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- Publisher Website: 10.1021/acsami.9b17386
- Scopus: eid_2-s2.0-85077093543
- PMID: 31786921
- WOS: WOS:000505626900094
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Article: Side-Chain Engineering of Donor–Acceptor Conjugated Small Molecules As Dopant-Free Hole-Transport Materials for Efficient Normal Planar Perovskite Solar Cells
Title | Side-Chain Engineering of Donor–Acceptor Conjugated Small Molecules As Dopant-Free Hole-Transport Materials for Efficient Normal Planar Perovskite Solar Cells |
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Authors | |
Keywords | side-chain engineering donor−acceptor conjugated small molecules hole-transport materials dopant-free perovskite solar cells |
Issue Date | 2019 |
Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/aamick |
Citation | ACS Applied Materials & Interfaces, 2019, v. 11 n. 51, p. 48556-48563 How to Cite? |
Abstract | Simultaneously improving efficiency and stability, which are particularly crucial factors for the commercialization of perovskite solar cells (PSCs), remains a major challenge. For high-efficiency normal PSCs, the development of stable dopant-free hole-transport materials (HTMs) seems imperative. Here, we developed potential donor–acceptor small molecules (BTTI) as HTMs for normal planar PSCs. Through tailoring its alkyl side-chain length as BTTI-C6, BTTI-C8, and BTTI-C12, our results show that upon shortening the side chain of BTTI, the hole mobility, film-forming capability, and resultant device performance were remarkably improved, with the device conversion efficiencies of 19.69% for BTTI-C6, 18.89% for BTTI-C8, and 17.49% for BTTI-C12. Meanwhile, compared to those made with the routine doped Spiro-OMeTAD, devices based on our dopant-free HTMs exhibited significantly improved stability. This work paves the way to the development of effective dopant-free HTMs for high-performance PSCs. |
Persistent Identifier | http://hdl.handle.net/10722/280380 |
ISSN | 2021 Impact Factor: 10.383 2020 SCImago Journal Rankings: 2.535 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Tu, B | - |
dc.contributor.author | Wang, Y | - |
dc.contributor.author | Chen, W | - |
dc.contributor.author | Liu, B | - |
dc.contributor.author | Feng, X-Y | - |
dc.contributor.author | Zhu, Y-D | - |
dc.contributor.author | Yang, K | - |
dc.contributor.author | Zhang, Z-K | - |
dc.contributor.author | Shi, Y-Q | - |
dc.contributor.author | Guo, X-G | - |
dc.contributor.author | Li, H-F | - |
dc.contributor.author | Tang, Z | - |
dc.contributor.author | Djurisic, AB | - |
dc.contributor.author | He, Z-B | - |
dc.date.accessioned | 2020-02-07T07:40:13Z | - |
dc.date.available | 2020-02-07T07:40:13Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | ACS Applied Materials & Interfaces, 2019, v. 11 n. 51, p. 48556-48563 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/10722/280380 | - |
dc.description.abstract | Simultaneously improving efficiency and stability, which are particularly crucial factors for the commercialization of perovskite solar cells (PSCs), remains a major challenge. For high-efficiency normal PSCs, the development of stable dopant-free hole-transport materials (HTMs) seems imperative. Here, we developed potential donor–acceptor small molecules (BTTI) as HTMs for normal planar PSCs. Through tailoring its alkyl side-chain length as BTTI-C6, BTTI-C8, and BTTI-C12, our results show that upon shortening the side chain of BTTI, the hole mobility, film-forming capability, and resultant device performance were remarkably improved, with the device conversion efficiencies of 19.69% for BTTI-C6, 18.89% for BTTI-C8, and 17.49% for BTTI-C12. Meanwhile, compared to those made with the routine doped Spiro-OMeTAD, devices based on our dopant-free HTMs exhibited significantly improved stability. This work paves the way to the development of effective dopant-free HTMs for high-performance PSCs. | - |
dc.language | eng | - |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/aamick | - |
dc.relation.ispartof | ACS Applied Materials & Interfaces | - |
dc.rights | This document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html]. | - |
dc.subject | side-chain engineering | - |
dc.subject | donor−acceptor conjugated small molecules | - |
dc.subject | hole-transport materials | - |
dc.subject | dopant-free | - |
dc.subject | perovskite solar cells | - |
dc.title | Side-Chain Engineering of Donor–Acceptor Conjugated Small Molecules As Dopant-Free Hole-Transport Materials for Efficient Normal Planar Perovskite Solar Cells | - |
dc.type | Article | - |
dc.identifier.email | Djurisic, AB: dalek@hku.hk | - |
dc.identifier.authority | Djurisic, AB=rp00690 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1021/acsami.9b17386 | - |
dc.identifier.pmid | 31786921 | - |
dc.identifier.scopus | eid_2-s2.0-85077093543 | - |
dc.identifier.hkuros | 309057 | - |
dc.identifier.volume | 11 | - |
dc.identifier.issue | 51 | - |
dc.identifier.spage | 48556 | - |
dc.identifier.epage | 48563 | - |
dc.identifier.isi | WOS:000505626900094 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 1944-8244 | - |