Ralph Krupke

10.2k total citations · 2 hit papers
120 papers, 8.3k citations indexed

About

Ralph Krupke is a scholar working on Materials Chemistry, Atomic and Molecular Physics, and Optics and Biomedical Engineering. According to data from OpenAlex, Ralph Krupke has authored 120 papers receiving a total of 8.3k indexed citations (citations by other indexed papers that have themselves been cited), including 103 papers in Materials Chemistry, 53 papers in Atomic and Molecular Physics, and Optics and 40 papers in Biomedical Engineering. Recurrent topics in Ralph Krupke's work include Carbon Nanotubes in Composites (75 papers), Graphene research and applications (47 papers) and Mechanical and Optical Resonators (33 papers). Ralph Krupke is often cited by papers focused on Carbon Nanotubes in Composites (75 papers), Graphene research and applications (47 papers) and Mechanical and Optical Resonators (33 papers). Ralph Krupke collaborates with scholars based in Germany, United Kingdom and Australia. Ralph Krupke's co-authors include Frank Hennrich, Manfred M. Kappes, H. v. Löhneysen, Cinzia Casiraghi, Alexandre Felten, L. Britnell, Axel Eckmann, Artem Mishchenko, Kostya S. Novoselov and Benjamin S. Flavel and has published in prestigious journals such as Science, Physical Review Letters and Advanced Materials.

In The Last Decade

Ralph Krupke

119 papers receiving 8.2k 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.

Probing the Nature of Defects in Graphene by Raman Spectroscopy

2012 1.9k citations Axel Eckmann, Alexandre Felten et al. profile →
Separation of Metallic from Semiconducting Single-Walled Carbon Nanotubes

