{"id":"https://openalex.org/W4401034233","doi":"https://doi.org/10.48048/tis.2024.8432","title":"Effects of pH on the Structural and Optical Properties of CaAl2O4: Eu2+, Dy3+ Nanoparticles","display_name":"Effects of pH on the Structural and Optical Properties of CaAl2O4: Eu2+, Dy3+ Nanoparticles","publication_year":2024,"publication_date":"2024-07-26","ids":{"openalex":"https://openalex.org/W4401034233","doi":"https://doi.org/10.48048/tis.2024.8432"},"language":"en","primary_location":{"id":"doi:10.48048/tis.2024.8432","doi":"https://doi.org/10.48048/tis.2024.8432","is_oa":true,"landing_page_url":"https://doi.org/10.48048/tis.2024.8432","pdf_url":null,"source":{"id":"https://openalex.org/S4210171953","display_name":"Trends in Sciences","issn_l":"2774-0226","issn":["2774-0226"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["poland-20"],"host_organization":"https://openalex.org/P4310319383","host_organization_name":"Walailak University","host_organization_lineage":["https://openalex.org/P4310319383"],"host_organization_lineage_names":["Walailak University"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Trends in Sciences","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://doi.org/10.48048/tis.2024.8432","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5105106401","display_name":"Samuel Ndungu Waithira","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I3132506069","display_name":"University of Embu","ror":"https://ror.org/00hzs6t60","country_code":"KE","type":"education","lineage":["https://openalex.org/I3132506069"]}],"countries":["KE"],"is_corresponding":false,"raw_author_name":"Samuel Waithira","raw_affiliation_strings":["Department of Physical Sciences, University of Embu, Embu, Kenya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Sciences, University of Embu, Embu, Kenya","institution_ids":["https://openalex.org/I3132506069"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075583844","display_name":"Sharon Kiprotich","orcid":"https://orcid.org/0000-0002-7941-5449","observed_orcids":["https://orcid.org/0000-0002-7941-5449"]},"institutions":[{"id":"https://openalex.org/I3133159679","display_name":"Murang'a University of Technology","ror":"https://ror.org/057k4ej49","country_code":"KE","type":"education","lineage":["https://openalex.org/I3133159679"]}],"countries":["KE"],"is_corresponding":false,"raw_author_name":"Sharon Kiprotich","raw_affiliation_strings":["Department of Physical and Biological Sciences, Murang\u2019a University of Technology, Murang\u2019a, Kenya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical and Biological Sciences, Murang\u2019a University of Technology, Murang\u2019a, Kenya","institution_ids":["https://openalex.org/I3133159679"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062816936","display_name":"Ali Halake Wako","orcid":"https://orcid.org/0000-0003-3443-2605","observed_orcids":["https://orcid.org/0000-0003-3443-2605"]},"institutions":[{"id":"https://openalex.org/I3132506069","display_name":"University of Embu","ror":"https://ror.org/00hzs6t60","country_code":"KE","type":"education","lineage":["https://openalex.org/I3132506069"]}],"countries":["KE"],"is_corresponding":false,"raw_author_name":"Ali H. Wako","raw_affiliation_strings":["Department of Physical Sciences, University of Embu, Embu, Kenya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Sciences, University of Embu, Embu, Kenya","institution_ids":["https://openalex.org/I3132506069"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5051274424","display_name":"George S. Nyamato","orcid":"https://orcid.org/0000-0001-9532-8022","observed_orcids":["https://orcid.org/0000-0001-9532-8022"]},"institutions":[{"id":"https://openalex.org/I3132506069","display_name":"University of Embu","ror":"https://ror.org/00hzs6t60","country_code":"KE","type":"education","lineage":["https://openalex.org/I3132506069"]}],"countries":["KE"],"is_corresponding":false,"raw_author_name":"George S. Nyamato","raw_affiliation_strings":["Department of Physical Sciences, University of Embu, Embu, Kenya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Sciences, University of Embu, Embu, Kenya","institution_ids":["https://openalex.org/I3132506069"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2624,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.32293735,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":"21","issue":null,"first_page":"Manuscript","last_page":"Manuscript"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10097","display_name":"Luminescence Properties of Advanced Materials","score":0.9994999766349792,"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"}},"topics":[{"id":"https://openalex.org/T10097","display_name":"Luminescence