Koji Asaka

969 total citations
57 papers, 786 citations indexed

About

Koji Asaka is a scholar working on Materials Chemistry, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering. According to data from OpenAlex, Koji Asaka has authored 57 papers receiving a total of 786 indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Materials Chemistry, 16 papers in Atomic and Molecular Physics, and Optics and 16 papers in Electrical and Electronic Engineering. Recurrent topics in Koji Asaka's work include Carbon Nanotubes in Composites (40 papers), Graphene research and applications (25 papers) and Force Microscopy Techniques and Applications (9 papers). Koji Asaka is often cited by papers focused on Carbon Nanotubes in Composites (40 papers), Graphene research and applications (25 papers) and Force Microscopy Techniques and Applications (9 papers). Koji Asaka collaborates with scholars based in Japan, Switzerland and United Kingdom. Koji Asaka's co-authors include Yahachi Saito, Tokushi Kizuka, Ryozo Yoshizaki, Hitoshi Nakahara, Kun’ichi Miyazawa, Takeshi Koyama, Hideo Kishida, Arao Nakamura, Tsugio Tadaki and Yasuaki Masumoto and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Physical Review B.

In The Last Decade

Koji Asaka

56 papers receiving 770 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Koji Asaka Japan	17	578	289	248	172	114	57	786
Nae Sung Lee South Korea	13	1.0k 1.8×	166 0.6×	313 1.3×	101 0.6×	100 0.9×	23	1.1k
Shin‐ichi Honda Japan	16	723 1.3×	351 1.2×	260 1.0×	221 1.3×	48 0.4×	78	965
Patrick Wilhite United States	14	529 0.9×	234 0.8×	122 0.5×	75 0.4×	34 0.3×	39	634
D.N. Zakharov Russia	12	540 0.9×	105 0.4×	138 0.6×	69 0.4×	98 0.9×	20	637
C.H.P. Poa United Kingdom	15	672 1.2×	265 0.9×	279 1.1×	88 0.5×	64 0.6×	27	860
J. Vavro United States	9	796 1.4×	152 0.5×	222 0.9×	146 0.8×	69 0.6×	11	914
Youngwoo Kwon South Korea	5	720 1.2×	291 1.0×	260 1.0×	85 0.5×	28 0.2×	7	874
Kati Biedermann Germany	16	768 1.3×	437 1.5×	111 0.4×	69 0.4×	65 0.6×	30	946
Filippo Cellini United States	15	364 0.6×	104 0.4×	213 0.9×	102 0.6×	45 0.4×	21	602
P. Dąbrowski Poland	17	709 1.2×	406 1.4×	229 0.9×	178 1.0×	20 0.2×	50	878

Countries citing papers authored by Koji Asaka

Since Specialization

Citations

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

Fields of papers citing papers by Koji Asaka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Asaka

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Shibayama, Shigehisa, et al.. (2023). Self-organized Ge_1−xSn _x quantum dots formed on insulators and their room temperature photoluminescence. Japanese Journal of Applied Physics. 62(7). 75506–75506. 1 indexed citations

Asaka, Koji, et al.. (2021). Solid-phase crystallization of ultra-thin amorphous Ge layers on insulators. Japanese Journal of Applied Physics. 61(SC). SC1086–SC1086. 5 indexed citations

Asaka, Koji, et al.. (2020). Light emission and structural changes in a suspended multiwall carbon nanotube on application of electric current. Diamond and Related Materials. 111. 108175–108175. 2 indexed citations

Asaka, Koji, et al.. (2019). Raman spectroscopy and transmission electron microscopy of long linear atomic carbon chains generated by field electron emission accompanied with electrical discharge of carbon nanotube films. SN Applied Sciences. 1(5). 5 indexed citations