2003 1.3k citations Ralph Krupke, Frank Hennrich et al. profile →

Peers

Countries citing papers authored by Ralph Krupke

Since Specialization

Citations

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

Fields of papers citing papers by Ralph Krupke

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ralph Krupke

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	On the mechanism of piezoresistance in nanocrystalline graphite 2024 ·Beilstein Journal of Nanotechnology ·(unknown), Simone Dehm, Ralph Krupke	0
2	Sensitive Detection of a Gaseous Analyte with Low‐Power Metal–Organic Framework Functionalized Carbon Nanotube Transistors 2023 ·Advanced Electronic Materials ·(unknown), Simone Dehm, (unknown), Abhinav Chandresh, Lars Heinke, Benjamin S. Flavel, Ralph Krupke	4
3	Graphitizability of Polymer Thin Films: An In Situ TEM Study of Thickness Effects on Nanocrystalline Graphene/Glassy Carbon Formation 2023 ·Macromolecular Materials and Engineering ·C.N. Shyam Kumar, (unknown), Simone Dehm, Venkata Sai Kiran Chakravadhanula, Di Wang, Wolfgang Wenzel, Ralph Krupke, Christian Kübel	3
4	An electroluminescent and tunable cavity-enhanced carbon-nanotube-emitter in the telecom band 2023 ·Nature Communications ·(unknown), Min-Ken Li, Helge Gehring, Fabian Beutel, (unknown), Frank Hennrich, Wei Li, Yuan Chen, Felix Pyatkov, Ralph Krupke, Wolfram H. P. Pernice	10
5	Physics and applications of nanotubes 2022 ·Journal of Applied Physics ·Shigeo Maruyama, Michael S. Arnold, Ralph Krupke, Lian‐Mao Peng	11
6	Contact spacing controls the on-current for all-carbon field effect transistors 2021 ·Communications Physics ·(unknown), (unknown), Felix Pyatkov, Frank Hennrich, Yuan Chen, Wolfgang Wenzel, Ralph Krupke, Artem Fediai	4
7	Low-Temperature Electroluminescence Excitation Mapping of Excitons and Trions in Short-Channel Monochiral Carbon Nanotube Devices 2020 ·ACS Nano ·(unknown), (unknown), (unknown), Imtiaz Alamgir, (unknown), Simone Dehm, Han Li, Uli Lemmer, Benjamin S. Flavel, Manfred M. Kappes, Frank Hennrich, Wei Li, Yuan Chen, Felix Pyatkov, Ralph Krupke	18
8	Anomalous Cyclotron Motion in Graphene Superlattice Cavities 2020 ·Physical Review Letters ·Rainer Kraft, Ming‐Hao Liu, (unknown), (unknown), Ralph Krupke, Klaus Richter, R. Danneau	11
9	Carbon nanotubes as emerging quantum-light sources 2018 ·Nature Materials ·Xiaowei He, Han Htoon, Stephen K. Doorn, Wolfram H. P. Pernice, Felix Pyatkov, Ralph Krupke, Adrien Jeantet, Yannick Chassagneux, Christophe Voisin	220
10	Fitting Single-Walled Carbon Nanotube Optical Spectra 2017 ·ACS Omega ·Moritz Pfohl, Daniel D. Tune, Arko Graf, Jana Zaumseil, Ralph Krupke, Benjamin S. Flavel	70
11	Photocurrent spectroscopy of dye-sensitized carbon nanotubes 2017 ·Nanoscale ·(unknown), Simone Dehm, Frank Hennrich, Yuriy Zakharko, Arko Graf, Moritz Pfohl, Ihteaz M. Hossain, Manfred M. Kappes, Jana Zaumseil, Ralph Krupke, Benjamin S. Flavel	9
12	Exploring the upper limit of single-walled carbon nanotube purity by multiple-cycle aqueous two-phase separation 2017 ·Nanoscale ·Wei Li, Benjamin S. Flavel, (unknown), Ralph Krupke, Yuan Chen	32
13	Inner- and outer-wall sorting of double-walled carbon nanotubes 2017 ·Nature Nanotechnology ·Han Li, Georgy Gordeev, Sören Waßerroth, Venkata Sai Kiran Chakravadhanula, C.N. Shyam Kumar, Frank Hennrich, Ado Jório, Stephanie Reich, Ralph Krupke, Benjamin S. Flavel	35
14	Resonant anti-Stokes Raman scattering in single-walled carbon nanotubes 2017 ·Physical review. B. ·Georgy Gordeev, Ado Jório, Patryk Kusch, (unknown), Benjamin S. Flavel, Ralph Krupke, Eduardo B. Barros, Stephanie Reich	15
15	Cavity-enhanced light emission from electrically driven carbon nanotubes 2016 ·Nature Photonics ·Felix Pyatkov, (unknown), Svetlana Khasminskaya, Benjamin S. Flavel, Frank Hennrich, Manfred M. Kappes, Ralph Krupke, Wolfram H. P. Pernice	111
16	Enhancing Raman signals with an interferometrically controlled AFM tip 2013 ·Nanotechnology ·(unknown), Ralph Krupke	3
17	Single‐ and Double‐Sided Chemical Functionalization of Bilayer Graphene 2012 ·Small ·Alexandre Felten, Benjamin S. Flavel, L. Britnell, Axel Eckmann, Pierre Louette, Jean‐Jacques Pireaux, Michael Hirtz, Ralph Krupke, Cinzia Casiraghi	46
18	The polarized carbon nanotube thin film LED 2010 ·Optics Express ·Megumi Kinoshita, M. Steiner, Michael Engel, Joshua P. Small, Alexander A. Green, Mark C. Hersam, Ralph Krupke, E. E. Méndez, Phaedon Avouris	34
19	Ultraviolet photodetector arrays assembled by dielectrophoresis of ZnO nanoparticles 2010 ·Nanotechnology ·(unknown), Norman Mechau, Horst Hahn, Ralph Krupke	29
20	Imaging electronic structure of carbon nanotubes by voltage-contrast scanning electron microscopy 2008 ·Nano Research ·Aravind Vijayaraghavan, Sabine Blatt, Christoph Marquardt, Simone Dehm, (unknown), Frank Hennrich, Ralph Krupke	28

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.

Explore authors with similar magnitude of impact