Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2987685356', 'doi': 'https://doi.org/10.1016/j.jlumin.2019.116846', 'title': 'The one-pot synthesis of homoleptic phenylphthalazine iridium(III) complexes and their application in high efficiency OLEDs', 'display_name': 'The one-pot synthesis of homoleptic phenylphthalazine iridium(III) complexes and their application in high efficiency OLEDs', 'publication_year': 2019, 'publication_date': '2019-11-04', 'ids': {'openalex': 'https://openalex.org/W2987685356', 'doi': 'https://doi.org/10.1016/j.jlumin.2019.116846', 'mag': '2987685356'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/j.jlumin.2019.116846', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S188673600', 'display_name': 'Journal of Luminescence', 'issn_l': '0022-2313', 'issn': ['0022-2313', '1872-7883'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5058072230', 'display_name': 'Yuanyuan Hu', 'orcid': 'https://orcid.org/0000-0001-8511-1401'}, 'institutions': [{'id': 'https://openalex.org/I92178344', 'display_name': 'Anhui University of Technology', 'ror': 'https://ror.org/02qdtrq21', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I92178344']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Yuan-Yuan Hu', 'raw_affiliation_strings': ['Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China', 'institution_ids': ['https://openalex.org/I92178344']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5041306437', 'display_name': 'Wei Luo', 'orcid': 'https://orcid.org/0000-0001-6126-899X'}, 'institutions': [{'id': 'https://openalex.org/I3923682', 'display_name': 'Soochow University', 'ror': 'https://ror.org/05t8y2r12', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I3923682']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Wei Luo', 'raw_affiliation_strings': ['Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China'], 'affiliations': [{'raw_affiliation_string': 'Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China', 'institution_ids': ['https://openalex.org/I3923682']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5010823299', 'display_name': 'Cheng-Gui Hu', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I92178344', 'display_name': 'Anhui University of Technology', 'ror': 'https://ror.org/02qdtrq21', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I92178344']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Cheng-Gui Hu', 'raw_affiliation_strings': ['Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China', 'institution_ids': ['https://openalex.org/I92178344']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5100322555', 'display_name': 'Yan Wang', 'orcid': 'https://orcid.org/0000-0001-9417-0550'}, 'institutions': [{'id': 'https://openalex.org/I92178344', 'display_name': 'Anhui University of Technology', 'ror': 'https://ror.org/02qdtrq21', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I92178344']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Yan Wang', 'raw_affiliation_strings': ['Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China', 'institution_ids': ['https://openalex.org/I92178344']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5064704518', 'display_name': 'Bihai Tong', 'orcid': 'https://orcid.org/0000-0002-1636-3864'}, 'institutions': [{'id': 'https://openalex.org/I92178344', 'display_name': 'Anhui University of Technology', 'ror': 'https://ror.org/02qdtrq21', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I92178344']}], 'countries': ['CN'], 'is_corresponding': True, 'raw_author_name': 'Bi-Hai Tong', 'raw_affiliation_strings': ['Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China', 'institution_ids': ['https://openalex.org/I92178344']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5037046979', 'display_name': 'Man‐Keung Fung', 'orcid': 'https://orcid.org/0000-0003-3447-9673'}, 'institutions': [{'id': 'https://openalex.org/I3923682', 