Roar R. Søndergaard

9.1k total citations · 4 hit papers
63 papers, 7.7k citations indexed

About

Roar R. Søndergaard is a scholar working on Electrical and Electronic Engineering, Polymers and Plastics and Biomedical Engineering. According to data from OpenAlex, Roar R. Søndergaard has authored 63 papers receiving a total of 7.7k indexed citations (citations by other indexed papers that have themselves been cited), including 56 papers in Electrical and Electronic Engineering, 28 papers in Polymers and Plastics and 19 papers in Biomedical Engineering. Recurrent topics in Roar R. Søndergaard's work include Organic Electronics and Photovoltaics (50 papers), Conducting polymers and applications (28 papers) and Thin-Film Transistor Technologies (17 papers). Roar R. Søndergaard is often cited by papers focused on Organic Electronics and Photovoltaics (50 papers), Conducting polymers and applications (28 papers) and Thin-Film Transistor Technologies (17 papers). Roar R. Søndergaard collaborates with scholars based in Denmark, Germany and Spain. Roar R. Søndergaard's co-authors include Frederik C. Krebs, Markus Hösel, Mikkel Jørgensen, Dechan Angmo, Martin Helgesen, Thue T. Larsen‐Olsen, Nieves Espinosa, Jon E. Carlé, Eva Bundgaard and Suren A. Gevorgyan and has published in prestigious journals such as Advanced Materials, ACS Nano and Energy & Environmental Science.

In The Last Decade

Roar R. Søndergaard

63 papers receiving 7.6k citations

Hit Papers

Roll-to-roll fabrication of polymer solar cells 2009 2026 2014 2020 2012 2012 2013 2009 400 800 1.2k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Roll-to-roll fabrication of polymer solar cells
    2012 1.3k citations Roar R. Søndergaard, Markus Hösel et al. profile →
  2. Roll‐to‐Roll fabrication of large area functional organic materials
    2012 917 citations Roar R. Søndergaard, Markus Hösel et al. profile →
  3. 25th Anniversary Article: Rise to Power – OPV‐Based Solar Parks
    2013 728 citations Frederik C. Krebs, Nieves Espinosa et al. Advanced Materials profile →
  4. Advanced materials and processes for polymer solar cell devices
    2009 690 citations Martin Helgesen, Roar R. Søndergaard et al. Journal of Materials Chemistry profile →

Peers

Roar R. Søndergaard
Markus Hösel Denmark
Zheng Tang China
Shirong Lu China
Ronn Andriessen Netherlands
Jae‐Wook Kang South Korea
Choongik Kim South Korea
Nan Zheng China
Jaeyoung Jang South Korea
Chao Li China
Yunqiang Zhang China
Markus Hösel Denmark
Roar R. Søndergaard
Citations per year, relative to Roar R. Søndergaard Roar R. Søndergaard (= 1×) peers Markus Hösel

Countries citing papers authored by Roar R. Søndergaard

Since Specialization
Citations

This map shows the geographic impact of Roar R. Søndergaard'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 Roar R. Søndergaard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roar R. Søndergaard more than expected).

Fields of papers citing papers by Roar R. Søndergaard

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roar R. Søndergaard. 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 Roar R. Søndergaard. The network helps show where Roar R. Søndergaard may publish in the future.

