Till Spehr

1.2k total citations · 1 hit paper
5 papers, 1.1k citations indexed

About

Till Spehr is a scholar working on Electrical and Electronic Engineering, Physical and Theoretical Chemistry and Materials Chemistry. According to data from OpenAlex, Till Spehr has authored 5 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Electrical and Electronic Engineering, 2 papers in Physical and Theoretical Chemistry and 1 paper in Materials Chemistry. Recurrent topics in Till Spehr's work include Organic Light-Emitting Diodes Research (4 papers), Organic Electronics and Photovoltaics (2 papers) and Photochemistry and Electron Transfer Studies (2 papers). Till Spehr is often cited by papers focused on Organic Light-Emitting Diodes Research (4 papers), Organic Electronics and Photovoltaics (2 papers) and Photochemistry and Electron Transfer Studies (2 papers). Till Spehr collaborates with scholars based in Germany. Till Spehr's co-authors include Thomas Fuhrmann‐Lieker, Josef Salbeck, Tobat P. I. Saragi, Robert Pudzich, Thomas Riedl, P. Hinze, Wolfgang Kowalsky, Torsten Rabe, Thomas Weimann and H.‐H. Johannes and has published in prestigious journals such as Chemical Reviews, Applied Physics Letters and Organic Electronics.

In The Last Decade

Till Spehr

5 papers receiving 1.1k citations

Hit Papers

align trajectories

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.

Spiro Compounds for Organic Optoelectronics

2007 949 citations Tobat P. I. Saragi, Till Spehr et al. Chemical Reviews profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Till Spehr Germany	3	666	508	338	280	91	5	1.1k
Chun‐Wah Ma Hong Kong	8	472 0.7×	405 0.8×	270 0.8×	151 0.5×	74 0.8×	8	754
Illhun Cho South Korea	16	730 1.1×	642 1.3×	189 0.6×	294 1.1×	92 1.0×	17	1.1k
C. H. Chuen Taiwan	8	693 1.0×	468 0.9×	186 0.6×	295 1.1×	50 0.5×	8	935
Li‐Hsin Chan Taiwan	16	1.1k 1.6×	773 1.5×	296 0.9×	581 2.1×	91 1.0×	35	1.4k
Vyacheslav V. Diev United States	17	563 0.8×	533 1.0×	350 1.0×	293 1.0×	57 0.6×	22	1.1k
Manabu Uchida Japan	13	768 1.2×	655 1.3×	393 1.2×	343 1.2×	120 1.3×	26	1.2k
Hongze Gao China	15	577 0.9×	598 1.2×	247 0.7×	243 0.9×	136 1.5×	27	949
Ruei‐Tang Chen Taiwan	8	702 1.1×	446 0.9×	176 0.5×	272 1.0×	45 0.5×	10	942
Simone Di Motta Italy	14	565 0.8×	383 0.8×	400 1.2×	291 1.0×	37 0.4×	15	915
Michael R. Craig Netherlands	10	493 0.7×	342 0.7×	315 0.9×	426 1.5×	94 1.0×	11	890

Countries citing papers authored by Till Spehr

Since Specialization

Citations

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

Fields of papers citing papers by Till Spehr

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Till Spehr

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

All Works

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5 of 5 papers shown

1.

Saragi, Tobat P. I., et al.. (2007). Spiro Compounds for Organic Optoelectronics. ChemInform. 38(31). 2 indexed citations

2.

Saragi, Tobat P. I., et al.. (2007). Spiro Compounds for Organic Optoelectronics. Chemical Reviews. 107(4). 1011–1065. 949 indexed citations breakdown →

3.

Spehr, Till, Thomas Fuhrmann‐Lieker, Josef Salbeck, et al.. (2005). Organic solid-state ultraviolet-laser based on spiro-terphenyl. Applied Physics Letters. 87(16). 52 indexed citations

4.

Spehr, Till, Robert Pudzich, Thomas Fuhrmann‐Lieker, & Josef Salbeck. (2003). Highly efficient light emitters based on the spiro concept. Organic Electronics. 4(2-3). 61–69. 69 indexed citations

5.

Tarraf, A., J. Daleiden, S. Irmer, et al.. (2003). Novel low-cost and simple fabrication technology for tunable dielectric active and passive optical air-gap devices. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4945. 9–9. 1 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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