Properties of Advanced Materials","score":0.9994999766349792,"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/T11216","display_name":"Radiation Detection and Scintillator Technologies","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"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/T11127","display_name":"Solid State Laser 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/solution-combustion-synthesis","display_name":"solution combustion synthesis","score":0.7580000162124634},{"id":"https://openalex.org/keywords/synthesis-ph","display_name":"synthesis pH","score":0.671999990940094},{"id":"https://openalex.org/keywords/crystallite-size","display_name":"crystallite size","score":0.824999988079071},{"id":"https://openalex.org/keywords/band-gap","display_name":"band gap","score":0.8090000152587891},{"id":"https://openalex.org/keywords/monoclinic-phase","display_name":"monoclinic phase","score":0.8939999938011169},{"id":"https://openalex.org/keywords/secondary-phases","display_name":"secondary phases","score":0.6370000243186951},{"id":"https://openalex.org/keywords/nanoparticle-agglomeration","display_name":"nanoparticle agglomeration","score":0.7950000166893005},{"id":"https://openalex.org/keywords/lighting-devices","display_name":"lighting devices","score":0.5199999809265137}],"concepts":[{"id":"https://openalex.org/C137637335","wikidata":"https://www.wikidata.org/wiki/Q899604","display_name":"Crystallite","level":2,"score":0.8377270698547363},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6119340062141418},{"id":"https://openalex.org/C113196181","wikidata":"https://www.wikidata.org/wiki/Q485223","display_name":"Analytical Chemistry (journal)","level":2,"score":0.6075669527053833},{"id":"https://openalex.org/C26771246","wikidata":"https://www.wikidata.org/wiki/Q321095","display_name":"Scanning electron microscope","level":2,"score":0.5982401967048645},{"id":"https://openalex.org/C71987851","wikidata":"https://www.wikidata.org/wiki/Q7216430","display_name":"Impurity","level":2,"score":0.5896410942077637},{"id":"https://openalex.org/C61276311","wikidata":"https://www.wikidata.org/wiki/Q624543","display_name":"Monoclinic crystal system","level":3,"score":0.5526894330978394},{"id":"https://openalex.org/C124385694","wikidata":"https://www.wikidata.org/wiki/Q11248330","display_name":"Phosphor","level":2,"score":0.5502637624740601},{"id":"https://openalex.org/C26940781","wikidata":"https://www.wikidata.org/wiki/Q906979","display_name":"Scherrer equation","level":3,"score":0.5120359063148499},{"id":"https://openalex.org/C160892712","wikidata":"https://www.wikidata.org/wiki/Q901559","display_name":"Fourier transform infrared spectroscopy","level":2,"score":0.46929532289505005},{"id":"https://openalex.org/C502696234","wikidata":"https://www.wikidata.org/wiki/Q1396","display_name":"Europium","level":3,"score":0.46298351883888245},{"id":"https://openalex.org/C155672457","wikidata":"https://www.wikidata.org/wiki/Q61231","display_name":"Nanoparticle","level":2,"score":0.45546138286590576},{"id":"https://openalex.org/C148869448","wikidata":"https://www.wikidata.org/wiki/Q184240","display_name":"Luminescence","level":2,"score":0.29446691274642944},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.27971822023391724},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.27106475830078125},{"id":"https://openalex.org/C115624301","wikidata":"https://www.wikidata.org/wiki/Q895901","display_name":"Crystal structure","level":2,"score":0.20272961258888245},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.18832865357398987},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.13149461150169373},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.0949566662311554},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48048/tis.2024.8432","doi":"https://doi.org/10.48048/tis.2024.8432","is_oa":true,"landing_page_url":"https://doi.org/10.48048/tis.2024.8432","pdf_url":null,"source":{"id":"https://openalex.org/S4210171953","display_name":"Trends in Sciences","issn_l":"2774-0226","issn":["2774-0226"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["poland-20"],"host_organization":"https://openalex.org/P4310319383","host_organization_name":"Walailak University","host_organization_lineage":["https://openalex.org/P4310319383"],"host_organization_lineage_names":["Walailak University"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Trends in Sciences","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.48048/tis.2024.8432","doi":"https://doi.org/10.48048/tis.2024.8432","is_oa":true,"landing_page_url":"https://doi.org/10.48048/tis.2024.8432","pdf_url":null,"source":{"id":"https://openalex.org/S4210171953","display_name":"Trends