Homare Hiroi

1.1k total citations · 1 hit paper
18 papers, 1.0k citations indexed

About

Homare Hiroi is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Homare Hiroi has authored 18 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Electrical and Electronic Engineering, 17 papers in Materials Chemistry and 3 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Homare Hiroi's work include Chalcogenide Semiconductor Thin Films (18 papers), Quantum Dots Synthesis And Properties (17 papers) and Copper-based nanomaterials and applications (9 papers). Homare Hiroi is often cited by papers focused on Chalcogenide Semiconductor Thin Films (18 papers), Quantum Dots Synthesis And Properties (17 papers) and Copper-based nanomaterials and applications (9 papers). Homare Hiroi collaborates with scholars based in Japan, United States and Netherlands. Homare Hiroi's co-authors include H. Sugimoto, David B. Mitzi, Noriyuki Sakai, Takuya Kato, Tayfun Gokmen, Oki Gunawan, Yun Seog Lee, Jeehwan Kim, Wei Wang and Byungha Shin and has published in prestigious journals such as Advanced Materials, Applied Physics Letters and IEEE Journal of Photovoltaics.

In The Last Decade

Homare Hiroi

18 papers receiving 998 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.

High Efficiency Cu₂ZnSn(S,Se)₄ Solar Cells by Applying a Double In₂S₃/CdS Emitter

2014 413 citations Jeehwan Kim, Homare Hiroi et al. Advanced Materials profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Homare Hiroi Japan	11	998	964	180	31	19	18	1.0k
Jörn Timo Wätjen Sweden	13	1.3k 1.3×	1.2k 1.3×	265 1.5×	14 0.5×	12 0.6×	16	1.3k
Yi Ren Sweden	16	731 0.7×	699 0.7×	138 0.8×	17 0.5×	16 0.8×	33	759
U. Rühle Germany	8	579 0.6×	555 0.6×	137 0.8×	19 0.6×	12 0.6×	17	606
P. Uday Bhaskar India	14	923 0.9×	913 0.9×	69 0.4×	26 0.8×	13 0.7×	23	946
Josua Stückelberger Australia	15	925 0.9×	415 0.4×	347 1.9×	40 1.3×	48 2.5×	37	952
S.H. Demtsu United States	11	646 0.6×	544 0.6×	253 1.4×	25 0.8×	25 1.3×	18	677
Kai Siemer Germany	9	659 0.7×	640 0.7×	92 0.5×	48 1.5×	10 0.5×	20	706
F.A. Pulgarín-Agudelo Mexico	12	614 0.6×	611 0.6×	104 0.6×	19 0.6×	20 1.1×	22	633
Biwen Duan China	13	942 0.9×	903 0.9×	167 0.9×	12 0.4×	8 0.4×	15	955
Young‐Ill Kim South Korea	10	927 0.9×	881 0.9×	209 1.2×	9 0.3×	10 0.5×	20	945

Countries citing papers authored by Homare Hiroi

Since Specialization

Citations

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

Fields of papers citing papers by Homare Hiroi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Homare Hiroi

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

All Works

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18 of 18 papers shown

Kato, Takuya, Takeshi Yagioka, Kentaro Yamamoto, et al.. (2017). Enhanced Efficiency of Cd-Free Cu(In,Ga)(Se,S)2 Minimodule Via (Zn,Mg)O Second Buffer Layer and Alkali Metal Post-Treatment. IEEE Journal of Photovoltaics. 7(6). 1773–1780. 96 indexed citations

Hiroi, Homare, et al.. (2016). New World-Record Efficiency for Pure-Sulfide Cu(In,Ga)S₂Thin-Film Solar Cell With Cd-Free Buffer Layer via KCN-Free Process. IEEE Journal of Photovoltaics. 6(3). 760–763. 95 indexed citations

