Jun‐ichi Hanna

4.5k total citations · 1 hit paper
160 papers, 3.8k citations indexed

About

Jun‐ichi Hanna is a scholar working on Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials and Materials Chemistry. According to data from OpenAlex, Jun‐ichi Hanna has authored 160 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 121 papers in Electrical and Electronic Engineering, 77 papers in Electronic, Optical and Magnetic Materials and 69 papers in Materials Chemistry. Recurrent topics in Jun‐ichi Hanna's work include Liquid Crystal Research Advancements (76 papers), Organic Electronics and Photovoltaics (65 papers) and Thin-Film Transistor Technologies (53 papers). Jun‐ichi Hanna is often cited by papers focused on Liquid Crystal Research Advancements (76 papers), Organic Electronics and Photovoltaics (65 papers) and Thin-Film Transistor Technologies (53 papers). Jun‐ichi Hanna collaborates with scholars based in Japan, Germany and United States. Jun‐ichi Hanna's co-authors include Hiroaki Iino, Masahiro Funahashi, Takayuki Usui, Isamu Shimizu, Hajime Shirai, Teruaki Mukaiyama, Toshio Sato, Richard J. Bushby, Akira Ohno and Debajyoti Das and has published in prestigious journals such as Physical Review Letters, Advanced Materials and Nature Communications.

In The Last Decade

Jun‐ichi Hanna

155 papers receiving 3.6k 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.

Liquid crystals for organic thin-film transistors

2015 500 citations Hiroaki Iino, Jun‐ichi Hanna et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jun‐ichi Hanna Japan	29	2.4k	1.7k	1.6k	742	683	160	3.8k
A.M. van de Craats Netherlands	18	1.5k 0.6×	1.4k 0.8×	1.4k 0.9×	810 1.1×	674 1.0×	27	3.0k
J. Simmerer Germany	17	1.6k 0.6×	981 0.6×	959 0.6×	647 0.9×	742 1.1×	21	2.6k
Peter Schuhmacher Germany	17	921 0.4×	1.6k 0.9×	1.0k 0.7×	948 1.3×	444 0.7×	26	2.6k
Yo Shimizu Japan	31	1.1k 0.4×	1.9k 1.1×	1.7k 1.1×	984 1.3×	486 0.7×	185	3.3k
M. Carmen Ruiz Delgado Spain	31	2.1k 0.8×	696 0.4×	1.3k 0.8×	899 1.2×	1.0k 1.5×	130	3.3k
Jorge Piris Netherlands	21	1.9k 0.8×	681 0.4×	1.4k 0.9×	507 0.7×	899 1.3×	34	2.9k
Harald Böck France	37	1.3k 0.5×	1.5k 0.9×	2.2k 1.4×	2.3k 3.1×	435 0.6×	167	4.4k
Akiko Nakao Japan	25	1.3k 0.5×	1.5k 0.9×	997 0.6×	383 0.5×	441 0.6×	90	3.0k
Hiroaki Tachibana Japan	29	1.4k 0.6×	702 0.4×	1.4k 0.9×	805 1.1×	337 0.5×	147	3.4k
Graeme Cooke United Kingdom	35	1.2k 0.5×	912 0.5×	1.4k 0.9×	1.6k 2.1×	868 1.3×	175	4.2k

Countries citing papers authored by Jun‐ichi Hanna

Since Specialization

Citations

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

Fields of papers citing papers by Jun‐ichi Hanna

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jun‐ichi Hanna. 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 Jun‐ichi Hanna. The network helps show where Jun‐ichi Hanna may publish in the future.

Co-authorship network of co-authors of Jun‐ichi Hanna

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

All Works

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20 of 20 papers shown

Suzuki, I., Jun‐ichi Hanna, & Hiroaki Iino. (2024). High-speed blade-coating using liquid crystalline organic semiconductor Ph-BTBT-10. Applied Physics Express. 17(5). 51007–51007. 6 indexed citations

Ohno, Akira, Jun‐ichi Hanna, Hiroaki Iino, et al.. (2023). Universally Exhaustive Generation of Molecular Structures and Prediction of Their Electronic States Using Machine Learning for N‐type Organic Transistor Materials. Chemistry - An Asian Journal. 18(8). e202300029–e202300029. 3 indexed citations

Hanna, Jun‐ichi, et al.. (2023). High-performance organic field effect transistor of liquid crystalline organic semiconductor using silver electrodes with bottom-gate top-contact configuration. Applied Physics Express. 16(9). 91005–91005.

