{"id":"https://openalex.org/W2806445786","doi":"https://doi.org/10.1038/s41598-018-22424-4","title":"Polarity-inverted lateral overgrowth and selective wet-etching and regrowth (PILOSWER) of GaN","display_name":"Polarity-inverted lateral overgrowth and selective wet-etching and regrowth (PILOSWER) of GaN","publication_year":2018,"publication_date":"2018-03-01","ids":{"openalex":"https://openalex.org/W2806445786","doi":"https://doi.org/10.1038/s41598-018-22424-4","mag":"2806445786","pmid":"https://pubmed.ncbi.nlm.nih.gov/29515140","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/5841315"},"language":"en","primary_location":{"id":"doi:10.1038/s41598-018-22424-4","doi":"https://doi.org/10.1038/s41598-018-22424-4","is_oa":true,"landing_page_url":"https://doi.org/10.1038/s41598-018-22424-4","pdf_url":"https://www.nature.com/articles/s41598-018-22424-4.pdf","source":{"id":"https://openalex.org/S196734849","display_name":"Scientific Reports","issn_l":"2045-2322","issn":["2045-2322"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Scientific Reports","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.nature.com/articles/s41598-018-22424-4.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5045328955","display_name":"Dongsoo Jang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Dongsoo Jang","raw_affiliation_strings":["Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017887644","display_name":"Miyeon Jue","orcid":"https://orcid.org/0009-0006-0260-1258","observed_orcids":["https://orcid.org/0009-0006-0260-1258"]},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Miyeon Jue","raw_affiliation_strings":["Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5104091572","display_name":"Donghoi Kim","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Donghoi Kim","raw_affiliation_strings":["Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035494427","display_name":"Hwa Seob Kim","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hwa Seob Kim","raw_affiliation_strings":["Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048985011","display_name":"Hyunkyu Lee","orcid":"https://orcid.org/0000-0001-6802-7857","observed_orcids":["https://orcid.org/0000-0001-6802-7857","https://orcid.org/0000-0001-9134-1748","https://orcid.org/0000-0002-8568-3343"]},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyunkyu Lee","raw_affiliation_strings":["Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047992720","display_name":"Chinkyo Kim","orcid":"https://orcid.org/0000-0002-4218-7665","observed_orcids":["https://orcid.org/0000-0002-4218-7665"]},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Chinkyo Kim","raw_affiliation_strings":["Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea. ckim@khu.ac.kr","Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea. ckim@khu.ac.kr","institution_ids":["https://openalex.org/I35928602"]},{"raw_affiliation_string":"Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea","institution_ids":["https://openalex.org/I35928602"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5047992720"],"corresponding_institution_ids":["https://openalex.org/I35928602"],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":{"value":2690,"currency":"USD","value_usd":2690},"fwci":0.8387,"has_fulltext":true,"cited_by_count":12,"citation_normalized_percentile":{"value":0.70398482,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"8","issue":"1","first_page":"4112","last_page":"4112"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10099","display_name":"GaN-based semiconductor devices and materials","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10099","display_name":"GaN-based semiconductor devices and materials","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"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/T10361","display_name":"Silicon Carbide Semiconductor Technologies","score":0.0,"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/T11160","display_name":"Acoustic Wave Resonator Technologies","score":0.0,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/gan","display_name":"GaN","score":0.8600000143051147},{"id":"https://openalex.org/keywords/polarity-reversal","display_name":"polarity