Hiroi, Homare, et al.. (2016). Progress Toward 1000-mV Open-Circuit Voltage on Chalcopyrite Solar Cells. IEEE Journal of Photovoltaics. 6(6). 1630–1634. 26 indexed citations

Hiroi, Homare, et al.. (2015). 960mV open circuit voltage chalcopyrite solar cell. 2014. 1–4. 2 indexed citations

Hiroi, Homare, et al.. (2015). 960-mV Open-Circuit Voltage Chalcopyrite Solar Cell. IEEE Journal of Photovoltaics. 6(1). 309–312. 21 indexed citations

Hiroi, Homare, et al.. (2015). Impact of buffer layer on kesterite solar cells. 1–4. 9 indexed citations

Kim, Jeehwan, Homare Hiroi, Teodor K. Todorov, et al.. (2014). High Efficiency Cu₂ZnSn(S,Se)₄ Solar Cells by Applying a Double In₂S₃/CdS Emitter. Advanced Materials. 26(44). 7427–7431. 413 indexed citations breakdown →

Hiroi, Homare, Jeehwan Kim, Teodor K. Todorov, et al.. (2014). Over 12% efficiency Cu<inf>2</inf>ZnSn(SeS)<inf>4</inf> solar cell via hybrid buffer layer. 30–32. 6 indexed citations

Kim, Jeehwan, Homare Hiroi, Teodor K. Todorov, et al.. (2014). Solar Cells: High Efficiency Cu₂ZnSn(S,Se)₄ Solar Cells by Applying a Double In₂S₃/CdS Emitter (Adv. Mater. 44/2014). Advanced Materials. 26(44). 7426–7426. 10 indexed citations

10.

Haight, Richard, Aaron R. Barkhouse, Wei Wang, et al.. (2014). CdS and Cd-Free Buffer Layers on Solution Phase Grown Cu₂ZnSn(S_xSe_{1- x})₄ :Band Alignments and Electronic Structure Determined with Femtosecond Ultraviolet Photoelectron Spectroscopy. MRS Proceedings. 1638. 4 indexed citations

11.

Hiroi, Homare, et al.. (2013). Open Circuit Voltage Improvement on Solution-based Cu2ZnSn(SeS)4 Solar Cells by Hybrid Buffer Layer. 1 indexed citations

12.

Hiroi, Homare, Noriyuki Sakai, Takuya Kato, & H. Sugimoto. (2013). High voltage Cu<inf>2</inf>ZnSnS<inf>4</inf> submodules by hybrid buffer layer. 863–866. 69 indexed citations

13.

Sugimoto, H., et al.. (2013). Lifetime improvement for high efficiency Cu<inf>2</inf>ZnSnS<inf>4</inf> submodules. 3208–3211. 37 indexed citations

14.

Barkhouse, D. Aaron R., Richard Haight, Noriyuki Sakai, et al.. (2012). Cd-free buffer layer materials on Cu2ZnSn(SxSe1−x)4: Band alignments with ZnO, ZnS, and In2S3. Applied Physics Letters. 100(19). 176 indexed citations

15.

Hiroi, Homare, et al.. (2012). Development of high efficiency Cu<inf>2</inf>ZnSnS<inf>4</inf> submodule with Cd-free buffer layer. 1811–1814. 12 indexed citations

16.

Sugimoto, H., et al.. (2012). Over 8% efficiency Cu<inf>2</inf>ZnSnS<inf>4</inf> submodules with ultra-thin absorber. 2997–3000. 21 indexed citations

17.

Sakai, Noriyuki, Homare Hiroi, & H. Sugimoto. (2011). Development of Cd-free buffer layer for Cu<inf>2</inf>ZnSnS<inf>4</inf> thin-film solar cells. 3654–3657. 17 indexed citations

18.

Hiroi, Homare, Noriyuki Sakai, & H. Sugimoto. (2011). Cd-free 5×5cm<sup>2</sup>-sized Cu<inf>2</inf>ZnSnS<inf>4</inf> submodules. 2719–2722. 1 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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