World's Best Scientists 2026 revealed!

D-Index & Metrics

Materials Science

D-Index
58
Citations
10538
World Ranking
7782
National Ranking
1930

S. P. Alpay publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where S. P. Alpay sits on this spectrum.

50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50 publications 1,163+

This scientist: 259 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

S. P. Alpay D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where S. P. Alpay sits on this spectrum.

40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40 D-Index 165+

This scientist: 58 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

Overview

S. P. Alpay is affiliated with the University of Connecticut in the United States and has a research focus primarily in the fields of Materials Science and Engineering. Their work spans a broad range of specialized subfields, reflecting interdisciplinary engagement in materials chemistry, electrical and electronic engineering, and mechanical engineering.

The scientist's main areas of study include:

  • Materials Chemistry
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment

Among the main topics they have contributed to are:

  • Ferroelectric and Piezoelectric Materials
  • Multiferroics and related materials
  • 2D Materials and Applications
  • Perovskite Materials and Applications
  • Topological Materials and Phenomena
  • Microwave Dielectric Ceramics Synthesis
  • Aluminum Alloy Microstructure Properties

S. P. Alpay has authored publications in several prominent scientific journals, with frequent contributions to:

  • Journal of Applied Physics
  • Scripta Materialia
  • Physical Review B
  • Journal of Materials Engineering and Performance
  • SSRN Electronic Journal

Their recent papers include:

  • "Moisture-Induced Structural Degradation in Methylammonium Lead Iodide Perovskite Thin Films," 2020, ACS Applied Energy Materials
  • "Novel Al-X alloys with improved hardness," 2020, Materials & Design
  • "Atomistic Insights into the Hydrogen Oxidation Reaction of Palladium-Ceria Bifunctional Catalysts for Anion-Exchange Membrane Fuel Cells," 2021, ACS Catalysis
  • "Improving Alkaline Hydrogen Oxidation Activity of Palladium through Interactions with Transition-Metal Oxides," 2022, ACS Catalysis
  • "Deciphering electrochemical interactions in metal-polymer catalysts for CO2 reduction," 2023, Energy & Environmental Science

The scientist regularly collaborates with several researchers, their frequent coauthors including:

  • Sanjeev K. Nayak
  • Sanjubala Sahoo
  • Rainer J. Hebert
  • Baris Yavas
  • Serge Nakhmanson

Best Publications

  • Dielectric properties in heteroepitaxial Ba0.6Sr0.4TiO3 thin films: Effect of internal stresses and dislocation-type defects

    C. L. Canedy;Hao Li;S. P. Alpay;L. Salamanca-Riba

  • Mesoporous Iron Sulfide for Highly Efficient Electrocatalytic Hydrogen Evolution

    Ran Miao;Biswanath Dutta;Sanjubala Sahoo;Junkai He

  • Phase diagrams and dielectric response of epitaxial barium strontium titanate films: A theoretical analysis

    Z.-G. Ban;S. P. Alpay

  • Can interface dislocations degrade ferroelectric properties

    S. P. Alpay;I. B. Misirlioglu;V. Nagarajan;R. Ramesh

  • Influence of mechanical boundary conditions on the electrocaloric properties of ferroelectric thin films

    G. Akcay;S. P. Alpay;G. A. Rossetti;J. F. Scott

  • Magnitude of the intrinsic electrocaloric effect in ferroelectric perovskite thin films at high electric fields

    G. Akcay;S. P. Alpay;J. V. Mantese;G. A. Rossetti

  • Thermodynamics of polydomain heterostructures. III. Domain stability map

    S. Pamir Alpay;Alexander L. Roytburd

  • Thickness dependence of structural and electrical properties in epitaxial lead zirconate titanate films

    V. Nagarajan;I. G. Jenkins;S. P. Alpay;H. Li

  • Challenges and opportunities for multi-functional oxide thin films for voltage tunable radio frequency/microwave components

    Guru Subramanyam;Melanie W. Cole;Nian X. Sun;Thottam S. Kalkur

  • Imaging three-dimensional polarization in epitaxial polydomain ferroelectric thin films

    C. S. Ganpule;V. Nagarajan;B. K. Hill;A. L. Roytburd

  • Dielectric anomaly due to electrostatic coupling in ferroelectric-paraelectric bilayers and multilayers

    A. L. Roytburd;S. Zhong;S. P. Alpay

  • Next-generation electrocaloric and pyroelectric materials for solid-state electrothermal energy interconversion

    S. Pamir Alpay;Joseph Mantese;Susan Trolier-McKinstry;Qiming Zhang

  • Fundamentals of graded ferroic materials and devices

    Z.-G. Ban;S. P. Alpay;J. V. Mantese

  • Optimization of the tunability of barium strontium titanate films via epitaxial stresses

    Z.-G. Ban;S. P. Alpay

  • Misfit dislocations in nanoscale ferroelectric heterostructures

    V. Nagarajan;C. L. Jia;H. Kohlstedt;R. Waser

  • Pseudo-elastic deformation behavior in a Ti/Mo-based alloy

    T. Zhou;M. Aindow;S.P. Alpay;M.J. Blackburn

  • Dependence of dielectric properties on internal stresses in epitaxial barium strontium titanate thin films

    Hao Li;A. L. Roytburd;S. P. Alpay;T. D. Tran

  • Measurement of internal stresses via the polarization in epitaxial ferroelectric films

    A. L. Roytburd;S. P. Alpay;V. Nagarajan;C. S. Ganpule

  • The fabrication and material properties of compositionally multilayered Ba1−xSrxTiO3 thin films for realization of temperature insensitive tunable phase shifter devices

    M. W. Cole;E. Ngo;S. Hirsch;J. D. Demaree

  • Reduced Graphene Oxide Supported Nickel–Manganese–Cobalt Spinel Ternary Oxide Nanocomposites and Their Chemically Converted Sulfide Nanocomposites as Efficient Electrocatalysts for Alkaline Water Splitting

    Ran Miao;Junkai He;Sanjubala Sahoo;Zhu Luo

  • Role of substrate on the dielectric and piezoelectric behavior of epitaxial lead magnesium niobate-lead titanate relaxor thin films

    V. Nagarajan;S. P. Alpay;C. S. Ganpule;B. K. Nagaraj

Frequent Co-Authors

Valanoor Nagarajan
Valanoor Nagarajan University of New South Wales
Mark Aindow
Mark Aindow University of Connecticut
Ellen D. Williams
Ellen D. Williams University of Maryland, College Park
Ramamoorthy Ramesh
Ramamoorthy Ramesh Rice University
Leonid A. Bendersky
Leonid A. Bendersky National Institute of Standards and Technology
Lourdes Salamanca-Riba
Lourdes Salamanca-Riba University of Maryland, College Park
Rainer Waser
Rainer Waser RWTH Aachen University
Ichiro Takeuchi
Ichiro Takeuchi University of Maryland, College Park
Susan Trolier-McKinstry
Susan Trolier-McKinstry Pennsylvania State University
James F. Scott
James F. Scott University of St Andrews

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