Tim Hellmann

637 total citations
18 papers, 518 citations indexed

About

Tim Hellmann is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Tim Hellmann has authored 18 papers receiving a total of 518 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Electrical and Electronic Engineering, 13 papers in Materials Chemistry and 4 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Tim Hellmann's work include Perovskite Materials and Applications (11 papers), Chalcogenide Semiconductor Thin Films (9 papers) and Quantum Dots Synthesis And Properties (8 papers). Tim Hellmann is often cited by papers focused on Perovskite Materials and Applications (11 papers), Chalcogenide Semiconductor Thin Films (9 papers) and Quantum Dots Synthesis And Properties (8 papers). Tim Hellmann collaborates with scholars based in Germany, Switzerland and China. Tim Hellmann's co-authors include Thomas Mayer, Wolfram Jaegermann, Chittaranjan Das, Michael Wussler, Ulrich W. Paetzold, Jonas A. Schwenzer, Tobias Abzieher, Fabian Schackmar, Ihteaz M. Hossain and Iwan Zimmermann and has published in prestigious journals such as Angewandte Chemie International Edition, Advanced Functional Materials and Advanced Energy Materials.

In The Last Decade

Tim Hellmann

18 papers receiving 515 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tim Hellmann Germany 12 439 337 108 80 30 18 518
Dhirendra K. Chaudhary India 12 443 1.0× 304 0.9× 80 0.7× 124 1.6× 28 0.9× 38 524
Peigang Han China 14 380 0.9× 291 0.9× 127 1.2× 188 2.4× 37 1.2× 52 565
Maria Bidikoudi Greece 12 249 0.6× 208 0.6× 108 1.0× 110 1.4× 10 0.3× 20 384
Lahoucine Atourki Morocco 18 674 1.5× 659 2.0× 149 1.4× 92 1.1× 67 2.2× 52 867
Meenakshi Gusain India 13 332 0.8× 297 0.9× 61 0.6× 82 1.0× 16 0.5× 26 440
Chung-Hsin Lu Taiwan 12 202 0.5× 281 0.8× 26 0.2× 70 0.9× 19 0.6× 26 342
Santosh Bimli India 15 349 0.8× 267 0.8× 123 1.1× 154 1.9× 27 0.9× 30 522
Yangzi Zheng United States 11 266 0.6× 230 0.7× 29 0.3× 151 1.9× 34 1.1× 20 360
Sergio Battiato Italy 13 231 0.5× 138 0.4× 56 0.5× 178 2.2× 32 1.1× 21 342
N. Anitha India 11 246 0.6× 335 1.0× 41 0.4× 63 0.8× 23 0.8× 17 374

Countries citing papers authored by Tim Hellmann

Since Specialization
Citations

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

Fields of papers citing papers by Tim Hellmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tim Hellmann

