Fluorinated carbon nanotubes as nonvolatile additive to the active layer of polymer/fullerene solar cells

Fluorinated carbon nanotubes as nonvolatile additive to the active layer of polymer/fullerene solar cells Full article

Journal

Fullerenes, Nanotubes and Carbon Nanostructures
ISSN: 1536-4046

Output data

Year: 2023, Volume: 31, Number: 5, Pages: 464-473 Pages count : 10 DOI: 10.1080/1536383x.2023.2179618

Tags

Organic photovoltaic sfunctionalized carbon nanotubes dispergation microscopy composite

Authors

Kobeleva E.S. ¹ , Uvarov M.N. ¹ , Kravets N.V. ¹ , Ponomarev S.A. ² , Gurova O.A. ³ , Okotrub A.V. ³ , Kazantzev M.S. ⁴ , Degtyarenko K.M. ⁵ , Kulik L.V. ¹

Affiliations

1	Voevodsky Institute of Chemical Kinetics and Combustion, SB RAS
2	Rzhanov Institute of Semiconductor Physics Siberian Branch of Russian Academy of Sciences
3	Nikolaev Institute of Inorganic Chemistry of the Siberian Branch of the RAS
4	N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of Siberian Branch of Russian Academy of Sciences
5	National Research Tomsk State University

Highly dispersed fluorinated SWCNTs of submicron length were prepared, characterized and tested as nonvolatile additive to the active layer of polymer/fullerene organic solar cells. Two types of initial SWCNT materials – TUBALL® (OCSiAl) and Super purified plasma tubes (Nanointegris Inc.) – were used. The absence of big CNT aggregates was revealed by atomic force microscopy. The absence of metallic SWCNTs is confirmed by optical spectra of fluorinated SWCNT dispersions. Reproducible increase of the main performance parameters of solar cells (short circuit current, open circuit voltage, fill factor and power conversion efficiency) was obtained upon admixing a small amount of fluorinated SWCNTs (less than 1% weight) into the polymer/fullerene active layer, with either P3HT or PCDTBT donor and either PC60BM or PC70BM acceptor for both direct and inverted device architectures. Since effective charge mobility did not change upon fluorinated SWCNT admixture, the improvement of solar cell performance is not related to SWCNT-induced modification of the electronic structure of the active layer components or charge transfer via fluorinated SWCNTs. Presumably, the origin of this improvements is geometric optimization of the active layer morphology (improving connectivity of donor and acceptor domains) by fluorinated SWCNTs due to their high aspect ratio.

Kobeleva E.S. , Uvarov M.N. , Kravets N.V. , Ponomarev S.A. , Gurova O.A. , Okotrub A.V. , Kazantzev M.S. , Degtyarenko K.M. , Kulik L.V.
Fluorinated carbon nanotubes as nonvolatile additive to the active layer of polymer/fullerene solar cells
Fullerenes, Nanotubes and Carbon Nanostructures. 2023. V.31. N5. P.464-473. DOI: 10.1080/1536383x.2023.2179618 WOS Scopus РИНЦ

Submitted:	Oct 27, 2022
Published online:	Feb 23, 2023

Web of science	WOS:000939836600001
Scopus	2-s2.0-85148958370
Elibrary	59850411
OpenAlex	W4322009229