{"id":"https://openalex.org/W4412444784","doi":"https://doi.org/10.1109/access.2025.3589255","title":"Temperature-Dependent Optical Absorption Study of Exciton Binding Energy in Organolead Halide Perovskites","display_name":"Temperature-Dependent Optical Absorption Study of Exciton Binding Energy in Organolead Halide Perovskites","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4412444784","doi":"https://doi.org/10.1109/access.2025.3589255"},"language":"en","primary_location":{"id":"doi:10.1109/access.2025.3589255","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3589255","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2025.3589255","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5013913867","display_name":"Gagik Ayvazyan","orcid":"https://orcid.org/0000-0001-9245-6758"},"institutions":[{"id":"https://openalex.org/I191043459","display_name":"National Polytechnic University of Armenia","ror":"https://ror.org/007b9cn27","country_code":"AM","type":"education","lineage":["https://openalex.org/I191043459"]}],"countries":["AM"],"is_corresponding":true,"raw_author_name":"Gagik Ayvazyan","raw_affiliation_strings":["Optoelectronic Devices Laboratory, National Polytechnic University of Armenia, Yerevan, Armenia","National Polytechnic University of Armenia, 105, Teryan, Yerevan, Armenia"],"raw_orcid":"https://orcid.org/0000-0001-9245-6758","affiliations":[{"raw_affiliation_string":"Optoelectronic Devices Laboratory, National Polytechnic University of Armenia, Yerevan, Armenia","institution_ids":["https://openalex.org/I191043459"]},{"raw_affiliation_string":"National Polytechnic University of Armenia, 105, Teryan, Yerevan, Armenia","institution_ids":["https://openalex.org/I191043459"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091114779","display_name":"Harutyun Dashtoyan","orcid":null},"institutions":[{"id":"https://openalex.org/I191043459","display_name":"National Polytechnic University of Armenia","ror":"https://ror.org/007b9cn27","country_code":"AM","type":"education","lineage":["https://openalex.org/I191043459"]}],"countries":["AM"],"is_corresponding":false,"raw_author_name":"Harutyun Dashtoyan","raw_affiliation_strings":["Optoelectronic Devices Laboratory, National Polytechnic University of Armenia, Yerevan, Armenia","National Polytechnic University of Armenia, 105, Teryan, Yerevan, Armenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Optoelectronic Devices Laboratory, National Polytechnic University of Armenia, Yerevan, Armenia","institution_ids":["https://openalex.org/I191043459"]},{"raw_affiliation_string":"National Polytechnic University of Armenia, 105, Teryan, Yerevan, Armenia","institution_ids":["https://openalex.org/I191043459"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032053604","display_name":"Surik Khudaverdyan","orcid":"https://orcid.org/0009-0001-5999-3399"},"institutions":[{"id":"https://openalex.org/I191043459","display_name":"National Polytechnic University of Armenia","ror":"https://ror.org/007b9cn27","country_code":"AM","type":"education","lineage":["https://openalex.org/I191043459"]}],"countries":["AM"],"is_corresponding":false,"raw_author_name":"Surik Khudaverdyan","raw_affiliation_strings":["Optoelectronic Devices Laboratory, National Polytechnic University of Armenia, Yerevan, Armenia","National Polytechnic University of Armenia, 105, Teryan, Yerevan, Armenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Optoelectronic Devices Laboratory, National Polytechnic University of Armenia, Yerevan, Armenia","institution_ids":["https://openalex.org/I191043459"]},{"raw_affiliation_string":"National Polytechnic University of Armenia, 105, Teryan, Yerevan, Armenia","institution_ids":["https://openalex.org/I191043459"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028771000","display_name":"Lenrik Matevosyan","orcid":"https://orcid.org/0000-0003-2265-3048"},"institutions":[{"id":"https://openalex.org/I4210142314","display_name":"Institute of Radiophysics and