Fluorenyl Indoline as an Efficient Electron Donor for Concerted Companion Dyes: Enhanced Light-Harvesting and Photocurrent

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Search: WFRF:(Xie Yongshu) > Fluorenyl Indoline ...

Details
MARC

Chen, YingyingEast China Univ Sci & Technol, Peoples R China; East China Univ Sci & Technol, Peoples R China (author)

Fluorenyl Indoline as an Efficient Electron Donor for Concerted Companion Dyes: Enhanced Light-Harvesting and Photocurrent

Article/chapterEnglish2021

Publisher, publication year, extent ...

2021-10-12
AMER CHEMICAL SOC,2021
printrdacarrier

Numbers

LIBRIS-ID:oai:DiVA.org:liu-181499
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-181499URI
https://doi.org/10.1021/acsami.1c12448DOI

Supplementary language notes

Language:English
Summary in:English

Part of subdatabase

SwePubSwePub

Classification

Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

Notes

Funding Agencies|NSFCNational Natural Science Foundation of China (NSFC) [21772041, 21971063, 22075077]; Program of Shanghai Academic Research Leader [20XD1401400]; Natural Science Foundation of ShanghaiNatural Science Foundation of Shanghai [20ZR1414100]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [222201717003]; Swedish Research CouncilSwedish Research CouncilEuropean Commission [2018-05973]
Concerted companion dyes (CC dyes) like XW61 have been demonstrated to be an effective platform for developing efficient DSSCs. However, the moderated phenothiazine-based electron donor in XW61 results in unsatisfactory J(sc). To address this problem, a stronger fluorenyl indoline-based electron donor has been used to construct porphyrin dye XW68 and organic dyes Y1-Y2. The stronger electron-donating character of the fluorenyl indoline unit leads to an enhanced J(sc) value (20.48 mA.cm(-2)) for the individual dye XW68. On this basis, CC dyes XW69-XW70-C8 have been designed and synthesized by combining the frameworks of Y1 and Y2 with XW68. The complementary absorption characters of the porphyrin and the organic dye moieties lead to panchromatic absorption with a strong light-harvesting capability from 350 to 700 nm and the onset wavelength extended to ca. 840 nm in the IPCE curves. As a result, excellent J(sc) values have been achieved (>22 mA.cm(-2)). In addition to the advantages of high J(sc), bulky octyl groups have been introduced into the donor of XW70-C8 to reduce dye aggregation and suppress charge recombination. Finally, a highest PCE of 11.1% with a satisfactory J(sc) (22.25 mA.cm(-2)) and an enhanced V-oc (750 mV) has been achieved upon coadsorption of XW70-C8 with CDCA. In addition, the CC dye XW70-C8-based solar cells exhibit excellent long-term photostability. These results provide an effective method for rationally improving the photovoltaic behavior, especially the J(sc) of CC dyes, by introducing strong electron donor moieties with suitable substituents.

Subject headings and genre

NATURVETENSKAP Kemi Annan kemi hsv//swe
NATURAL SCIENCES Chemical Sciences Other Chemistry Topics hsv//eng
porphyrin; dye-sensitized solar cells; concerted companion dyes; indoline; coadsorption

Added entries (persons, corporate bodies, meetings, titles ...)

Tang, YunyuChinese Acad Fishery Sci, Peoples R China (author)
Zou, JiazhiEast China Univ Sci & Technol, Peoples R China; East China Univ Sci & Technol, Peoples R China (author)
Zeng, KaiwenEast China Univ Sci & Technol, Peoples R China; East China Univ Sci & Technol, Peoples R China (author)
Baryshnikov, GlibLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)gliba58 (author)
Li, ChengjieEast China Univ Sci & Technol, Peoples R China; East China Univ Sci & Technol, Peoples R China (author)
Xie, YongshuEast China Univ Sci & Technol, Peoples R China; East China Univ Sci & Technol, Peoples R China (author)
East China Univ Sci & Technol, Peoples R China; East China Univ Sci & Technol, Peoples R ChinaChinese Acad Fishery Sci, Peoples R China (creator_code:org_t)

Related titles

In:ACS Applied Materials and Interfaces: AMER CHEMICAL SOC13:42, s. 49828-498391944-82441944-8252

Internet link

Find in a library

ACS Applied Materials and Interfaces (Search for host publication in LIBRIS)

To the university's database

Find more in SwePub

By the author/editor: Chen, Yingying; Tang, Yunyu; Zou, Jiazhi; Zeng, Kaiwen; Baryshnikov, Gli ...; Li, Chengjie; show more...; Xie, Yongshu; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Other Chemistry ...

Articles in the publication: ACS Applied Mate ...

By the university: Linköping University

Search outside SwePub

Extend your search to:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se