Calvyn T. Howells

2.9k total citations · 3 hit papers
23 papers, 2.2k citations indexed

About

Calvyn T. Howells is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Polymers and Plastics. According to data from OpenAlex, Calvyn T. Howells has authored 23 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Electrical and Electronic Engineering, 10 papers in Materials Chemistry and 8 papers in Polymers and Plastics. Recurrent topics in Calvyn T. Howells's work include Organic Electronics and Photovoltaics (10 papers), Perovskite Materials and Applications (8 papers) and Conducting polymers and applications (8 papers). Calvyn T. Howells is often cited by papers focused on Organic Electronics and Photovoltaics (10 papers), Perovskite Materials and Applications (8 papers) and Conducting polymers and applications (8 papers). Calvyn T. Howells collaborates with scholars based in United Kingdom, Saudi Arabia and United Arab Emirates. Calvyn T. Howells's co-authors include Iain McCulloch, Stefaan De Wolf, Thomas D. Anthopoulos, George T. Harrison, Ján Koščo, James R. Durrant, Rachid Sougrat, Anand S. Subbiah, Yuliar Firdaus and Furkan H. Isikgor and has published in prestigious journals such as Advanced Materials, Angewandte Chemie International Edition and Nature Communications.

In The Last Decade

Calvyn T. Howells

17 papers receiving 2.2k citations

Hit Papers

Self-Assembled Monolayer Enables Hole Transport Layer-Fre... 2020 2026 2022 2024 2020 2020 2022 100 200 300 400 500
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.

  1. Self-Assembled Monolayer Enables Hole Transport Layer-Free Organic Solar Cells with 18% Efficiency and Improved Operational Stability
    2020 579 citations Yuliar Firdaus, Furkan H. Isikgor et al. ACS Energy Letters profile →
  2. Enhanced photocatalytic hydrogen evolution from organic semiconductor heterojunction nanoparticles
    2020 543 citations Ján Koščo, Matthew Bidwell et al. Nature Materials profile →
  3. Generation of long-lived charges in organic semiconductor heterojunction nanoparticles for efficient photocatalytic hydrogen evolution
    2022 308 citations Ján Koščo, Soranyel González‐Carrero et al. Nature Energy profile →

Peers

Calvyn T. Howells
Takayuki Kuwabara Japan
Huawei Zhou China
Youhei Numata Japan
Subas Muduli Singapore
Kohshin Takahashi Japan
Soranyel González‐Carrero Spain
Michiel L. Petrus United Kingdom
Matthew Bidwell United Kingdom
Denghui Xu China
Tainan Duan China
Takayuki Kuwabara Japan
Calvyn T. Howells
Citations per year, relative to Calvyn T. Howells Calvyn T. Howells (= 1×) peers Takayuki Kuwabara

Countries citing papers authored by Calvyn T. Howells

Since Specialization
Citations

This map shows the geographic impact of Calvyn T. Howells'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 Calvyn T. Howells with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Calvyn T. Howells more than expected).

Fields of papers citing papers by Calvyn T. Howells

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Calvyn T. Howells. 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 Calvyn T. Howells. The network helps show where Calvyn T. Howells may publish in the future.