'display_name': 'Soochow University', 'ror': 'https://ror.org/05t8y2r12', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I3923682']}], 'countries': ['CN'], 'is_corresponding': True, 'raw_author_name': 'Man-Keung Fung', 'raw_affiliation_strings': ['Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China'], 'affiliations': [{'raw_affiliation_string': 'Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China', 'institution_ids': ['https://openalex.org/I3923682']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5018147854', 'display_name': 'Yongpan Tian', 'orcid': 'https://orcid.org/0000-0003-0904-3966'}, 'institutions': [{'id': 'https://openalex.org/I92178344', 'display_name': 'Anhui University of Technology', 'ror': 'https://ror.org/02qdtrq21', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I92178344']}], 'countries': ['CN'], 'is_corresponding': True, 'raw_author_name': 'Yong-Pan Tian', 'raw_affiliation_strings': ['Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China', 'institution_ids': ['https://openalex.org/I92178344']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5041938820', 'display_name': 'Qian‐Feng Zhang', 'orcid': 'https://orcid.org/0000-0003-0512-8532'}, 'institutions': [{'id': 'https://openalex.org/I92178344', 'display_name': 'Anhui University of Technology', 'ror': 'https://ror.org/02qdtrq21', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I92178344']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Qian-Feng Zhang', 'raw_affiliation_strings': ['Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China', 'institution_ids': ['https://openalex.org/I92178344']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': ['https://openalex.org/A5064704518', 'https://openalex.org/A5037046979', 'https://openalex.org/A5018147854'], 'corresponding_institution_ids': ['https://openalex.org/I92178344', 'https://openalex.org/I3923682', 'https://openalex.org/I92178344'], 'apc_list': {'value': 2530, 'currency': 'USD', 'value_usd': 2530, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 0.902, 'has_fulltext': False, 'cited_by_count': 14, 'citation_normalized_percentile': {'value': 0.999983, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 89, 'max': 90}, 'biblio': {'volume': '219', 'issue': None, 'first_page': '116846', 'last_page': '116846'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10611', 'display_name': 'Organic Light-Emitting Diodes (OLEDs)', 'score': 1.0, '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'}}, 'topics': [{'id': 'https://openalex.org/T10611', 'display_name': 'Organic Light-Emitting Diodes (OLEDs)', 'score': 1.0, '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/T10612', 'display_name': 'Molecular Magnetism and Spintronics', 'score': 0.9957, '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/T11279', 'display_name': 'Lanthanide Luminescence in Biomedical Applications', 'score': 0.9927, '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/homoleptic', 'display_name': 'Homoleptic', 'score': 0.9860177}, {'id': 'https://openalex.org/keywords/quantum-efficiency', 'display_name': 'Quantum efficiency', 'score': 0.8040419}, {'id': 'https://openalex.org/keywords/flexible-oled-technology', 'display_name': 'Flexible OLED Technology', 'score': 0.57415}, {'id': 'https://openalex.org/keywords/organic-light-emitting-diodes', 'display_name': 'Organic Light-Emitting Diodes', 'score': 0.542699}, {'id': 'https://openalex.org/keywords/luminescent-hybrid-materials', 'display_name': 'Luminescent Hybrid Materials', 'score': 0.541912}, {'id': 'https://openalex.org/keywords/phosphorescent-materials', 'display_name': 'Phosphorescent Materials', 'score': 0.531766}, {'id': 'https://openalex.org/keywords/electroluminescence', 'display_name': 'Electroluminescence', 'score': 0.517123}, {'id': 'https://openalex.org/keywords/thermal-stability', 'display_name': 'Thermal stability', 