Sami Valkama

1.2k total citations
19 papers, 976 citations indexed

About

Sami Valkama is a scholar working on Materials Chemistry, Polymers and Plastics and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Sami Valkama has authored 19 papers receiving a total of 976 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Materials Chemistry, 6 papers in Polymers and Plastics and 5 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Sami Valkama's work include Mesoporous Materials and Catalysis (4 papers), Photonic Crystals and Applications (3 papers) and Covalent Organic Framework Applications (3 papers). Sami Valkama is often cited by papers focused on Mesoporous Materials and Catalysis (4 papers), Photonic Crystals and Applications (3 papers) and Covalent Organic Framework Applications (3 papers). Sami Valkama collaborates with scholars based in Finland, Netherlands and India. Sami Valkama's co-authors include Olli Ikkala, Janne Ruokolainen, Harri Kosonen, Gerrit ten Brinke, Antti Nykänen, Mika Torkkeli, Ritva Serimaa, Ari Laiho, Robin H. A. Ras and Tomi Haatainen and has published in prestigious journals such as Advanced Materials, Nature Materials and Chemistry of Materials.

In The Last Decade

Sami Valkama

19 papers receiving 959 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Sami Valkama Finland 11 671 459 228 182 153 19 976
Benjamin J. Rancatore United States 8 685 1.0× 401 0.9× 179 0.8× 145 0.8× 155 1.0× 9 924
Masa-aki Kakimoto Japan 16 650 1.0× 255 0.6× 360 1.6× 153 0.8× 357 2.3× 32 1.1k
Hiroyuki Aota Japan 19 395 0.6× 497 1.1× 352 1.5× 70 0.4× 112 0.7× 95 1.1k
M. Christopher Orilall United States 10 1.2k 1.7× 264 0.6× 209 0.9× 262 1.4× 477 3.1× 10 1.6k
Julia J. Chiu United States 6 985 1.5× 719 1.6× 175 0.8× 127 0.7× 85 0.6× 8 1.1k
H.‐P. Hentze Germany 9 424 0.6× 328 0.7× 128 0.6× 90 0.5× 66 0.4× 10 771
Eckhard Wenz Germany 7 568 0.8× 671 1.5× 179 0.8× 153 0.8× 75 0.5× 7 1.0k
Karim Aissou France 20 687 1.0× 537 1.2× 155 0.7× 119 0.7× 207 1.4× 59 1.1k
Misaho Akada Japan 16 595 0.9× 244 0.5× 146 0.6× 150 0.8× 408 2.7× 26 1.1k
Muruganathan Ramanathan United States 12 398 0.6× 289 0.6× 102 0.4× 66 0.4× 170 1.1× 18 754

Countries citing papers authored by Sami Valkama

Since Specialization
Citations

This map shows the geographic impact of Sami Valkama's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Sami Valkama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sami Valkama more than expected).

Fields of papers citing papers by Sami Valkama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sami Valkama. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Sami Valkama. The network helps show where Sami Valkama may publish in the future.

Co-authorship network of co-authors of Sami Valkama

This figure shows the co-authorship network connecting the top 25 collaborators of Sami Valkama. A scholar is included among the top collaborators of Sami Valkama based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Sami Valkama. Sami Valkama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