reversal","score":0.8330000042915344},{"id":"https://openalex.org/keywords/lateral-overgrowth","display_name":"lateral overgrowth","score":0.9800000190734863},{"id":"https://openalex.org/keywords/selective-wet-etching","display_name":"selective wet etching","score":0.8299999833106995},{"id":"https://openalex.org/keywords/regrowth","display_name":"regrowth","score":0.9160000085830688},{"id":"https://openalex.org/keywords/n-polar-gan","display_name":"N-polar GaN","score":0.8399999737739563},{"id":"https://openalex.org/keywords/ga-polar-gan","display_name":"Ga-polar GaN","score":0.9950000047683716},{"id":"https://openalex.org/keywords/c-plane-sapphire-substrate","display_name":"c-plane sapphire substrate","score":0.7400000095367432},{"id":"https://openalex.org/keywords/sio2-patterning","display_name":"SiO2 patterning","score":0.8460000157356262},{"id":"https://openalex.org/keywords/dielectric-mask","display_name":"dielectric mask","score":0.7070000171661377},{"id":"https://openalex.org/keywords/threading-dislocations","display_name":"threading dislocations","score":0.7720000147819519}],"concepts":[{"id":"https://openalex.org/C2777361361","wikidata":"https://www.wikidata.org/wiki/Q1112585","display_name":"Polarity (international relations)","level":3,"score":0.6951690912246704},{"id":"https://openalex.org/C100460472","wikidata":"https://www.wikidata.org/wiki/Q2368605","display_name":"Etching (microfabrication)","level":3,"score":0.655613362789154},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5853856205940247},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.5236063599586487},{"id":"https://openalex.org/C12554922","wikidata":"https://www.wikidata.org/wiki/Q7100","display_name":"Biophysics","level":1,"score":0.3602573871612549},{"id":"https://openalex.org/C95444343","wikidata":"https://www.wikidata.org/wiki/Q7141","display_name":"Cell biology","level":1,"score":0.34608232975006104},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.3314730226993561},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.3182620406150818},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.24495339393615723},{"id":"https://openalex.org/C1491633281","wikidata":"https://www.wikidata.org/wiki/Q7868","display_name":"Cell","level":2,"score":0.08611705899238586},{"id":"https://openalex.org/C2779227376","wikidata":"https://www.wikidata.org/wiki/Q6505497","display_name":"Layer (electronics)","level":2,"score":0.08594885468482971},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.06871268153190613}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1038/s41598-018-22424-4","doi":"https://doi.org/10.1038/s41598-018-22424-4","is_oa":true,"landing_page_url":"https://doi.org/10.1038/s41598-018-22424-4","pdf_url":"https://www.nature.com/articles/s41598-018-22424-4.pdf","source":{"id":"https://openalex.org/S196734849","display_name":"Scientific Reports","issn_l":"2045-2322","issn":["2045-2322"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Scientific Reports","raw_type":"journal-article"},{"id":"pmh:oai:europepmc.org:4754754","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/5841315","pdf_url":null,"source":{"id":"https://openalex.org/S4306400806","display_name":"Europe PMC (PubMed Central)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1303153112","host_organization_name":"European Bioinformatics Institute","host_organization_lineage":["https://openalex.org/I1303153112"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"Text"},{"id":"pmid:29515140","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/29515140","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Scientific reports","raw_type":"Journal Article"},{"id":"pmh:oai:pubmedcentral.nih.gov:5841315","doi":null,"is_oa":true,"landing_page_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC5841315/","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sci Rep","raw_type":"Text"},{"id":"pmh:oai:doaj.org/article:0d021813010843aaaeedd7b7e36f58cc","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/0d021813010843aaaeedd7b7e36f58cc","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1038/s41598-018-22424-4","doi":"https://doi.org/10.1038/s41598-018-22424-4","is_oa":true,"landing_page_url":"https://doi.org/10.1038/s41598-018-22424-4","pdf_url":"https://www.nature.com/articles/s41598-018-22424-4.pdf","source":{"id":"https://openalex.org/S196734849","display_name":"Scientific