'score': 0.48808444}], 'concepts': [{'id': 'https://openalex.org/C2781083472', 'wikidata': 'https://www.wikidata.org/wiki/Q5891406', 'display_name': 'Homoleptic', 'level': 3, 'score': 0.9860177}, {'id': 'https://openalex.org/C528581852', 'wikidata': 'https://www.wikidata.org/wiki/Q877', 'display_name': 'Iridium', 'level': 3, 'score': 0.96972466}, {'id': 'https://openalex.org/C150759737', 'wikidata': 'https://www.wikidata.org/wiki/Q209593', 'display_name': 'OLED', 'level': 3, 'score': 0.80973625}, {'id': 'https://openalex.org/C205507967', 'wikidata': 'https://www.wikidata.org/wiki/Q900625', 'display_name': 'Quantum efficiency', 'level': 2, 'score': 0.8040419}, {'id': 'https://openalex.org/C85080765', 'wikidata': 'https://www.wikidata.org/wiki/Q614893', 'display_name': 'Photoluminescence', 'level': 2, 'score': 0.6549275}, {'id': 'https://openalex.org/C59061564', 'wikidata': 'https://www.wikidata.org/wiki/Q7783071', 'display_name': 'Thermal stability', 'level': 2, 'score': 0.48808444}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.4535665}, {'id': 'https://openalex.org/C152365726', 'wikidata': 'https://www.wikidata.org/wiki/Q1048589', 'display_name': 'Density functional theory', 'level': 2, 'score': 0.44289085}, {'id': 'https://openalex.org/C192562407', 'wikidata': 'https://www.wikidata.org/wiki/Q228736', 'display_name': 'Materials science', 'level': 0, 'score': 0.42072648}, {'id': 'https://openalex.org/C75473681', 'wikidata': 'https://www.wikidata.org/wiki/Q188651', 'display_name': 'Photochemistry', 'level': 1, 'score': 0.37811887}, {'id': 'https://openalex.org/C49040817', 'wikidata': 'https://www.wikidata.org/wiki/Q193091', 'display_name': 'Optoelectronics', 'level': 1, 'score': 0.30019754}, {'id': 'https://openalex.org/C171250308', 'wikidata': 'https://www.wikidata.org/wiki/Q11468', 'display_name': 'Nanotechnology', 'level': 1, 'score': 0.15172204}, {'id': 'https://openalex.org/C147597530', 'wikidata': 'https://www.wikidata.org/wiki/Q369472', 'display_name': 'Computational chemistry', 'level': 1, 'score': 0.14843255}, {'id': 'https://openalex.org/C161790260', 'wikidata': 'https://www.wikidata.org/wiki/Q82264', 'display_name': 'Catalysis', 'level': 2, 'score': 0.14452597}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.08764997}, {'id': 'https://openalex.org/C544153396', 'wikidata': 'https://www.wikidata.org/wiki/Q11426', 'display_name': 'Metal', 'level': 2, 'score': 0.07122946}, {'id': 'https://openalex.org/C2779227376', 'wikidata': 'https://www.wikidata.org/wiki/Q6505497', 'display_name': 'Layer (electronics)', 'level': 2, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/j.jlumin.2019.116846', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S188673600', 'display_name': 'Journal of Luminescence', 'issn_l': '0022-2313', 'issn': ['0022-2313', '1872-7883'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/7', 'score': 0.7, 'display_name': 'Affordable and clean energy'}], 'grants': [{'funder': 'https://openalex.org/F4320321001', 'funder_display_name': 'National Natural Science Foundation of China', 'award_id': '21572001'}, {'funder': 'https://openalex.org/F4320321001', 'funder_display_name': 'National Natural Science Foundation of China', 'award_id': '61875144'}, {'funder': 'https://openalex.org/F4320321001', 'funder_display_name': 'National Natural Science Foundation of China', 'award_id': '51704011'}], 'datasets': ['https://openalex.org/W4397644675', 'https://openalex.org/W4397932371', 'https://openalex.org/W4398046211'], 'versions': [], 'referenced_works_count': 42, 'referenced_works': ['https://openalex.org/W1966182479', 'https://openalex.org/W1966662209', 'https://openalex.org/W1989748246', 'https://openalex.org/W1997257819', 'https://openalex.org/W1997539242', 'https://openalex.org/W2002469822', 'https://openalex.org/W2016489950', 'https://openalex.org/W2020228270', 'https://openalex.org/W2022573775', 