Sasaki, M., Takeshi Koyama, Hideo Kishida, et al.. (2017). Facile Synthetic Route to Atomically Thin Conductive Wires from Single-Species Molecules in One-Dimensionally Confined Space: Doped Conjugated Polymers inside Single-Walled Carbon Nanotubes. The Journal of Physical Chemistry Letters. 8(8). 1702–1706. 12 indexed citations

Asaka, Koji, Tomohiro Terada, & Yahachi Saito. (2014). Transformation of silicon nanoparticles on a carbon nanotube heater into hollow graphitic nanocapsules via silicon carbide. Diamond and Related Materials. 50. 49–54. 7 indexed citations

Asaka, Koji, et al.. (2012). Evolution of Field Electron Emission Pattern from Multilayered Graphene Induced by Structural Change of Edge. Applied Physics Express. 5(5). 55101–55101. 27 indexed citations

Asaka, Koji, et al.. (2011). In situ TEM study on the improvement of contact resistance between a carbon nanotube and metal electrodes by local melting. Surface and Interface Analysis. 44(6). 674–677. 2 indexed citations

Koyama, Takeshi, Yasumitsu Miyata, Koji Asaka, et al.. (2011). Ultrafast energy transfer of one-dimensional excitons between carbon nanotubes: a femtosecond time-resolved luminescence study. Physical Chemistry Chemical Physics. 14(3). 1070–1084. 31 indexed citations

10.

Sugiura, Yasushi, Huarong Liu, Kazuo Kajiwara, et al.. (2011). Fabrication of Gas Field Ion Emitter by Field Induced Oxygen Etching Method. e-Journal of Surface Science and Nanotechnology. 9. 344–347. 8 indexed citations

11.

Koyama, Takeshi, et al.. (2011). Ultrafast Exciton Energy Transfer in Bundles of Single-Walled Carbon Nanotubes. The Journal of Physical Chemistry Letters. 2(3). 127–132. 33 indexed citations

12.

Asaka, Koji, Tadachika Nakayama, Kun’ichi Miyazawa, & Yahachi Saito. (2011). Study on structure of heat‐treated fullerene nanowhiskers and their field electron emission characteristics. Surface and Interface Analysis. 44(6). 780–783. 6 indexed citations

13.

Saito, Yahachi, et al.. (2010). Field emission microscopy of Al-deposited carbon nanotubes: Emission stability improvement and image of an Al atom cluster. Journal of Vacuum Science & Technology B Nanotechnology and Microelectronics Materials Processing Measurement and Phenomena. 28(2). C2A5–C2A8. 3 indexed citations

14.

Koyama, Takeshi, et al.. (2010). Femtosecond luminescence decay due to exciton energy transfer in single-walled carbon nanotube bundles. Journal of Luminescence. 131(3). 494–497. 3 indexed citations

15.

Asaka, Koji, et al.. (2010). In-situ transmission electron microscopy of structural change of the contact between a carbon nanotube and gold by local Joule heating. 447–450. 2 indexed citations

16.

Asaka, Koji, Kun’ichi Miyazawa, & Tokushi Kizuka. (2009). The toughness of multi-wall carbon nanocapsules. Nanotechnology. 20(38). 385705–385705. 6 indexed citations

17.

Muoth, Matthias, Fabian Gramm, Koji Asaka, et al.. (2009). Tilted-view transmission electron microscopy-access for chirality assignment to carbon nanotubes integrated in MEMS. Procedia Chemistry. 1(1). 601–604. 3 indexed citations

18.

Asaka, Koji, et al.. (2007). Conductance of carbon nanocapsule junctions. Physical Review B. 76(11). 14 indexed citations

19.

Kizuka, Tokushi, et al.. (2005). Measurements of the atomistic mechanics of single crystalline silicon wires of nanometer width. Physical Review B. 72(3). 112 indexed citations

20.

Asaka, Koji, Yoshihiko Hirotsu, & Tsugio Tadaki. (2001). Structure of nanometer-sized Au–Cd alloy particles near equiatomic compositions at room temperature. Materials Science and Engineering A. 312(1-2). 232–236. 6 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