File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

석상일

Seok, Sang Il
Laboratory for Energy Harvesting Materials and Systems
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Full metadata record

DC Field Value Language
dc.citation.number 33 -
dc.citation.startPage 2200480 -
dc.citation.title ADVANCED ENERGY MATERIALS -
dc.citation.volume 12 -
dc.contributor.author Nie, Riming -
dc.contributor.author Chu, Weicun -
dc.contributor.author Li, Zhongping -
dc.contributor.author Li, He -
dc.contributor.author Chen, Shanshan -
dc.contributor.author Chen, Yaqing -
dc.contributor.author Zhang, Zhuhua -
dc.contributor.author Liu, Xiaoming -
dc.contributor.author Guo, Wanlin -
dc.contributor.author Seok, Sang Il -
dc.date.accessioned 2023-12-21T13:42:18Z -
dc.date.available 2023-12-21T13:42:18Z -
dc.date.created 2022-08-05 -
dc.date.issued 2022-09 -
dc.description.abstract The power conversion efficiency (PCE) of perovskite solar cells (PSCs) has rapidly increased over the past 10 years. However, along with further efficiency improvements, it is necessary to improve the long-term stability of perovskite materials, which limits the commercialization of PSCs. Therefore, it is urgent to find ways to simultaneously suppress charge recombination and degradation of perovskite materials. Here, two covalent organic frameworks (COFs) are synthesized by reacting thieno[3,2-b]thiophene-2,5-dicarbaldehyde (TTDA) with 1,3,5-tris(4-aminophenyl)benzene (TAPB) or 2,4,6-tris(4-aminophenyl)-1,3,5-triazine (TTA). The addition of these two COFs to the perovskite layer allows for more efficient charge separation through spatially separated frontier orbitals, and can also inhibit the degradation of the FAPbI(3) layer and the formation of delta-FAPbI(3). The PSCs with TTDA-TTA-COF exhibit higher efficiency and open-circuit voltage than those with TTDA-TAPB-COF. This is attributed to the better crystallization of perovskites induced by stronger well-conjugated properties and pi-pi interactions in TTDA-TTA-COF. The champion PSC with TTDA-TTA-COF exhibits a PCE of 23.35% and excellent long-term stability. To the best of one's knowledge, this is the highest efficiency among PSCs fabricated using crystalline organic frameworks as additives. This work provides a new route to fabricate efficient and stable PSCs by incorporating proper COFs. -
dc.identifier.bibliographicCitation ADVANCED ENERGY MATERIALS, v.12, no.33, pp.2200480 -
dc.identifier.doi 10.1002/aenm.202200480 -
dc.identifier.issn 1614-6832 -
dc.identifier.scopusid 2-s2.0-85134233412 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/59066 -
dc.identifier.url https://onlinelibrary.wiley.com/doi/10.1002/aenm.202200480 -
dc.identifier.wosid 000827864200001 -
dc.language 영어 -
dc.publisher WILEY-V C H VERLAG GMBH -
dc.title Simultaneously Suppressing Charge Recombination and Decomposition of Perovskite Solar Cells by Conjugated Covalent Organic Frameworks -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter -
dc.relation.journalResearchArea Chemistry; Energy & Fuels; Materials Science; Physics -
dc.type.docType Article; Early Access -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor better crystallization -
dc.subject.keywordAuthor covalent organic frameworks -
dc.subject.keywordAuthor humidity and thermal stabilities -
dc.subject.keywordAuthor perovskite solar cells -
dc.subject.keywordPlus EFFICIENT -
dc.subject.keywordPlus DYNAMICS -

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.