'https://openalex.org/W2023271753', 'https://openalex.org/W2029667189', 'https://openalex.org/W2030020262', 'https://openalex.org/W2034150875', 'https://openalex.org/W2041988166', 'https://openalex.org/W2044490585', 'https://openalex.org/W2045358690', 'https://openalex.org/W2050437239', 'https://openalex.org/W2052773162', 'https://openalex.org/W2066774243', 'https://openalex.org/W2068617439', 'https://openalex.org/W2101114667', 'https://openalex.org/W2106997539', 'https://openalex.org/W2120436453', 'https://openalex.org/W2132525235', 'https://openalex.org/W2136596077', 'https://openalex.org/W2143981217', 'https://openalex.org/W2158422033', 'https://openalex.org/W2281888799', 'https://openalex.org/W2326632785', 'https://openalex.org/W2332786077', 'https://openalex.org/W2559500949', 'https://openalex.org/W2587957555', 'https://openalex.org/W2615928605', 'https://openalex.org/W2755388098', 'https://openalex.org/W2763218356', 'https://openalex.org/W2772457965', 'https://openalex.org/W2791901851', 'https://openalex.org/W2884431307', 'https://openalex.org/W2897661529', 'https://openalex.org/W2913301973', 'https://openalex.org/W4249293795', 'https://openalex.org/W4250836829'], 'related_works': ['https://openalex.org/W2987685356', 'https://openalex.org/W2961543086', 'https://openalex.org/W2332283383', 'https://openalex.org/W2089483683', 'https://openalex.org/W2085867773', 'https://openalex.org/W2029670155', 'https://openalex.org/W2025905442', 'https://openalex.org/W2011445533', 'https://openalex.org/W2005781451', 'https://openalex.org/W1975494321'], 'abstract_inverted_index': {'A': [0], 'series': [1], 'of': [2, 41, 49, 60, 69, 107, 117, 125, 128], 'homoleptic': [3, 139], 'cyclometalated': [4], 'iridium': [5, 71, 141], '(III)': [6, 72, 142], 'complexes': [7, 28, 52, 73, 81, 143], 'bearing': [8], 'a': [9, 16, 98], '1-phenylphthalazine': [10], 'framework': [11], 'have': [12, 144], 'been': [13], 'synthesized': [14], 'with': [15, 38, 57], 'facile': [17], 'one-pot': [18], 'method': [19], 'and': [20, 44, 66, 102, 111], 'characterized': [21], 'by': [22, 76], 'X-ray': [23], 'single': [24], 'crystal': [25], 'diffraction.': [26], 'All': [27], 'exhibited': [29], 'orange': [30], 'or': [31], 'red': [32, 127], 'emission': [33], 'peaks': [34], 'at': [35], '583–623': [36], 'nm': [37], 'short': [39], 'lifetimes': [40], '1.3–2.6': [42], 'μs': [43], 'high': [45, 58], 'photoluminescence': [46], 'quantum': [47, 104], 'yields': [48], '41%–82%.': [50], 'These': [51, 80, 135], 'exhibit': [53], 'good': [54], 'thermal': [55], 'stability': [56], 'Td': [59], '275–394': [61], '°C.': [62], 'The': [63, 92, 114], 'electronic': [64], 'states': [65], 'orbital': [67], 'distributions': [68], 'these': [70], 'were': [74, 82], 'studied': [75], 'density': [77], 'functional': [78], 'theory.': [79], 'used': [83], 'as': [84, 147], 'emissive': [85], 'materials': [86], 'in': [87, 150], 'Organic': [88], 'light-emitting': [89], 'diodes': [90], '(OLEDs).': [91], 'device': [93, 118], 'based': [94, 119], 'on': [95, 120], '2': [96], 'gave': [97], 'peak': [99], 'current': [100], 'efficiency': [101, 105], 'external': [103], '(EQE)': [106], '35.1': [108], 'cd': [109], 'A−1': [110], '21.2%,': [112], 'respectively.': [113], 'color': [115], 'coordinates': [116], '3': [121], 'fully': [122], 'meet': [123], 'that': [124, 138], 'standard': [126], 'the': [129], 'National': [130], 'Television': [131], 'Standards': [132], 'Committee': [133], '(NTSC).': [134], 'results': [136], 'suggest': [137], 'phenylphthalazine': [140], 'potential': [145], 'application': [146], 'efficient': [148], 'emitters': [149], 'OLEDs.': [151]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2987685356', 'counts_by_year': [{'year': 2024, 'cited_by_count': 3}, {'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 4}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 3}], 'updated_date': '2024-09-19T10:31:34.553529', 'created_date': '2019-11-22'}