Reports","issn_l":"2045-2322","issn":["2045-2322"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Scientific Reports","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G5475943968","display_name":null,"funder_award_id":"2017R1D1A1A09000556","funder_id":"https://openalex.org/F4320322349","funder_display_name":"Ministry of Education, Science and Technology"},{"id":"https://openalex.org/G6099895493","display_name":null,"funder_award_id":"2017R1D1A1A09000556","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"}],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"},{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"},{"id":"https://openalex.org/F4320322349","display_name":"Ministry of Education, Science and Technology","ror":"https://ror.org/01p262204"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2806445786.pdf","grobid_xml":"https://content.openalex.org/works/W2806445786.grobid-xml"},"referenced_works_count":28,"referenced_works":["https://openalex.org/W1967188696","https://openalex.org/W1970073717","https://openalex.org/W1970449751","https://openalex.org/W1972135606","https://openalex.org/W1973821320","https://openalex.org/W1973867308","https://openalex.org/W1979643271","https://openalex.org/W2004150821","https://openalex.org/W2012420657","https://openalex.org/W2013428011","https://openalex.org/W2018553044","https://openalex.org/W2021118227","https://openalex.org/W2022835781","https://openalex.org/W2027995093","https://openalex.org/W2031271189","https://openalex.org/W2045130181","https://openalex.org/W2045625707","https://openalex.org/W2046127276","https://openalex.org/W2049408054","https://openalex.org/W2051133911","https://openalex.org/W2056264148","https://openalex.org/W2060013444","https://openalex.org/W2074249148","https://openalex.org/W2086014626","https://openalex.org/W2132903340","https://openalex.org/W2314759015","https://openalex.org/W2332376409","https://openalex.org/W2334187139"],"related_works":["https://openalex.org/W3046808409","https://openalex.org/W2031911484","https://openalex.org/W2937536375","https://openalex.org/W2038379978","https://openalex.org/W2563709753","https://openalex.org/W1996712373","https://openalex.org/W2052557295","https://openalex.org/W2059871764","https://openalex.org/W2102887216","https://openalex.org/W1970449751"],"abstract_inverted_index":{"Abstract":[0],"On":[1],"an":[2,150],"SiO2-patterned":[3,164],"c-plane":[4],"sapphire":[5,130],"substrate,":[6],"GaN":[7,22,31,54,113,121,154],"domains":[8],"were":[9],"grown":[10,24],"with":[11,17,65],"their":[12],"polarity":[13,40],"controlled":[14],"in":[15,142],"accordance":[16],"the":[18,44,47,56,86,109,118,125,129,163],"pattern.":[19],"While":[20],"N-polar":[21,53],"was":[23,32,63,71,94,114],"on":[25,35,55,85,92,117,124],"hexagonally":[26],"arranged":[27],"circular":[28,48,57,87,126],"openings,":[29],"Ga-polar":[30,120],"laterally":[33],"overgrown":[34],"mask":[36,104],"regions":[37],"due":[38],"to":[39,158],"inversion":[41],"occurring":[42],"at":[43],"boundary":[45],"of":[46,52,82,89,112,128,139],"openings.":[49],"After":[50,76],"etching":[51],"openings":[58,88,127],"by":[59,68,74],"H3PO4,":[60],"this":[61,143],"template":[62],"coated":[64],"40-nm":[66],"Si":[67,83],"sputtering":[69],"and":[70,99,152],"slightly":[72],"etched":[73],"KOH.":[75],"slight":[77],"etching,":[78],"a":[79,102],"thin":[80],"layer":[81],"left":[84],"sapphire,but":[90],"not":[91,123],"GaN,":[93],"oxidized":[95],"during":[96,105],"thermal":[97],"annealing":[98],"served":[100],"as":[101],"dielectric":[103],"subsequent":[106,110],"regrowth.":[107],"Thus,":[108],"growth":[111],"made":[115],"only":[116],"existing":[119],"domains,":[122],"substrate.":[131],"Transmission":[132],"electron":[133],"microscopy":[134],"analysis":[135],"revealed":[136],"no":[137],"sign":[138],"threading":[140],"dislocations":[141],"film.":[144],"This":[145],"approach":[146],"may":[147],"help":[148],"fabricating":[149],"unholed":[151],"merged":[153],"film":[155],"physically":[156],"attached":[157],"but":[159],"epitaxially":[160],"separated":[161],"from":[162],"sapphire.":[165]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2018-06-13T00:00:00"}