Imide-functionalized acceptor-acceptor copolymers as efficient electron transport layers for high-performance perovskite solar cells
DC Field | Value | Language |
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dc.contributor.author | Shi, Yongqiang | - |
dc.contributor.author | Chen, Wei | - |
dc.contributor.author | Wu, Ziang | - |
dc.contributor.author | Wang, Yang | - |
dc.contributor.author | Sun, Weipeng | - |
dc.contributor.author | Yang, Kun | - |
dc.contributor.author | Tang, Yumin | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Zhou, Ming | - |
dc.contributor.author | Djurisic, Aleksandra B. | - |
dc.contributor.author | He, Zhubing | - |
dc.contributor.author | Guo, Xugang | - |
dc.date.accessioned | 2021-08-30T19:13:10Z | - |
dc.date.available | 2021-08-30T19:13:10Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-07-21 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/54361 | - |
dc.description.abstract | Electron transport layers (ETLs) are critical for improving device performance and stability of perovskite solar cells (PVSCs). Herein, a distannylated electron-deficient bithiophene imide (BTI-Tin) is synthesized, which enables us to access structurally novel acceptor-acceptor (A-A) type polymers. Polymerizing BTI-Tin with dibrominated naphthalene diimide (NDI-Br) and perylene diimide (PDI-Br) affords two A-A copolymers P(BTI-NDI) and P(BTI-PDI). The all-acceptor backbone yields both low-lying highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels for the polymers, which combined with their high electron mobility render P(BTI-NDI) and P(BTI-PDI) as promising ETLs for perovskite solar cells (PVSCs). When applied as ETLs to replace the conventional [6,6]-phenyl-C-61-butyric acid methyl ester (PC61BM) in planar p-i-n PVSCs, the PC61BM-free devices based on P(BTI-NDI) and P(BTI-PDI) achieve remarkable power conversion efficiencies (PCEs) of 19.5% and 20.8%, respectively, with negligible hysteresis. Such performance is attributed to efficient electron extraction and reduced charge recombination. Moreover, the devices based on P(BTI-NDI) and P(BTI-PDI) ETLs show improved stability compared to the PC61BM based ones due to the higher hydrophobicity of the new ETLs. This work provides important guidelines for designing n-type polymers to replace PC61BM as efficient ETLs for high-performance PVSCs with improved stability. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | FIELD-EFFECT TRANSISTORS | - |
dc.subject | CONJUGATED POLYMERS | - |
dc.subject | LOW-TEMPERATURE | - |
dc.subject | DERIVATIVES | - |
dc.subject | LENGTHS | - |
dc.title | Imide-functionalized acceptor-acceptor copolymers as efficient electron transport layers for high-performance perovskite solar cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1039/d0ta03548c | - |
dc.identifier.scopusid | 2-s2.0-85089485078 | - |
dc.identifier.wosid | 000548452100032 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.8, no.27, pp.13754 - 13762 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 8 | - |
dc.citation.number | 27 | - |
dc.citation.startPage | 13754 | - |
dc.citation.endPage | 13762 | - |
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.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | FIELD-EFFECT TRANSISTORS | - |
dc.subject.keywordPlus | CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | LOW-TEMPERATURE | - |
dc.subject.keywordPlus | DERIVATIVES | - |
dc.subject.keywordPlus | LENGTHS | - |
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