2014
DOI: 10.1002/adma.201402448
|View full text |Cite
|
Sign up to set email alerts
|

A–D–A‐type S,N‐Heteropentacenes: Next‐Generation Molecular Donor Materials for Efficient Vacuum‐Processed Organic Solar Cells

Abstract: A new class of acceptor-substituted S,N-heteropentacenes is developed for vacuum-processed organic solar cells, providing encouraging power conversion efficiencies of up to 6.5%. Atomic force microscopy (AFM) investigations give a direct correlation between the blend film morphology and the photovoltaic parameters, such as short-circuit current density (JSC ) and fill factor (FF).

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3

Citation Types

1
54
0
1

Year Published

2015
2015
2023
2023

Publication Types

Select...
8
1

Relationship

2
7

Authors

Journals

citations
Cited by 85 publications
(56 citation statements)
references
References 24 publications
1
54
0
1
Order By: Relevance
“…Some authors have addressed the broadening of spectral response using panchromatic absorbers 10 or ternary systems 11 . Absorption spectra have been analysed in terms of the relationship between spectral shape and chemical structure or conformation [12][13][14] , and individual molecules 15 or monomers 16 with high optical extinction have been presented. However, the magnitude of the optical absorption in conjugated polymers has been less well studied and is seldom identified as a design target.…”
Section: Introductionmentioning
confidence: 99%
“…Some authors have addressed the broadening of spectral response using panchromatic absorbers 10 or ternary systems 11 . Absorption spectra have been analysed in terms of the relationship between spectral shape and chemical structure or conformation [12][13][14] , and individual molecules 15 or monomers 16 with high optical extinction have been presented. However, the magnitude of the optical absorption in conjugated polymers has been less well studied and is seldom identified as a design target.…”
Section: Introductionmentioning
confidence: 99%
“…[35] This donor material in conjunction with a fullerene (acceptor) have been implemented in a photovoltaic cell with efficiencies as high as 6.5%, which is a remarkable efficiency for SM-OSCs. [36] Compounds with a similar acceptor-donor-acceptor (A-D-A) backbone have shown great promise as electron donor materials for high efficiency in singlejunction and tandem SM-OSCs.…”
Section: Introductionmentioning
confidence: 99%
“…[6] Mixed five-membered ring heteroacenes consisting of fused thiophene (X = S) and pyrrole units (X = NR), so-called S,N-heteroacenes,a re advantageous over thienoacenes [6] because solubilizing substituents can be attached at the nitrogen atoms.W ithin the series of pure S,N-heteroacenes,dithieno[3,2-b:2',3'-d]pyrrole (DTP) has been known for some time, [7] while different Nalkylated S,N-heteropentacenes SN5 were presented only recently. [8] We pursued as imilar concept and reported acceptor-functionalized S,N-heteropentacenes for application in different types of organic solar cells.T hus,a cceptorsubstituted SN5 derivatives achieved efficiencies of as much as 6.5 %i nv acuum-processed solar cells, [9] up to 4.9 %i n solution-processed solar cells, [10] and up to 10.3 %when used as hole transporters in Perovskite cells. [11] Thetodate longest S,N-heteroacene,h eterohexacene SN6,w as recently presented by our group and showed interesting optoelectronic properties as well as good charge-carrier mobility.…”
mentioning
confidence: 99%