19 of 19 papers shown
1.
Valkama, Sami, et al.. (2025). Save Your Tears for the Toxicity Assays─Carbon Nanotubes Still Fooling Scientists. ACS Omega. 10(6). 5554–5562. 2 indexed citations
2.
Ramani, R., Sami Valkama, Simo Kilpeläinen, et al.. (2009). Order‐disorder transitions in self‐assembled polymers: A positron annihilation study. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 6(11). 2414–2416. 2 indexed citations
3.
Soininen, Antti, Sami Valkama, Antti Nykänen, et al.. (2007). Functional Carbon Nanoflakes with High Aspect Ratio by Pyrolysis of Cured Templates of Block Copolymer and Phenolic Resin. Chemistry of Materials. 19(13). 3093–3095. 5 indexed citations
4.
Valkama, Sami, Antti Nykänen, Harri Kosonen, et al.. (2006). Hierarchical Porosity in Self‐Assembled Polymers: Post‐Modification of Block Copolymer–Phenolic Resin Complexes by Pyrolysis Allows the Control of Micro‐ and Mesoporosity. Advanced Functional Materials. 17(2). 183–190. 93 indexed citations
5.
Laiho, Ari, Robin H. A. Ras, Sami Valkama, et al.. (2006). Control of Self-Assembly by Charge-Transfer Complexation between C60Fullerene and Electron Donating Units of Block Copolymers. Macromolecules. 39(22). 7648–7653. 89 indexed citations
6.
Valkama, Sami, Teemu Ruotsalainen, Antti Nykänen, et al.. (2006). Self-Assembled Structures in Diblock Copolymers with Hydrogen-Bonded Amphiphilic Plasticizing Compounds. Macromolecules. 39(26). 9327–9336. 148 indexed citations
7.
Priimägi, Arri, Stefano Cattaneo, Robin H. A. Ras, et al.. (2006). Polymer-dye complexes: supramolecular route toward functional optical materials. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6192. 61922U–61922U. 1 indexed citations
8.
Priimägi, Arri, Stefano Cattaneo, Robin H. A. Ras, et al.. (2006). Supramolecular guest-host systems: combining high dye doping level with low aggregation tendency. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6331. 63310L–63310L. 4 indexed citations
9.
Kosonen, Harri, et al.. (2005). Functional Porous Structures Based on the Pyrolysis of Cured Templates of Block Copolymer and Phenolic Resin. Advanced Materials. 18(2). 201–205. 121 indexed citations
10.
Priimägi, Arri, Stefano Cattaneo, Robin H. A. Ras, et al.. (2005). Polymer−Dye Complexes:  A Facile Method for High Doping Level and Aggregation Control of Dye Molecules. Chemistry of Materials. 17(23). 5798–5802. 95 indexed citations
11.
Valkama, Sami, Harri Kosonen, Janne Ruokolainen, et al.. (2004). Self-assembled polymeric solid films with temperature-induced large and reversible photonic-bandgap switching. Nature Materials. 3(12). 872–876. 200 indexed citations
12.
Hartikainen, Juha, Olli Lehtonen, T. Harmia, et al.. (2004). Structure and Morphology of Polyamide 66 and Oligomeric Phenolic Resin Blends:  Molecular Modeling and Experimental Investigations. Chemistry of Materials. 16(16). 3032–3039. 31 indexed citations
13.
Kosonen, Harri, Sami Valkama, Janne Ruokolainen, et al.. (2003). One-dimensional optical reflectors based on self-organization of polymeric comb-shaped supramolecules. The European Physical Journal E. 10(1). 69–75. 34 indexed citations
14.
Valkama, Sami, Olli Lehtonen, Kristian Lappalainen, et al.. (2003). Multicomb Polymeric Supramolecules and Their Self‐Organization: Combination of Coordination and Ionic Interactions. Macromolecular Rapid Communications. 24(9). 556–560. 49 indexed citations
15.
Kosonen, Harri, Sami Valkama, Janne Ruokolainen, et al.. (2003). Processible conducting nanoscale cylinders due to self-organized polyaniline supramolecules. Synthetic Metals. 137(1-3). 881–882. 7 indexed citations
16.
Kosonen, Harri, Sami Valkama, Janne Ruokolainen, Gerrit ten Brinke, & Olli Ikkala. (2003). Polymeric One-Dimensional Reflectors Based on Self-Organization of Comb-Shaped Supramolecules. MRS Proceedings. 775. 1 indexed citations
17.
Valkama, Sami, Teemu Ruotsalainen, Harri Kosonen, et al.. (2003). Amphiphiles Coordinated to Block Copolymers as a Template for Mesoporous Materials. Macromolecules. 36(11). 3986–3991. 42 indexed citations
18.
Kosonen, Harri, Sami Valkama, Juha Hartikainen, et al.. (2002). Mesomorphic Structure of Poly(styrene)-block-poly(4-vinylpyridine) with Oligo(ethylene oxide)sulfonic Acid Side Chains as a Model for Molecularly Reinforced Polymer Electrolyte. Macromolecules. 35(27). 10149–10154. 45 indexed citations
19.
Valkama, Sami, Juha Hartikainen, Mika Torkkeli, et al.. (2002). Self-organized nanostructures of poly(4‐vinylpyridine), polyaniline and polyamides due to metal complexation. Macromolecular Symposia. 186(1). 87–92. 7 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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