Co-authorship network of co-authors of Roar R. Søndergaard

This figure shows the co-authorship network connecting the top 25 collaborators of Roar R. Søndergaard. A scholar is included among the top collaborators of Roar R. Søndergaard 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 Roar R. Søndergaard. Roar R. Søndergaard is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Søndergaard, Roar R., et al.. (2020). Flexible ITO-Free Roll-Processed Large-Area Nonfullerene Organic Solar Cells Based on P3HT:O-IDTBR. Physical Review Applied. 14(3). 22 indexed citations
2.
Gevorgyan, Suren A., Ilona Heckler, Eva Bundgaard, et al.. (2017). Improving, characterizing and predicting the lifetime of organic photovoltaics. Journal of Physics D Applied Physics. 50(10). 103001–103001. 46 indexed citations
3.
Espinosa, Nieves, Roar R. Søndergaard, Mikkel Jørgensen, & Frederik C. Krebs. (2016). Flow Synthesis of Silver Nanowires for Semitransparent Solar Cell Electrodes: A Life Cycle Perspective. ChemSusChem. 9(8). 893–899. 19 indexed citations
4.
García‐Valverde, Rafael, Michael Corazza, Nieves Espinosa, et al.. (2016). Portable and wireless IV-curve tracer for >5kV organic photovoltaic modules. Solar Energy Materials and Solar Cells. 151. 60–65. 21 indexed citations
5.
Søndergaard, Roar R., et al.. (2016). Incineration of organic solar cells: efficient end of life management by quantitative silver recovery. Energy & Environmental Science. 9(3). 857–861. 20 indexed citations
6.
Gevorgyan, Suren A., Morten V. Madsen, Bérenger Roth, et al.. (2015). Lifetime of Organic Photovoltaics: Status and Predictions. Advanced Energy Materials. 6(2). 123 indexed citations
7.
García‐Valverde, Rafael, José Abel Flores Villarejo, Markus Hösel, et al.. (2015). Scalable single point power extraction for compact mobile and stand-alone solar harvesting power sources based on fully printed organic photovoltaic modules and efficient high voltage DC/DC conversion. Solar Energy Materials and Solar Cells. 144. 48–54. 23 indexed citations
8.
Roth, Bérenger, Gisele Alves dos Reis Benatto, Michael Corazza, et al.. (2015). Improving the Operational Stability of PBDTTTz‐4 Polymer Solar Cells Modules by Electrode Modification. Advanced Engineering Materials. 18(4). 511–517. 19 indexed citations
9.
Krebs, Frederik C., Markus Hösel, Michael Corazza, et al.. (2013). Freely available OPV—The fast way to progress. Energy Technology. 1(7). 378–381. 112 indexed citations
10.
Liu, Yao, Thue T. Larsen‐Olsen, Xingang Zhao, et al.. (2013). All polymer photovoltaics: From small inverted devices to large roll-to-roll coated and printed solar cells. Solar Energy Materials and Solar Cells. 112. 157–162. 81 indexed citations
11.
Hösel, Markus, Roar R. Søndergaard, Dechan Angmo, & Frederik C. Krebs. (2013). Comparison of Fast Roll‐to‐Roll Flexographic, Inkjet, Flatbed, and Rotary Screen Printing of Metal Back Electrodes for Polymer Solar Cells. Advanced Engineering Materials. 15(10). 995–1001. 80 indexed citations
12.
Angmo, Dechan, Suren A. Gevorgyan, Thue T. Larsen‐Olsen, et al.. (2013). Scalability and stability of very thin, roll-to-roll processed, large area, indium-tin-oxide free polymer solar cell modules. Organic Electronics. 14(3). 984–994. 121 indexed citations
13.
14.
Krebs, Frederik C., Nieves Espinosa, Markus Hösel, Roar R. Søndergaard, & Mikkel Jørgensen. (2013). 25th Anniversary Article: Rise to Power – OPV‐Based Solar Parks. Advanced Materials. 26(1). 29–39. 728 indexed citations breakdown →
15.
Andersen, Thomas R., Henrik F. Dam, Birgitta Andreasen, et al.. (2013). A rational method for developing and testing stable flexible indium- and vacuum-free multilayer tandem polymer solar cells comprising up to twelve roll processed layers. Solar Energy Materials and Solar Cells. 120. 735–743. 64 indexed citations
16.
17.
Angmo, Dechan, Thue T. Larsen‐Olsen, Mikkel Jørgensen, Roar R. Søndergaard, & Frederik C. Krebs. (2012). Roll‐to‐Roll Inkjet Printing and Photonic Sintering of Electrodes for ITO Free Polymer Solar Cell Modules and Facile Product Integration. Advanced Energy Materials. 3(2). 172–175. 219 indexed citations
18.
Søndergaard, Roar R., Matthieu Manceau, Mikkel Jørgensen, & Frederik C. Krebs. (2012). New Low‐Bandgap Materials with Good Stabilities and Efficiencies Comparable to P3HT in R2R‐Coated Solar Cells. Advanced Energy Materials. 2(4). 415–418. 51 indexed citations
19.
Helgesen, Martin, Roar R. Søndergaard, & Frederik C. Krebs. (2009). Advanced materials and processes for polymer solar cell devices. Journal of Materials Chemistry. 20(1). 36–60. 690 indexed citations breakdown →
20.
Houen, Gunnar, Roar R. Søndergaard, T Friis, et al.. (2005). Substrate specificity of the bovine serum amine oxidase and in situ characterisation of aminoaldehydes by NMR spectroscopy. Bioorganic & Medicinal Chemistry. 13(11). 3783–3796. 9 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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