Co-authorship network of co-authors of Calvyn T. Howells

This figure shows the co-authorship network connecting the top 25 collaborators of Calvyn T. Howells. A scholar is included among the top collaborators of Calvyn T. Howells 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 Calvyn T. Howells. Calvyn T. Howells 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
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Batool, Sana, Iftikhar Ahmed, Calvyn T. Howells, et al.. (2025). Betaine-loaded Foeniculum vulgare@Fe-MOF: A novel approach to combat bleomycin-induced hepatotoxicity in rats. Journal of environmental chemical engineering. 14(1). 120642–120642.
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Fan, Xiaochao, Ruijing Shi, Iftikhar Ahmed, et al.. (2025). Engineering interfacial thermal energy management via grooved B4C-polyurethane architectures for high-efficiency solar-thermal desalination. Separation and Purification Technology. 382. 135933–135933.
5.
Batool, Sana, Iftikhar Ahmed, Calvyn T. Howells, et al.. (2025). Engineering of Foeniculum vulgare with material science: La2O3-CeO2-CuO nanocomposites to revolutionize photocatalysis and antimicrobial challenges. Journal of environmental chemical engineering. 13(5). 118470–118470. 3 indexed citations
6.
Ahmed, Iftikhar, et al.. (2025). A first principles based analysis of K2XMoF6 (X = Au, Cs) lead-free double perovskites: exploring their physical properties. Multiscale and Multidisciplinary Modeling Experiments and Design. 8(10).
7.
Ganguly, Arnab, et al.. (2023). Controlling Vertical Asymmetry of Nanocrystals Through Anisotropic Etching‐Assisted Nanosphere Lithography. SHILAP Revista de lepidopterología. 5(3). 3 indexed citations
8.
Koščo, Ján, Soranyel González‐Carrero, Calvyn T. Howells, et al.. (2022). Generation of long-lived charges in organic semiconductor heterojunction nanoparticles for efficient photocatalytic hydrogen evolution. Nature Energy. 7(4). 340–351. 308 indexed citations breakdown →
9.
Koščo, Ján, Soranyel González‐Carrero, Calvyn T. Howells, et al.. (2021). Oligoethylene Glycol Side Chains Increase Charge Generation in Organic Semiconductor Nanoparticles for Enhanced Photocatalytic Hydrogen Evolution. Advanced Materials. 34(22). e2105007–e2105007. 71 indexed citations
10.
Santos, John Marques dos, Marios Neophytou, Alan A. Wiles, et al.. (2021). Influence of alkyne spacers on the performance of thiophene-based donors in bulk-heterojunction organic photovoltaic cells. Dyes and Pigments. 188. 109152–109152. 10 indexed citations
11.
Subbiah, Anand S., Furkan H. Isikgor, Calvyn T. Howells, et al.. (2020). High-Performance Perovskite Single-Junction and Textured Perovskite/Silicon Tandem Solar Cells via Slot-Die-Coating. ACS Energy Letters. 5(9). 3034–3040. 169 indexed citations
12.
Koščo, Ján, Matthew Bidwell, Hyojung Cha, et al.. (2020). Enhanced photocatalytic hydrogen evolution from organic semiconductor heterojunction nanoparticles. Nature Materials. 19(5). 559–565. 543 indexed citations breakdown →
13.
Howells, Calvyn T., Haeri Kim, Tetsuya Aoyama, et al.. (2018). Influence of perfluorinated ionomer in PEDOT:PSS on the rectification and degradation of organic photovoltaic cells. Journal of Materials Chemistry A. 6(33). 16012–16028. 25 indexed citations
14.
Howells, Calvyn T., et al.. (2018). Integrating sphere based reflectance measurements for small-area semiconductor samples. Review of Scientific Instruments. 89(5). 53101–53101. 1 indexed citations
15.
Cortizo‐Lacalle, Diego, Calvyn T. Howells, Upendra Kumar Pandey, et al.. (2014). Solution processable diketopyrrolopyrrole (DPP) cored small molecules with BODIPY end groups as novel donors for organic solar cells. Beilstein Journal of Organic Chemistry. 10. 2683–2695. 21 indexed citations
16.
Hedley, Gordon J., Alexander J. Ward, Alexander Alekseev, et al.. (2013). Determining the optimum morphology in high-performance polymer-fullerene organic photovoltaic cells. Nature Communications. 4(1). 2867–2867. 299 indexed citations
17.
Arumugam, Sasikumar, Iain A. Wright, Anto R. Inigo, et al.. (2013). Charge transport in a two-dimensional molecular organic semiconductor. Journal of Materials Chemistry C. 2(1). 34–39. 13 indexed citations
18.
Wright, Iain A., Alexander L. Kanibolotsky, Joseph Cameron, et al.. (2012). Oligothiophene Cruciform with a Germanium Spiro Center: A Promising Material for Organic Photovoltaics. Angewandte Chemie International Edition. 51(19). 4562–4567. 26 indexed citations
19.
Wright, Iain A., Alexander L. Kanibolotsky, Joseph Cameron, et al.. (2012). Oligothiophene Cruciform with a Germanium Spiro Center: A Promising Material for Organic Photovoltaics. Angewandte Chemie. 124(19). 4640–4645. 4 indexed citations
20.
Cortizo‐Lacalle, Diego, Calvyn T. Howells, Salvatore Gambino, et al.. (2012). BODIPY-based conjugated polymers for broadband light sensing and harvesting applications. Journal of Materials Chemistry. 22(28). 14119–14119. 50 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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