials: issues and opportunities

    Shabbir Muhammad;Shabbir Muhammad;Hong-Liang Xu;Rong-Lin Zhong;Zhong-Min Su

  • Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects

    Zahoor H. Farooqi;Muhammad Waseem Akram;Robina Begum;Weitai Wu

  • Applications of UV/Vis Spectroscopy in Characterization and Catalytic Activity of Noble Metal Nanoparticles Fabricated in Responsive Polymer Microgels: A Review.

    Robina Begum;Zahoor H Farooqi;Khalida Naseem;Faisal Ali

  • First principles study for the key electronic, optical and nonlinear optical properties of novel donor-acceptor chalcones.

    Shabbir Muhammad;Shabbir Muhammad;Shabbir Muhammad;Abdullah G. Al-Sehemi;Zhongmin Su;Hongliang Xu

  • Developing Efficient Small Molecule Acceptors with sp2 -Hybridized Nitrogen at Different Positions by Density Functional Theory Calculations, Molecular Dynamics Simulations and Machine Learning.

    Asif Mahmood;Ahmad Irfan;Jin-Liang Wang

  • Adsorptive removal of heavy metal ions using polystyrene-poly(N-isopropylmethacrylamide-acrylic acid) core/shell gel particles: Adsorption isotherms and kinetic study

    Khalida Naseem;Robina Begum;Weitai Wu;Muhammad Usman

  • Catalytic reduction of toxic dyes in the presence of silver nanoparticles impregnated core-shell composite microgels

    Khalida Naseem;Robina Begum;Robina Begum;Weitai Wu;Ahmad Irfan;Ahmad Irfan

  • An investigation on the key features of a D–π–A type novel chalcone derivative for opto-electronic applications

    Mohd. Shkir;Mohd. Shkir;Shabbir Muhammad;Shabbir Muhammad;Salem AlFaify;Salem AlFaify;Ahmad Irfan;Ahmad Irfan

  • Silver nanoparticles stabilized in polymer hydrogels for catalytic degradation of azo dyes.

    Sadia Iqbal;Chandani Zahoor;Sara Musaddiq;Murid Hussain

  • Role of a singlet diradical character in carbon nanomaterials: a novel hot spot for efficient nonlinear optical materials

    Shabbir Muhammad;Shabbir Muhammad;Masayoshi Nakano;Abdullah G. Al-Sehemi;Abdullah G. Al-Sehemi;Yasutaka Kitagawa

  • Tuning the push–pull configuration for efficient second-order nonlinear optical properties in some chalcone derivatives

    Shabbir Muhammad;Shabbir Muhammad;Abdullah G. Al-Sehemi;Ahmad Irfan;Aijaz R. Chaudhry

  • Fe3O4-PDA-Lipase as Surface Functionalized Nano Biocatalyst for the Production of Biodiesel Using Waste Cooking Oil as Feedstock: Characterization and Process Optimization

    Tooba Touqeer;Muhammad Waseem Mumtaz;Hamid Mukhtar;Ahmad Irfan

  • Computational Designing of Triphenylamine Dyes with Broad and Red‐shifted Absorption Spectra for Dye‐sensitized Solar Cells using Multi‐Thiophene Rings in π‐Spacer

    Asif Mahmood;Mudassir HussainTahir;Ahmad Irfan;Ahmad Irfan;Bilal Khalid

  • Facile synthesis of silver nanoparticles in a crosslinked polymeric system by in situ reduction method for catalytic reduction of 4-nitroaniline.

    Zahoor H Farooqi;Rida Khalid;Robina Begum;Umar Farooq

  • Heterocyclic azo dyes for dye sensitized solar cells: A quantum chemical study

    Asif Mahmood;Mudassir Hussain Tahir;Ahmad Irfan;Ahmad Irfan;Abdullah G. Al-Sehemi;Abdullah G. Al-Sehemi

  • Novel W-Shaped Oxygen Heterocycle-Fused Fluorene-Based Non-Fullerene Acceptors: First Theoretical Framework for Designing Environment-Friendly Organic Solar Cells

    Muhammad Usman Khan;Muhammad Khalid;Riaz Hussain;Ali Umar

  • Quantum chemical study of the donor-bridge-acceptor triphenylamine based sensitizers.

    Ahmad Irfan;Ruifa Jin;Abdullah G. Al-Sehemi;Abdullah M. Asiri

  • Computational analysis to understand the performance difference between two small-molecule acceptors differing in their terminal electron-deficient group

    Asif Mahmood;Asif Mahmood;Ahmad Irfan;Ahmad Irfan

Frequent Co-Authors

Abdullah G. Al-Sehemi
Abdullah G. Al-Sehemi King Khalid University
Shabbir Muhammad
Shabbir Muhammad King Khalid University
Zahoor H. Farooqi
Zahoor H. Farooqi University of the Punjab
Mohd. Shkir
Mohd. Shkir King Khalid University
Abdullah M. Asiri
Abdullah M. Asiri King Abdulaziz University
S. AlFaify
S. AlFaify King Khalid University
Renjith Thomas
Renjith Thomas St. Berchmans College
Jingping Zhang
Jingping Zhang Northeast Normal University
Muhammad Khalid
Muhammad Khalid Constructor University
Rashid Ahmed
Rashid Ahmed University of Technology Malaysia

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