G. Appel

517 citations

17 papers · 421 indexed · h-index 12

Impact in

Structural Biology top 10%
Bioengineering top 10%
- Analytical Chemistry and Sensors

Papers in ⓘ

Electrical and Electronic Engineering 9
- Semiconductor materials and devices 3
- Gas Sensing Nanomaterials and Sensors 2
Polymers and Plastics 7
- Conducting polymers and applications 6

Co-authors: Dieter Schmeißer (10 shared papers)Harald Ade (7 shared papers)G. Lucovsky (3 shared papers)G. B. Rayner (3 shared papers)Jerry L. Whitten (3 shared papers)Adam P. Hitchcock (2 shared papers)Karsten Henkel (3 shared papers)A. Oprea (3 shared papers)
Journals: Synthetic Metals (3 papers)Materials Science and Engineering C (2 papers)Chemical Physics Letters (2 papers)Macromolecules (1 paper)Applied Physics Letters (1 paper)
Partner nations: Germany United States Romania

In The Last Decade

G. Appel

17 papers receiving 412 citations

Peers

Countries citing papers authored by G. Appel

Since Specialization

Citations

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

Fields of papers citing papers by G. Appel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside G. Appel, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with G. Appel Line = papers co-authored together G. Appel links everyone, so they are left out of the graph.

All Works

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17 of 17 papers shown

#	Work
1	Electronic structure of noncrystalline transition metal silicate and aluminate alloys Applied Physics Letters ·G. Lucovsky, G. B. Rayner, Dongkyun Kang, G. Appel, R. S. Johnson, Y. Zhang, D. E. Sayers, Harald Ade, Jerry L. Whitten	2001	61
2	X-ray spectromicroscopy of immiscible polymer blends: polystyrene–poly(methyl methacrylate) Journal of Electron Spectroscopy and Related Phenomena ·Cynthia Morin, Hiromi Ikeura‐Sekiguchi, T. Tyliszczak, Rena M. Cornelius, John L. Brash, Adam P. Hitchcock, A. Schöll, F. Nolting, G. Appel, D. A. Winesett, K. Kaznacheyev, Harald Ade	2001	58
3	Identification and Quantitation of Urea Precipitates in Flexible Polyurethane Foam Formulations by X-ray Spectromicroscopy Macromolecules ·E. G. Rightor, Stephen G. Urquhart, Adam P. Hitchcock, Harald Ade, A. P. Smith, G. E. Mitchell, Ralph D. Priester, Ashish Aneja, G. Appel, Garth L. Wilkes, W. E. Lidy	2002	50
4	Electronic structure of high-k transition metal oxides and their silicate and aluminate alloys Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena ·G. Lucovsky, Y. Zhang, G. B. Rayner, G. Appel, Harald Ade, Jerry L. Whitten	2002	39
5	Selective polypyrrole electrodes for quartz microbalances: NO2 and gas flux sensitivities Sensors and Actuators B Chemical ·Karsten Henkel, A. Oprea, Ioanna Paloumpa, G. Appel, Dieter Schmeißer, P Kamieth	2001	31
6	The polaron and bipolaron contributions to the electronic structure of polypyrrole films Chemical Physics Letters ·G. Appel, O. Böhme, R.P. Mikalo, Dieter Schmeißer	1999	29
7	The formation of oligomers in the electrolyte upon polymerization of pyrrole Synthetic Metals ·G. Appel, Dieter Schmeißer, J. Bauer, Monika Bauer, Hans‐Joachim Egelhaaf, D. Oelkrug	1999	26
8	Band bending in doped conducting polypyrrole: interaction with silver Synthetic Metals ·R.P. Mikalo, G. Appel, P. Hoffmann, Dieter Schmeißer	2001	23
9	Solid state effects in the NEXAFS spectra of alkane-based van der Waals crystals: Breakdown of molecular model Chemical Physics Letters ·Ying Zou, Tohru Araki, G. Appel, A. L. D. Kilcoyne, Harald Ade	2006	22
10	Electronic structure of transition metal high-k dielectrics: interfacial band offset energies for microelectronic devices Applied Surface Science ·G. Lucovsky, G. B. Rayner, Yu Zhang, C. C. Fulton, R. J. Nemanich, G. Appel, Harald Ade, Jerry L. Whitten	2003	21
11	Polymeric electrodes Solid-State Electronics ·G. Appel, R.P. Mikalo, Karsten Henkel, A. Oprea, Alexandros Yfantis, Ioanna Paloumpa, Dieter Schmeißer	2000	12
12	Synthesis of dihydroxy silicon phthalocyanine tetrasulfonic acid and poly-μ-oxo silicon phthalocyanine tetrasulfonic acid Journal of Porphyrins and Phthalocyanines ·Ayşegül Gürek, G. Appel, R.P. Mikalo, Dieter Schmeißer	2001	11
13	Langmuir-Blodgett multilayers from polymers for low loss planar waveguides Thin Solid Films ·Werner Hickel, G. Appel, Donald Lupo, (unknown), U. Scheunemann	1992	11
14	Conductivity of silver exposed polypyrrole films Synthetic Metals ·R.P. Mikalo, G. Appel, Dieter Schmeißer	2001	10
15	Doping and defect inhomogeneities of polypyrrole tosylate films as revealed by μ-NEXAFS Materials Science and Engineering C ·R.P. Mikalo, P. Hoffmann, Th. Heller, David Batchelor, G. Appel, Dieter Schmeißer	1999	8
16	Increased sensor sensitivities obtained by polymer-coated quartz microbalances Materials Science and Engineering C ·A. Oprea, Karsten Henkel, Ralf Oehmgen, G. Appel, Dieter Schmeißer, Henk H. Lauer, P Hausmann	1999	6
17	Orientation studies of Si-phthalocyanine sulfonic acids cast on SiO x substrates Applied Physics A ·G. Appel, Harald Ade, A. GUEREK, Shane Stadler, R.P. Mikalo, Dieter Schmeißer	2003	3

About G. Appel

G. Appel is a scholar working on Electrical and Electronic Engineering, Polymers and Plastics, Bioengineering, Atomic and Molecular Physics, and Optics and Materials Chemistry, having authored 17 papers that have together received 421 indexed citations. Recurring topics across this work include Analytical Chemistry and Sensors (7 papers), Conducting polymers and applications (6 papers), Semiconductor materials and interfaces (4 papers), Copper Interconnects and Reliability (3 papers), Semiconductor materials and devices (3 papers), Advanced Chemical Sensor Technologies (2 papers), Gas Sensing Nanomaterials and Sensors (2 papers) and Electron and X-Ray Spectroscopy Techniques (2 papers). The work is most often cited by research in Structural Biology (17 citations), Bioengineering (57 citations), Polymers and Plastics (130 citations), Surfaces, Coatings and Films (53 citations) and Electrical and Electronic Engineering (243 citations). G. Appel has collaborated with scholars based in Germany, United States and Romania. Frequent co-authors include Dieter Schmeißer, Harald Ade, G. Lucovsky, G. B. Rayner, Jerry L. Whitten, Adam P. Hitchcock, Karsten Henkel, A. Oprea, P. Hoffmann and Dongkyun Kang. Their work appears in journals such as Synthetic Metals, Materials Science and Engineering C, Chemical Physics Letters, Macromolecules and Applied Physics Letters.

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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