Engineering of dendritic dopant-free hole transport molecules: enabling ultrahigh fill factor in perovskite solar cells with optimized dendron construction
DC Field | Value | Language |
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dc.contributor.author | Chen, Wei | - |
dc.contributor.author | Wang, Yang | - |
dc.contributor.author | Liu, Bin | - |
dc.contributor.author | Gao, Yajun | - |
dc.contributor.author | Wu, Ziang | - |
dc.contributor.author | Shi, Yongqiang | - |
dc.contributor.author | Tang, Yumin | - |
dc.contributor.author | Yang, Kun | - |
dc.contributor.author | Zhang, Yujie | - |
dc.contributor.author | Sun, Weipeng | - |
dc.contributor.author | Feng, Xiyuan | - |
dc.contributor.author | Laquai, Frederic | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Djurisic, Aleksandra B. | - |
dc.contributor.author | Guo, Xugang | - |
dc.contributor.author | He, Zhubing | - |
dc.date.accessioned | 2021-08-30T04:33:22Z | - |
dc.date.available | 2021-08-30T04:33:22Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2021-01 | - |
dc.identifier.issn | 1674-7291 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/50211 | - |
dc.description.abstract | Developing dopant-free hole-transporting materials (HTMs) for high-performance perovskite solar cells (PVSCs) has been a very active research topic in recent years since HTMs play a critical role in optimizing interfacial charge carrier kinetics and in turn determining device performance. Here, a novel dendritic engineering strategy is first utilized to design HTMs with a D-A type molecular framework, and diphenylamine and/or carbazole is selected as the building block for constructing dendrons. All HTMs show good thermal stability and excellent film morphology, and the key optoelectronic properties could be fine-tuned by varying the dendron structure. Among them, MPA-Cz-BTI and MCz-Cz-BTI exhibit an improved interfacial contact with the perovskite active layer, and non-radiative recombination loss and charge transport loss can be effectively suppressed. Consequently, high power conversion efficiencies (PCEs) of 20.8% and 21.35% are achieved for MPA-Cz-BTI and MCz-Cz-BTI based devices, respectively, accompanied by excellent long-term storage stability. More encouragingly, ultrahigh fill factors of 85.2% and 83.5% are recorded for both devices, which are among the highest values reported to date. This work demonstrates the great potential of dendritic materials as a new type of dopant-free HTMs for high-performance PVSCs with excellent FF. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | SCIENCE PRESS | - |
dc.subject | LIGHT-EMITTING-DIODES | - |
dc.subject | EFFICIENT | - |
dc.subject | PERFORMANCE | - |
dc.subject | DENDRIMERS | - |
dc.title | Engineering of dendritic dopant-free hole transport molecules: enabling ultrahigh fill factor in perovskite solar cells with optimized dendron construction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1007/s11426-020-9857-1 | - |
dc.identifier.scopusid | 2-s2.0-85092619306 | - |
dc.identifier.wosid | 000578954100001 | - |
dc.identifier.bibliographicCitation | SCIENCE CHINA-CHEMISTRY, v.64, no.1, pp.41 - 51 | - |
dc.relation.isPartOf | SCIENCE CHINA-CHEMISTRY | - |
dc.citation.title | SCIENCE CHINA-CHEMISTRY | - |
dc.citation.volume | 64 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 41 | - |
dc.citation.endPage | 51 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | DENDRIMERS | - |
dc.subject.keywordAuthor | dendritic molecules | - |
dc.subject.keywordAuthor | hole-transporting materials | - |
dc.subject.keywordAuthor | dopant-free | - |
dc.subject.keywordAuthor | ultrahigh fill factor | - |
dc.subject.keywordAuthor | perovskite solar cells | - |
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