{"id":"https://openalex.org/A5101769890","orcid":"https://orcid.org/0000-0002-7583-6641","observed_orcids":["https://orcid.org/0000-0002-7583-6641"],"display_name":"S. Sivakumar","raw_author_names":["S Sivakumar","S. Sivakumar"],"full_name":"Sarika Sivakumar","works_count":17,"cited_by_count":408,"summary_stats":{"2yr_mean_citedness":5.0,"h_index":10,"i10_index":10},"ids":{"openalex":"https://openalex.org/A5101769890","orcid":"https://orcid.org/0000-0002-7583-6641","observed_orcids":["https://orcid.org/0000-0002-7583-6641"]},"affiliations":[{"institution":{"id":"https://openalex.org/I197081775","ror":"https://ror.org/01x24z140","display_name":"Annamalai University","country_code":"IN","type":"education","lineage":["https://openalex.org/I197081775"]},"years":[2026,2025,2023,2022,2015,2014,2013]}],"last_known_institutions":[{"id":"https://openalex.org/I197081775","ror":"https://ror.org/01x24z140","display_name":"Annamalai University","country_code":"IN","type":"education","lineage":["https://openalex.org/I197081775"]}],"topics":[{"id":"https://openalex.org/T13104","display_name":"Chemical and Physical Properties of Materials","count":7,"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/T10079","display_name":"Nanoparticles: synthesis and applications","count":6,"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/T10090","display_name":"ZnO doping and properties","count":6,"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/T10179","display_name":"Supercapacitor Materials and Fabrication","count":5,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"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/T10078","display_name":"Advanced Photocatalysis Techniques","count":4,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12211","display_name":"Aluminum toxicity and tolerance in plants and animals","value":0.0001055,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13104","display_name":"Chemical and Physical Properties of Materials","value":5.03e-05,"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/T11907","display_name":"Copper-based nanomaterials and applications","value":3.05e-05,"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/T10090","display_name":"ZnO doping and properties","value":2.76e-05,"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/T10079","display_name":"Nanoparticles: synthesis and applications","value":2.57e-05,"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":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9158470630645752},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.9060966968536377},{"id":"155672457","wikidata":"https://www.wikidata.org/wiki/Q61231","display_name":"Nanoparticle","score":0.7805147171020508},{"id":"171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","score":0.581443727016449},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.0}],"counts_by_year":[{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2014,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2015,"works_count":2,"oa_works_count":0,"cited_by_count":10},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2018,"works_count":1,"oa_works_count":0,"cited_by_count":24},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":21},{"year":2021,"works_count":1,"oa_works_count":0,"cited_by_count":28},{"year":2022,"works_count":5,"oa_works_count":2,"cited_by_count":21},{"year":2023,"works_count":1,"oa_works_count":0,"cited_by_count":50},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":66},{"year":2025,"works_count":1,"oa_works_count":0,"cited_by_count":80},{"year":2026,"works_count":1,"oa_works_count":0,"cited_by_count":66}],"display_name_alternatives":["S Sivakumar","S. Sivakumar"],"block_key":"s sivakumar","works_api_url":"https://api.openalex.org/works?filter=author.id:A5101769890","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5101769890","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}
