{"id":"https://openalex.org/A5113636331","orcid":"https://orcid.org/0000-0001-6804-7217","observed_orcids":["https://orcid.org/0000-0001-6804-7217"],"display_name":"Yoshiki Sakuma","raw_author_names":["Sakuma, Y.","Y Sakuma","Y. SAKUMA","Y. Sakuma","YOSHIKI SAKUMA","Yoshiki SAKUMA","Yoshiki Sakuma"],"full_name":"Sakuma, Yoshiki","works_count":227,"cited_by_count":3142,"summary_stats":{"2yr_mean_citedness":1.5714285714285714,"h_index":29,"i10_index":74},"ids":{"openalex":"https://openalex.org/A5113636331","orcid":"https://orcid.org/0000-0001-6804-7217","observed_orcids":["https://orcid.org/0000-0001-6804-7217"]},"affiliations":[{"institution":{"id":"https://openalex.org/I146399215","ror":"https://ror.org/02956yf07","display_name":"University of Tsukuba","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]},"years":[2011,2008]},{"institution":{"id":"https://openalex.org/I159385669","ror":"https://ror.org/01hjzeq58","display_name":"Chiba University","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]},"years":[2002]},{"institution":{"id":"https://openalex.org/I201537933","ror":"https://ror.org/01dq60k83","display_name":"Tohoku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]},"years":[1998,1997,1996,1988,1987,1986]},{"institution":{"id":"https://openalex.org/I203951103","ror":"https://ror.org/02kn6nx58","display_name":"Keio University","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]},"years":[2012]},{"institution":{"id":"https://openalex.org/I205401836","ror":"https://ror.org/026v1ze26","display_name":"National Institute for Materials Science","country_code":"JP","type":"facility","lineage":["https://openalex.org/I205401836"]},"years":[2026,2025,2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004]},{"institution":{"id":"https://openalex.org/I2252096349","ror":"https://ror.org/038e2g226","display_name":"Fujitsu (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]},"years":[2003,2002,2001,2000,1999,1998,1997,1996,1995,1994,1993,1991,1990,1988]},{"institution":{"id":"https://openalex.org/I4210086780","ror":"https://ror.org/00097mb19","display_name":"Japan Science and Technology Agency","country_code":"JP","type":"government","lineage":["https://openalex.org/I1319490839","https://openalex.org/I4210086780"]},"years":[2008,2005]},{"institution":{"id":"https://openalex.org/I73613424","ror":"https://ror.org/01703db54","display_name":"National Institute of Advanced Industrial Science and Technology","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]},"years":[2011]}],"last_known_institutions":[{"id":"https://openalex.org/I205401836","ror":"https://ror.org/026v1ze26","display_name":"National Institute for Materials Science","country_code":"JP","type":"facility","lineage":["https://openalex.org/I205401836"]}],"topics":[{"id":"https://openalex.org/T10022","display_name":"Semiconductor Quantum Structures and Devices","count":142,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11853","display_name":"Semiconductor materials and interfaces","count":64,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10382","display_name":"Quantum and electron transport phenomena","count":47,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10275","display_name":"2D Materials and Applications","count":42,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10321","display_name":"Quantum Dots Synthesis And Properties","count":40,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10022","display_name":"Semiconductor Quantum Structures and Devices","value":0.0003593,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12309","display_name":"solar cell performance optimization","value":0.0002562,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10321","display_name":"Quantum Dots Synthesis And Properties","value":0.000215,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11128","display_name":"Transition Metal Oxide Nanomaterials","value":0.0001504,"subfield":{"id":"https://openalex.org/subfields/2507","display_name":"Polymers and Plastics"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10275","display_name":"2D Materials and Applications","value":0.0001497,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.9229611754417419},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9117926359176636},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.7973045110702515},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.7498493194580078},{"id":"171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","score":0.6386189460754395}],"counts_by_year":[{"year":1986,"works_count":1,"oa_works_count":1,"cited_by_count":14},{"year":1987,"works_count":1,"oa_works_count":0,"cited_by_count":4},{"year":1988,"works_count":5,"oa_works_count":1,"cited_by_count":44},{"year":1990,"works_count":5,"oa_works_count":0,"cited_by_count":80},{"year":1991,"works_count":5,"oa_works_count":0,"cited_by_count":66},{"year":1993,"works_count":2,"oa_works_count":0,"cited_by_count":12},{"year":1994,"works_count":5,"oa_works_count":0,"cited_by_count":16},{"year":1995,"works_count":1,"oa_works_count":0,"cited_by_count":82},{"year":1996,"works_count":5,"oa_works_count":0,"cited_by_count":32},{"year":1997,"works_count":3,"oa_works_count":1,"cited_by_count":3},{"year":1998,"works_count":6,"oa_works_count":1,"cited_by_count":44},{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":4},{"year":2000,"works_count":5,"oa_works_count":0,"cited_by_count":13},{"year":2001,"works_count":3,"oa_works_count":0,"cited_by_count":2},{"year":2002,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":13},{"year":2004,"works_count":4,"oa_works_count":2,"cited_by_count":175},{"year":2005,"works_count":7,"oa_works_count":2,"cited_by_count":331},{"year":2006,"works_count":5,"oa_works_count":3,"cited_by_count":122},{"year":2007,"works_count":13,"oa_works_count":4,"cited_by_count":228},{"year":2008,"works_count":11,"oa_works_count":2,"cited_by_count":48},{"year":2009,"works_count":3,"oa_works_count":1,"cited_by_count":14},{"year":2010,"works_count":3,"oa_works_count":1,"cited_by_count":94},{"year":2011,"works_count":8,"oa_works_count":3,"cited_by_count":118},{"year":2012,"works_count":8,"oa_works_count":2,"cited_by_count":125},{"year":2013,"works_count":10,"oa_works_count":2,"cited_by_count":175},{"year":2014,"works_count":11,"oa_works_count":4,"cited_by_count":156},{"year":2015,"works_count":8,"oa_works_count":3,"cited_by_count":334},{"year":2016,"works_count":16,"oa_works_count":3,"cited_by_count":165},{"year":2017,"works_count":6,"oa_works_count":2,"cited_by_count":38},{"year":2018,"works_count":7,"oa_works_count":1,"cited_by_count":15},{"year":2019,"works_count":12,"oa_works_count":4,"cited_by_count":148},{"year":2020,"works_count":5,"oa_works_count":2,"cited_by_count":92},{"year":2021,"works_count":9,"oa_works_count":3,"cited_by_count":252},{"year":2022,"works_count":2,"oa_works_count":0,"cited_by_count":12},{"year":2023,"works_count":5,"oa_works_count":3,"cited_by_count":38},{"year":2024,"works_count":5,"oa_works_count":2,"cited_by_count":19},{"year":2025,"works_count":6,"oa_works_count":5,"cited_by_count":8},{"year":2026,"works_count":10,"oa_works_count":4,"cited_by_count":6}],"display_name_alternatives":["Sakuma, Y.","Y Sakuma","Y. SAKUMA","Y. Sakuma","YOSHIKI SAKUMA","Yoshiki SAKUMA","Yoshiki Sakuma"],"block_key":"y sakuma","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113636331","updated_date":"2026-10-18T12:41:17","created_date":"2016-06-24T00:00:00"}
