Vijaykumar Upadhyaya

614 total citations
56 papers, 518 citations indexed

About

Vijaykumar Upadhyaya is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Vijaykumar Upadhyaya has authored 56 papers receiving a total of 518 indexed citations (citations by other indexed papers that have themselves been cited), including 55 papers in Electrical and Electronic Engineering, 22 papers in Materials Chemistry and 18 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Vijaykumar Upadhyaya's work include Silicon and Solar Cell Technologies (54 papers), Thin-Film Transistor Technologies (31 papers) and Silicon Nanostructures and Photoluminescence (20 papers). Vijaykumar Upadhyaya is often cited by papers focused on Silicon and Solar Cell Technologies (54 papers), Thin-Film Transistor Technologies (31 papers) and Silicon Nanostructures and Photoluminescence (20 papers). Vijaykumar Upadhyaya collaborates with scholars based in United States, Germany and South Korea. Vijaykumar Upadhyaya's co-authors include A. Rohatgi, Ajay Upadhyaya, Yuguo Tao, Young‐Woo Ok, Chia‐Wei Chen, Brian Rounsaville, Adam Payne, Elizabeth Chang, Arnab Das and Abasifreke Ebong and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Solar Energy Materials and Solar Cells.

In The Last Decade

Vijaykumar Upadhyaya

50 papers receiving 494 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Vijaykumar Upadhyaya United States 13 497 204 140 64 50 56 518
Y. Veschetti France 12 402 0.8× 197 1.0× 130 0.9× 53 0.8× 22 0.4× 49 430
M.F. Stuckings Australia 6 537 1.1× 207 1.0× 121 0.9× 71 1.1× 43 0.9× 8 554
Verena Mertens Germany 11 394 0.8× 147 0.7× 128 0.9× 51 0.8× 28 0.6× 30 420
O. Schultz Germany 6 314 0.6× 87 0.4× 114 0.8× 42 0.7× 49 1.0× 13 343
Udo Römer Australia 13 902 1.8× 523 2.6× 188 1.3× 39 0.6× 67 1.3× 32 932
N. Enjalbert France 12 477 1.0× 222 1.1× 114 0.8× 71 1.1× 40 0.8× 52 500
Ulrich Jäger Germany 14 468 0.9× 132 0.6× 128 0.9× 61 1.0× 41 0.8× 39 478
Amir Dastgheib-Shirazi Germany 14 482 1.0× 210 1.0× 115 0.8× 58 0.9× 50 1.0× 35 491
Nico Wöhrle Germany 14 475 1.0× 144 0.7× 65 0.5× 135 2.1× 28 0.6× 37 493
J. Petermann Germany 7 344 0.7× 111 0.5× 143 1.0× 25 0.4× 104 2.1× 15 384

Countries citing papers authored by Vijaykumar Upadhyaya

Since Specialization
Citations

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

Fields of papers citing papers by Vijaykumar Upadhyaya

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Vijaykumar Upadhyaya

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

All Works

20 of 20 papers shown
1.
Choi, Wookjin, Young‐Woo Ok, Vijaykumar Upadhyaya, et al.. (2025). Development of 22.5 % p-type tunnel oxide passivated contact solar cells through efficiency enhancement by replacing local Al-BSF in PERC cells with (p+) poly-Si/SiO2 carrier selective contact. Solar Energy Materials and Solar Cells. 283. 113436–113436. 3 indexed citations
2.
3.
Choi, Wookjin, Young‐Woo Ok, Vijaykumar Upadhyaya, et al.. (2024). Development of APCVD BSG and POCl3 Codiffusion Process for Double-Side TOPCon Solar Cell Precursor Fabrication. IEEE Journal of Photovoltaics. 14(5). 727–736. 3 indexed citations
4.
5.
Upadhyaya, Ajay, A. Rohatgi, Young‐Woo Ok, et al.. (2023). ~20% Efficient Si PERC Solar Cell with Emitter Surface Passivated by H2S Reaction. 2. 1–3. 1 indexed citations
6.
Choi, Wookjin, Young‐Woo Ok, Pradeep Padhamnath, et al.. (2023). Investigation and Quantitative Understanding of Front Field Passivation in Rear Junction Selective Double-Side TOPCon Solar Cells. 2 indexed citations
7.
Rohatgi, A., Young‐Woo Ok, Vijaykumar Upadhyaya, et al.. (2023). Hydrogen Sulfide Passivation for p-Type Passivated Emitter and Rear Contact Solar Cells. IEEE Journal of Photovoltaics. 14(2). 211–218. 1 indexed citations
8.
Ok, Young‐Woo, et al.. (2022). Novel Process for Screen-Printed Selective Area Front Polysilicon Contacts for TOPCon Cells Using Laser Oxidation. IEEE Journal of Photovoltaics. 12(6). 1282–1288. 12 indexed citations
9.
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Ok, Young‐Woo, et al.. (2020). Fully screen-printed bifacial large area 22.6% N-type Si solar cell with lightly doped ion-implanted boron emitter and tunnel oxide passivated rear contact. Solar Energy Materials and Solar Cells. 214. 110585–110585. 32 indexed citations
11.
Ok, Young‐Woo, et al.. (2017). Screen Printed, Large Area Bifacial N-PERT cells with Tunnel Oxide Passivated Back Contact. 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC). 1807–1810. 4 indexed citations
12.
Tao, Yuguo, et al.. (2017). Large-area n-type TOPCon Cells with Screen-printed Contact on Selective Boron Emitter Formed by Wet Chemical Etch-back. 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC). 1824–1827. 2 indexed citations
13.
Tao, Yuguo, Vijaykumar Upadhyaya, Chia‐Wei Chen, et al.. (2016). Large area tunnel oxide passivated rear contact n‐type Si solar cells with 21.2% efficiency. Progress in Photovoltaics Research and Applications. 24(6). 830–835. 84 indexed citations
14.
15.
Upadhyaya, Ajay, Elizabeth Chang, Vijaykumar Upadhyaya, et al.. (2015). Ion implanted screen printed N-type solar cell with tunnel oxide passivated back contact. 1–3. 7 indexed citations
16.
Upadhyaya, Ajay, et al.. (2014). High efficiency large area n-type front junction silicon solar cells with boron emitter formed by screen printing technology. Progress in Photovoltaics Research and Applications. 23(1). 119–123. 18 indexed citations
17.
Upadhyaya, Ajay, et al.. (2012). Optimization of ultraviolet laser doping for crystalline silicon solar cells with a novel segmented selective emitter design. Progress in Photovoltaics Research and Applications. 21(2). 141–147. 2 indexed citations
18.
Upadhyaya, Ajay, et al.. (2012). High-Efficiency n-Type Si Solar Cells With Novel Inkjet-Printed Boron Emitters. IEEE Electron Device Letters. 33(6). 854–856. 12 indexed citations
19.
20.
Ebong, Abasifreke, et al.. (2005). High efficiency screen-printed planar solar cells on single crystalline silicon materials. 1173–1176. 10 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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Breakdown of academic impact, for papers by Y. Veschetti Breakdown of academic impact, for papers by M.F. Stuckings Breakdown of academic impact, for papers by Verena Mertens Breakdown of academic impact, for papers by O. Schultz Breakdown of academic impact, for papers by Udo Römer Breakdown of academic impact, for papers by N. Enjalbert Breakdown of academic impact, for papers by Ulrich Jäger Breakdown of academic impact, for papers by Amir Dastgheib-Shirazi Breakdown of academic impact, for papers by Nico Wöhrle Breakdown of academic impact, for papers by J. Petermann
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2026