Hanna, Jun‐ichi, et al.. (2023). Interface engineering to enhance charge carrier injection in Ph-BTBT-10 organic thin-film transistor with silver source-drain electrodes. Molecular Crystals and Liquid Crystals. 761(1). 79–86. 4 indexed citations

Suzuki, I., et al.. (2023). Flexible Organic Thin‐Film Transistors with Liquid‐Crystalline Organic Semiconductor, Ph‐BTBT‐10. physica status solidi (a). 220(24). 2 indexed citations

Hanna, Jun‐ichi, et al.. (2022). Study of Near-infrared Organic Photodetectors with Octa-substituted Alkyl and Alkoxy Phthalocyanine Derivatives. 1 indexed citations

Hanna, Jun‐ichi, et al.. (2021). Use of doping to achieve low contact resistance in bottom-gate top-contact type organic transistor with liquid-crystalline organic semiconductor, Ph-BTBT-10. Japanese Journal of Applied Physics. 60(SB). SBBG08–SBBG08. 5 indexed citations

Wang, Yifei, Hiroaki Iino, & Jun‐ichi Hanna. (2017). Fabrication of planarly-oriented polycrystalline thin films of smectic liquid crystalline organic semiconductors. Soft Matter. 13(37). 6499–6505. 13 indexed citations

Yang, Tengzhou, Hiroaki Iino, & Jun‐ichi Hanna. (2016). Novel smectic liquid crystals based on benzo[c]cinnoline: their synthesis, mesomorphism, opto- and electro-chemical properties. Liquid Crystals. 44(4). 666–673. 12 indexed citations

10.

Iino, Hiroaki & Jun‐ichi Hanna. (2011). Availability of Liquid Crystallinity in Solution Processing for Polycrystalline Thin Films. Advanced Materials. 23(15). 1748–1751. 114 indexed citations

11.

Funahashi, Masahiro, Fapei Zhang, Nobuyuki Tamaoki, & Jun‐ichi Hanna. (2008). Ambipolar Transport in the Smectic E Phase of 2‐Propyl‐5′′‐Hexynylterthiophene Derivative over a Wide Temperature Range. ChemPhysChem. 9(10). 1465–1473. 44 indexed citations

12.

Hanna, Jun‐ichi, et al.. (2006). A Study on positive hole injection from electrode to liquid-crystalline semiconductor. Technical programs and proceedings. 22(1). 29–32. 1 indexed citations

13.

Hanna, Jun‐ichi & Masahiro Funahashi. (2004). Electronic Conduction in Liquid Crystals and Materials Design for its Characterization and Device Application in the Future. Journal of Synthetic Organic Chemistry Japan. 62(8). 799–810. 3 indexed citations

14.

Funahashi, Masahiro & Jun‐ichi Hanna. (2004). Impurity effect on charge carrier transport in smectic liquid crystals. Chemical Physics Letters. 397(4-6). 319–323. 42 indexed citations

15.

Funahashi, Masahiro, et al.. (2003). Enhanced light emission from self-organizing molecular semiconductor by using organic thin film transistor. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4800. 229–229.

16.

Funahashi, Masahiro, et al.. (2001). Impurity Effect in Self-organizing Molecular Semiconductors. Technical programs and proceedings. 17(1). 546–549.

17.

Funahashi, Masahiro & Jun‐ichi Hanna. (2000). Photoconductive Smectic Liquid Crystals and Their Application to Opto-Electronic Devices.. Journal of Synthetic Organic Chemistry Japan. 58(9). 887–892. 2 indexed citations

18.

Hanna, Jun‐ichi, et al.. (1998). Direct Nucleation and Selective Growth of Nuclei for High Crystallinity Poly-Sige Thin Films on Sio₂ Substrates. MRS Proceedings. 507. 7 indexed citations

19.

Kubo, Izumi, Jun‐ichi Hanna, Shigeru Yamamoto, & Hiroshi Kokado. (1988). Hole Injection from Polypyrrole Electrode into Organic Photoconductors. Japanese Journal of Applied Physics. 27(6R). 1054–1054. 8 indexed citations

20.

Shirai, Hajime, Akihito Tanabe, Jun‐ichi Hanna, et al.. (1986). Designing New Materials with Amorphous Semiconductors–Structure and Electrical Properties of Multiply Stacked a-Si/a-SiGe_x Layers–. Japanese Journal of Applied Physics. 25(7A). L537–L537. 8 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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