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

All Works

18 of 18 papers shown
1.
Liang, Liang, Quanchen Feng, Xingli Wang, et al.. (2023). Electroreduction of CO2 on Au(310)@Cu High‐index Facets. Angewandte Chemie International Edition. 62(12). e202218039–e202218039. 26 indexed citations
2.
Gautier, Éric, L. Vila, Jean‐Philippe Attané, et al.. (2023). Electrical characterization of the azimuthal anisotropy of (NixCo1−x)B-based ferromagnetic nanotubes. Journal of Magnetism and Magnetic Materials. 575. 170715–170715. 4 indexed citations
3.
Maheu, Clément, et al.. (2023). Photoelectron Spectroscopy of Co-evaporated and Spin-Coated LiTFSI-Doped Spiro-OMeTAD Reveals the Interface Energetics Inside a MAPI-based Perovskite Solar Cell. The Journal of Physical Chemistry C. 127(43). 21351–21362. 4 indexed citations
4.
Gupta, Navneet Kumar, et al.. (2022). Modulating Catalytic Selectivity by Base Addition in Aqueous Reductive Amination of 1,6-Hexanediol Using Ru/C. ACS Sustainable Chemistry & Engineering. 10(44). 14560–14567. 11 indexed citations
5.
Abzieher, Tobias, Thomas Feeney, Fabian Schackmar, et al.. (2021). From Groundwork to Efficient Solar Cells: On the Importance of the Substrate Material in Co‐Evaporated Perovskite Solar Cells. Advanced Functional Materials. 31(42). 84 indexed citations
6.
Schwenzer, Jonas A., Tim Hellmann, Bahram Abdollahi Nejand, et al.. (2021). Thermal Stability and Cation Composition of Hybrid Organic–Inorganic Perovskites. ACS Applied Materials & Interfaces. 13(13). 15292–15304. 74 indexed citations
7.
Chen, Guoxing, Zhi‐Jun Zhao, Marc Widenmeyer, et al.. (2021). A comprehensive comparative study of CO2-resistance and oxygen permeability of 60 wt % Ce0.8M0.2O2– (M = La, Pr, Nd, Sm, Gd) - 40 wt % La0.5Sr0.5Fe0.8Cu0.2O3– dual-phase membranes. Journal of Membrane Science. 639. 119783–119783. 12 indexed citations
8.
9.
Das, Chittaranjan, Michael Wussler, Tim Hellmann, et al.. (2020). Surface, Interface, and Bulk Electronic and Chemical Properties of Complete Perovskite Solar Cells: Tapered Cross-Section Photoelectron Spectroscopy, a Novel Solution. ACS Applied Materials & Interfaces. 12(36). 40949–40957. 24 indexed citations
10.
Hellmann, Tim, Chittaranjan Das, Tobias Abzieher, et al.. (2020). The Electronic Structure of MAPI‐Based Perovskite Solar Cells: Detailed Band Diagram Determination by Photoemission Spectroscopy Comparing Classical and Inverted Device Stacks. Advanced Energy Materials. 10(42). 42 indexed citations
11.
Ochoa-Martínez, Efraín, T. Jaouen, Philipp Aebi, et al.. (2020). Carbon‐Assisted Stable Silver Nanostructures. Advanced Materials Interfaces. 7(23). 10 indexed citations
12.
Chakraborty, Biswarup, Rodrigo Beltrán‐Suito, Chittaranjan Das, et al.. (2020). A Low‐Temperature Molecular Precursor Approach to Copper‐Based Nano‐Sized Digenite Mineral for Efficient Electrocatalytic Oxygen Evolution Reaction. Chemistry - An Asian Journal. 15(6). 852–859. 36 indexed citations
13.
Das, Chittaranjan, Małgorzata Kot, Tim Hellmann, et al.. (2020). Atomic Layer-Deposited Aluminum Oxide Hinders Iodide Migration and Stabilizes Perovskite Solar Cells. Cell Reports Physical Science. 1(7). 100112–100112. 41 indexed citations
14.
Muench, Falk, et al.. (2020). Electroless Nanoplating of Iridium: Template‐Assisted Nanotube Deposition for the Continuous Flow Reduction of 4‐Nitrophenol. ChemElectroChem. 7(16). 3496–3507. 8 indexed citations
15.
16.
Hellmann, Tim, et al.. (2019). The difference in electronic structure of MAPI and MASI perovskites and its effect on the interface alignment to the HTMs spiro-MeOTAD and CuI. Journal of Materials Chemistry C. 7(18). 5324–5332. 24 indexed citations
17.
Hellmann, Tim, et al.. (2019). Preparation of Methylammonium Tin Iodide (CH3NH3SnI3) Perovskite Thin Films via Flash Evaporation. physica status solidi (a). 216(18). 11 indexed citations
18.
Das, Chittaranjan, Michael Wussler, Tim Hellmann, Thomas Mayer, & Wolfram Jaegermann. (2018). In situ XPS study of the surface chemistry of MAPI solar cells under operating conditions in vacuum. Physical Chemistry Chemical Physics. 20(25). 17180–17187. 67 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Dhirendra K. Chaudhary Breakdown of academic impact, for papers by Peigang Han Breakdown of academic impact, for papers by Maria Bidikoudi Breakdown of academic impact, for papers by Lahoucine Atourki Breakdown of academic impact, for papers by Meenakshi Gusain Breakdown of academic impact, for papers by Chung-Hsin Lu Breakdown of academic impact, for papers by Santosh Bimli Breakdown of academic impact, for papers by Yangzi Zheng Breakdown of academic impact, for papers by Sergio Battiato Breakdown of academic impact, for papers by N. Anitha
Rankless by CCL
2026