in Sciences","issn_l":"2774-0226","issn":["2774-0226"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["poland-20"],"host_organization":"https://openalex.org/P4310319383","host_organization_name":"Walailak University","host_organization_lineage":["https://openalex.org/P4310319383"],"host_organization_lineage_names":["Walailak University"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Trends in Sciences","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":28,"referenced_works":["https://openalex.org/W1204022983","https://openalex.org/W1924948149","https://openalex.org/W1975673509","https://openalex.org/W2000040538","https://openalex.org/W2025641919","https://openalex.org/W2073679627","https://openalex.org/W2080000740","https://openalex.org/W2092530337","https://openalex.org/W2100114383","https://openalex.org/W2126857474","https://openalex.org/W2323032683","https://openalex.org/W2465948116","https://openalex.org/W2520400302","https://openalex.org/W2526487401","https://openalex.org/W2554617932","https://openalex.org/W2567168129","https://openalex.org/W2590384603","https://openalex.org/W2727305117","https://openalex.org/W2792880346","https://openalex.org/W2891472500","https://openalex.org/W2902386805","https://openalex.org/W2914560220","https://openalex.org/W2969213412","https://openalex.org/W3026697958","https://openalex.org/W3168631488","https://openalex.org/W4200470043","https://openalex.org/W4210409153","https://openalex.org/W4253806928"],"related_works":["https://openalex.org/W4403527472","https://openalex.org/W2080000740","https://openalex.org/W2058935308","https://openalex.org/W2090129710","https://openalex.org/W1991876695","https://openalex.org/W2020915903","https://openalex.org/W2017664303","https://openalex.org/W3023868666","https://openalex.org/W2969801714","https://openalex.org/W2062977514"],"abstract_inverted_index":{"Calcium":[0],"aluminate":[1],"phosphor":[2],"nanomaterials":[3],"co-doped":[4],"with":[5,57,169,195,219,235],"europium":[6],"and":[7,22,65,110,215,221],"dysprosium,":[8],"(CaAl2O4:":[9],"Eu2+,":[10,232],"Dy3+)":[11],"were":[12,25,152,213],"prepared":[13],"using":[14,154],"a":[15,99,170,226],"facile":[16],"solution":[17],"combustion":[18,51],"technique.":[19],"The":[20,27,43,72,116,145,174,223],"structural":[21],"optical":[23],"properties":[24],"investigated.":[26],"X-ray":[28],"diffraction":[29,117],"(XRD)":[30],"results":[31,52],"confirmed":[32],"the":[33,36,41,48,54,76,94,104,108,120,129,133,149,155,166,182,191,236,241],"presence":[34,77],"of":[35,53,60,69,78,101,119,148,176],"monoclinic":[37],"phase":[38,81,87],"in":[39,93,103,165,172,181,198,247],"all":[40,128,211],"samples.":[42],"Fourier-transform":[44],"infrared":[45],"analysis":[46],"gave":[47],"expected":[49],"chemical":[50],"final":[55],"product":[56],"few":[58],"traces":[59],"Ca3Al2O6":[61],"impurities":[62],"at":[63,82,136],"low":[64,83],"very":[66],"high":[67],"Potential":[68],"Hydrogen":[70],"(pH).":[71],"XRD":[73],"patterns":[74],"showed":[75,209],"an":[79,196],"impurity":[80,86],"pH.":[84,173],"This":[85],"was":[88,159,163,178,187],"caused":[89],"by":[90],"preferential":[91],"precipitation":[92],"starting":[95],"mixture":[96,106],"due":[97],"to":[98,124,142,202,229],"lack":[100],"homogeneity":[102],"precursor":[105],"between":[107],"urea":[109],"metallic":[111],"ions":[112],"hence":[113],"poor":[114],"combustion.":[115],"angles":[118],"major":[121],"peaks":[122],"shifted":[123,141],"lower":[125],"2\u03b8":[126],"for":[127,132,245],"samples":[130,151,212],"except":[131],"sample":[134,244],"synthesized":[135],"pH":[137,177,199,239],"=":[138],"3.4":[139],"which":[140],"higher":[143],"2\u03b8.":[144],"crystallite":[146,167],"sizes":[147,168],"as-prepared":[150],"determined":[153],"Debye-Scherrer":[156],"equation.":[157],"It":[158,186],"noted":[160,189],"that":[161,190,210],"there":[162],"variation":[164],"change":[171],"effect":[175],"also":[179,188],"observed":[180],"Ultraviolet-Visible":[183],"(UV-Vis)":[184],"studies.":[185],"band":[192],"gap":[193],"increased":[194],"increase":[197],"from":[200],"2.9":[201],"4.5.":[203],"Scanning":[204],"electron":[205],"microscope":[206],"(SEM)":[207],"micrographs":[208],"agglomerated":[214],"had":[216],"irregular":[217],"shapes":[218],"pores":[220],"cracks.":[222],"study":[224],"provides":[225],"simple":[227],"route":[228],"synthesize":[230],"CaAl2O4:":[231],"Dy3+":[233],"phosphors":[234],"optimum":[237],"synthesis":[238],"producing":[240],"most":[242],"crystalline":[243],"application":[246],"lighting":[248],"devices.":[249]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2024-07-27T00:00:00"}