Electronics","ror":"https://ror.org/051jgxz75","country_code":"AM","type":"facility","lineage":["https://openalex.org/I4210142314","https://openalex.org/I99064381"]}],"countries":["AM"],"is_corresponding":false,"raw_author_name":"Lenrik Matevosyan","raw_affiliation_strings":["Institute of Radiophysics and Electronics, Ashtarak, Armenia","Institute of Radiophysics and Electronics, 1, Alikhanian Brothers, Ashtarak, Armenia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Radiophysics and Electronics, Ashtarak, Armenia","institution_ids":["https://openalex.org/I4210142314"]},{"raw_affiliation_string":"Institute of Radiophysics and Electronics, 1, Alikhanian Brothers, Ashtarak, Armenia","institution_ids":["https://openalex.org/I4210142314"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5079719888","display_name":"Ashok Vaseashta","orcid":"https://orcid.org/0000-0002-5649-0067"},"institutions":[{"id":"https://openalex.org/I4210088307","display_name":"Water Research Institute","ror":"https://ror.org/0077sb385","country_code":"SK","type":"facility","lineage":["https://openalex.org/I4210088307","https://openalex.org/I4210149671"]}],"countries":["SK"],"is_corresponding":false,"raw_author_name":"Ashok Vaseashta","raw_affiliation_strings":["International Clean Water Institute, Manassas, VA, USA","International Clean Water Institute Manassas, VA, USA"],"raw_orcid":"https://orcid.org/0000-0002-5649-0067","affiliations":[{"raw_affiliation_string":"International Clean Water Institute, Manassas, VA, USA","institution_ids":[]},{"raw_affiliation_string":"International Clean Water Institute Manassas, VA, USA","institution_ids":["https://openalex.org/I4210088307"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5013913867"],"corresponding_institution_ids":["https://openalex.org/I191043459"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.6252,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.71215937,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":98},"biblio":{"volume":"13","issue":null,"first_page":"127142","last_page":"127149"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10247","display_name":"Perovskite Materials and Applications","score":0.9995999932289124,"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"}},"topics":[{"id":"https://openalex.org/T10247","display_name":"Perovskite Materials and Applications","score":0.9995999932289124,"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/T10660","display_name":"Conducting polymers and applications","score":0.9605000019073486,"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/T11315","display_name":"Phase-change materials and chalcogenides","score":0.9284999966621399,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/halide","display_name":"Halide","score":0.8539998531341553},{"id":"https://openalex.org/keywords/exciton","display_name":"Exciton","score":0.7477195858955383},{"id":"https://openalex.org/keywords/absorption","display_name":"Absorption (acoustics)","score":0.6215720772743225},{"id":"https://openalex.org/keywords/binding-energy","display_name":"Binding energy","score":0.5705364942550659},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.45331668853759766},{"id":"https://openalex.org/keywords/optoelectronics","display_name":"Optoelectronics","score":0.4125729203224182},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.3746544122695923},{"id":"https://openalex.org/keywords/chemical-physics","display_name":"Chemical physics","score":0.334603875875473},{"id":"https://openalex.org/keywords/inorganic-chemistry","display_name":"Inorganic chemistry","score":0.32700687646865845},{"id":"https://openalex.org/keywords/atomic-physics","display_name":"Atomic physics","score":0.23983553051948547},{"id":"https://openalex.org/keywords/condensed-matter-physics","display_name":"Condensed matter physics","score":0.21685010194778442},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.16881009936332703}],"concepts":[{"id":"https://openalex.org/C171560689","wikidata":"https://www.wikidata.org/wiki/Q193086","display_name":"Halide","level":2,"score":0.8539998531341553},{"id":"https://openalex.org/C17729963","wikidata":"https://www.wikidata.org/wiki/Q858289","display_name":"Exciton","level":2,"score":0.7477195858955383},{"id":"https://openalex.org/C125287762","wikidata":"https://www.wikidata.org/wiki/Q1758948","display_name":"Absorption (acoustics)","level":2,"score":0.6215720772743225},{"id":"https://openalex.org/C93282013","wikidata":"https://www.wikidata.org/wiki/Q420754","display_name":"Binding energy","level":2,"score":0.5705364942550659},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.45331668853759766},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.4125729203224182},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.3746544122695923},{"id":"https://openalex.org/C159467904","wikidata":"https://www.wikidata.org/wiki/Q2001702","display_name":"Chemical physics","level":1,"score":0.334603875875473},{"id":"https://openalex.org/C179104552","wikidata":"https://www.wikidata.org/wiki/Q11165","display_name":"Inorganic chemistry","level":1,"score":0.32700687646865845},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.23983553051948547},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.21685010194778442},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.16881009936332703},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2025.3589255","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3589255","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:5cf17f9cd9904241a83202969f1b5456","is_oa":true,"landing_page_url":"https://doaj.org/article/5cf17f9cd9904241a83202969f1b5456","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,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 13, Pp 127142-127149 (2025)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2025.3589255","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3589255","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.7699999809265137}],"awards":[{"id":"https://openalex.org/G1703919850","display_name":null,"funder_award_id":"21AG-2B011","funder_id":"https://openalex.org/F4320324101","funder_display_name":"State Committee of Science"}],"funders":[{"id":"https://openalex.org/F4320324101","display_name":"State Committee of Science","ror":"https://ror.org/01ptpr676"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":54,"referenced_works":["https://openalex.org/W1892124152","https://openalex.org/W1908175253","https://openalex.org/W1967379828","https://openalex.org/W1970615651","https://openalex.org/W1978513690","https://openalex.org/W1981069060","https://openalex.org/W2105759630","https://openalex.org/W2132189412","https://openalex.org/W2215801119","https://openalex.org/W2232208415","https://openalex.org/W2320924056","https://openalex.org/W2343899036","https://openalex.org/W2365412281","https://openalex.org/W2417573578","https://openalex.org/W2592403031","https://openalex.org/W2594730280","https://openalex.org/W2731142556","https://openalex.org/W2847347814","https://openalex.org/W2908363109","https://openalex.org/W2961591247","https://openalex.org/W2970051833","https://openalex.org/W2971782071","https://openalex.org/W2990104259","https://openalex.org/W3005652972","https://openalex.org/W3033666203","https://openalex.org/W3049570076","https://openalex.org/W3106592695","https://openalex.org/W3171594103","https://openalex.org/W3206977061","https://openalex.org/W4205660016","https://openalex.org/W4285741308","https://openalex.org/W4307167599","https://openalex.org/W4315488745","https://openalex.org/W4360620334","https://openalex.org/W4379467030","https://openalex.org/W4381125953","https://openalex.org/W4385238291","https://openalex.org/W4387130404","https://openalex.org/W4387877640","https://openalex.org/W4389477497","https://openalex.org/W4390917179","https://openalex.org/W4391734228","https://openalex.org/W4393006744","https://openalex.org/W4393388931","https://openalex.org/W4394845104","https://openalex.org/W4401395111","https://openalex.org/W4402616270","https://openalex.org/W4403474415","https://openalex.org/W4404103069","https://openalex.org/W4404550668","https://openalex.org/W4408404745","https://openalex.org/W4408548832","https://openalex.org