A. Ullmann

608 total citations
9 papers, 521 citations indexed

About

A. Ullmann is a scholar working on Polymers and Plastics, Electrical and Electronic Engineering and Bioengineering. According to data from OpenAlex, A. Ullmann has authored 9 papers receiving a total of 521 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Polymers and Plastics, 8 papers in Electrical and Electronic Engineering and 3 papers in Bioengineering. Recurrent topics in A. Ullmann's work include Organic Electronics and Photovoltaics (8 papers), Conducting polymers and applications (7 papers) and Analytical Chemistry and Sensors (3 papers). A. Ullmann is often cited by papers focused on Organic Electronics and Photovoltaics (8 papers), Conducting polymers and applications (7 papers) and Analytical Chemistry and Sensors (3 papers). A. Ullmann collaborates with scholars based in Germany, United Kingdom and United States. A. Ullmann's co-authors include W. Fix, W. Clemens, J. Ficker, A. Knobloch, H. Rost, Elisabeth Eckert, Marcus L. Böhm, Melanie Giles, Iain McCulloch and David J. Brennan and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Journal of materials research/Pratt's guide to venture capital sources.

In The Last Decade

A. Ullmann

8 papers receiving 489 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
A. Ullmann Germany	7	479	187	146	66	38	9	521
W. Fix Germany	9	556 1.2×	219 1.2×	162 1.1×	72 1.1×	43 1.1×	14	600
J. Ficker Germany	8	550 1.1×	234 1.3×	165 1.1×	79 1.2×	40 1.1×	9	601
Amare Benor Ethiopia	11	479 1.0×	164 0.9×	158 1.1×	59 0.9×	32 0.8×	26	525
Reinhold Rödel Germany	12	579 1.2×	171 0.9×	219 1.5×	79 1.2×	50 1.3×	18	625
Tyler Kelley United States	4	672 1.4×	222 1.2×	189 1.3×	59 0.9×	36 0.9×	10	705
P. Too United Kingdom	7	433 0.9×	222 1.2×	117 0.8×	76 1.2×	36 0.9×	21	472
Seungkeun Choi United States	12	525 1.1×	305 1.6×	227 1.6×	55 0.8×	39 1.0×	21	606
Jimmy Granström United States	10	489 1.0×	257 1.4×	143 1.0×	82 1.2×	27 0.7×	12	545
Wiljan T. T. Smaal Netherlands	12	484 1.0×	180 1.0×	256 1.8×	48 0.7×	29 0.8×	13	548
Peter Vicca Belgium	11	673 1.4×	173 0.9×	255 1.7×	120 1.8×	32 0.8×	25	736

Countries citing papers authored by A. Ullmann

Since Specialization

Citations

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

Fields of papers citing papers by A. Ullmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. Ullmann. 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 A. Ullmann. The network helps show where A. Ullmann may publish in the future.

Co-authorship network of co-authors of A. Ullmann

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

All Works

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9 of 9 papers shown

1.

Ullmann, A., et al.. (2016). Ärztliche Großpraxis. DIAL (Catholic University of Leuven). 1 indexed citations

2.

Böhm, Marcus L., et al.. (2006). Printable electronics for polymer RFID applications. 1034–1041. 32 indexed citations

3.

Clemens, W., W. Fix, J. Ficker, A. Knobloch, & A. Ullmann. (2004). From polymer transistors toward printed electronics. Journal of materials research/Pratt's guide to venture capital sources. 19(7). 1963–1973. 178 indexed citations

4.

Eckert, Elisabeth, et al.. (2004). A Polymer Transistor Circuit Using PDHTT. IEEE Electron Device Letters. 25(6). 399–401. 30 indexed citations

5.

Ficker, J., A. Ullmann, W. Fix, H. Rost, & W. Clemens. (2003). Stability of polythiophene-based transistors and circuits. Journal of Applied Physics. 94(4). 2638–2641. 66 indexed citations

6.

Fix, W., A. Ullmann, J. Ficker, & W. Clemens. (2002). Fast polymer integrated circuits. Applied Physics Letters. 81(9). 1735–1737. 181 indexed citations

7.

Fix, W., A. Ullmann, J. Ficker, et al.. (2002). Fast Polymer Integrated Circuits Based on a Polyfluorene Derivative. 665. 527–530. 4 indexed citations

8.

Ullmann, A., J. Ficker, W. Fix, et al.. (2001). High Performance Organic Field-Effect Transistors and Integrated Inverters. MRS Proceedings. 665. 20 indexed citations

9.

Ullmann, A., et al.. (2001). <title>Dynamic and lifetime measurements of polymer OFETs and integrated plastic circuits</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4466. 95–102. 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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