/W4408830640","https://openalex.org/W4409249385"],"related_works":["https://openalex.org/W2947034651","https://openalex.org/W2621366597","https://openalex.org/W4206723310","https://openalex.org/W4210554517","https://openalex.org/W1673668233","https://openalex.org/W2017342691","https://openalex.org/W2083565090","https://openalex.org/W2024273737","https://openalex.org/W1988684483","https://openalex.org/W2171489528"],"abstract_inverted_index":{"Organolead":[0],"halide":[1,37],"perovskites":[2,219],"have":[3],"recently":[4],"garnered":[5],"significant":[6],"attention":[7],"for":[8,20,150,189,228],"their":[9,18,229],"potential":[10],"in":[11,156,192,232],"solar":[12,233],"cell":[13],"applications,":[14],"as":[15,17],"well":[16],"promise":[19],"light-emitting":[21],"and":[22,32,78,131],"lasing":[23],"devices.":[24],"In":[25],"this":[26],"study,":[27],"we":[28,66],"investigate":[29],"the":[30,62,68,79,95,100,120,129,157,169,172,177,212],"excitonic":[31,215],"electronic":[33],"properties":[34],"of":[35,141,171,186,217],"mixed":[36],"organolead":[38],"perovskite":[39],"CH<sub":[40],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[41,43,45,47,49,73,86,109,115,202],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">3</sub>NH<sub":[42],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">3</sub>PbCl<sub":[44],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">3</sub>-<sub":[46],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">x</sub>I<sub":[48],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">x</sub>":[50],"layers":[51],"through":[52,191],"temperature-dependent":[53],"optical":[54],"absorption":[55],"spectroscopy.":[56],"By":[57],"analyzing":[58],"spectral":[59],"features":[60],"across":[61],"77\u2013300":[63],"K":[64,167],"range,":[65],"determined":[67],"exciton":[69],"binding":[70],"energy":[71,122,234],"(<italic":[72],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">E<sub>b</sub></i>":[74,116],"\u2248":[75,204],"14":[76],"meV)":[77],"bandgap":[80,158],"energy.":[81],"The":[82,113],"experimentally":[83],"derived":[84],"<italic":[85,114],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">E<sub>b</sub></i>,":[87],"obtained":[88],"from":[89],"absorption-edge":[90],"shifts,":[91],"is":[92,148,206],"nearly":[93],"half":[94],"theoretical":[96,132],"value":[97],"calculated":[98],"using":[99],"Wannier\u2013Mott":[101],"model":[102],"with":[103,138],"a":[104,182],"high-frequency":[105],"dielectric":[106,187,199],"constant":[107],"(\u03b5<sub":[108],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">\u221e</sub>":[110],"=":[111],"6.55).":[112],"values":[117],"close":[118],"to":[119,162],"thermal":[121],"at":[123],"room":[124],"temperature,":[125],"confirmed":[126],"by":[127,196],"both":[128],"experimental":[130],"approaches,":[133],"indicate":[134],"predominantly":[135],"non-excitonic":[136],"behavior,":[137],"approximately":[139],"95%":[140],"excitons":[142],"dissociating":[143],"into":[144],"free":[145],"carriers,":[146],"which":[147],"essential":[149],"high":[151],"photovoltaic":[152],"efficiency.":[153],"A":[154],"discontinuity":[155],"(from":[159],"1.57":[160],"eV":[161],"1.72":[163],"eV)":[164],"near":[165],"150\u2013160":[166],"reflects":[168],"impact":[170],"tetragonal-to-orthorhombic":[173],"phase":[174],"transition":[175],"on":[176],"material\u2019s":[178],"optoelectronic":[179],"properties.":[180],"While":[181],"more":[183],"accurate":[184],"treatment":[185],"screening,":[188],"example":[190],"situ":[193],"studies":[194],"or":[195],"considering":[197],"effective":[198],"constants":[200],"(\u03b5<italic":[201],"xmlns:xlink=\"http://www.w3.org/1999/xlink\"><sub>eff</sub></i>":[203],"10),":[205],"needed,":[207],"our":[208],"results":[209],"quantitatively":[210],"confirm":[211],"weakly":[213],"bound":[214],"character":[216],"mixed-halide":[218],"under":[220],"operational":[221],"conditions.":[222],"These":[223],"findings":[224],"provide":[225],"useful":[226],"insights":[227],"optimized":[230],"design":[231],"applications.":[235]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}
