IDIC-4F

CAS Number 2229934-71-6

Low price, high purity IDIC-4F available to buy online

Electron acceptor able to give a device performance efficiency of over 12.1%

IDIC-4F (CAS number 2229934-71-6), a fluorinated analog of IDIC, shows an A-D-A type structure. The structure has an electron-donating fused five-member-ring indaceno[1,2-b:5,6-b′]dithiophene (IDT) core, terminated by two electron-withdrawing units, 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (IC-2F).

All small molecule organic solar cells (SM-OSCs) with H14 as a small molecule donor and IDIC-4F as electron acceptor have an easy to fabricate and simple structure. Such devices have been shown to give a device performance efficiency over 12.1% which is the highest efficiency reported for IDIC-4F-based SM-OSCs.

Device structure: ITO/PEDOT:PSS/H14:IDIC-4F/PDINO/Al [2]

Thickness (nm)	V_OC(V)	J_SC(mA cm^-2)	FF (%)	PCE(%)
85	0.943	18.3	70.2	12.1

Chemical Structure

IDIC-4F, NFA — Chemical structure of IDIC-4f

Literature and Reviews

Di-fluorinated Oligothiophenes for High-Efficiency All-Small-Molecule Organic Solar Cells: Positional Isomeric Effect of Fluorine Substitution on Performance Variations, T. Duan et al., Solar RRL, 4 (3), 2019; doi: 10.1002/solr.201900472.
Precise Control of Phase Separation Enables 12% Efficiency in All Small Molecule Solar Cells, H. Bin et al., Adv. Energy Mater., 2001589 (2020); DOI: 10.1002/aenm.202001589.
As-cast ternary polymer solar cells based on a nonfullerene acceptor and its fluorinated counterpart showing improved efficiency and good thickness tolerance, F. Pan et al., J. Mater. Chem. A, 7, 9798-9806 (2019); doi: 10.1039/C9TA01003C.
Simple non-fused electron acceptors for efficient and stable organic solar cells, Z. Yu et al., Nat Commun 10, 2152 (2019); doi: 10.1038/s41467-019-10098-z.
Deciphering the Role of Fluorination: Morphological Manipulation Prompts Charge Separation and Reduces Carrier Recombination in All‐Small‐Molecule Photovoltaics, H. Tang et al., Solar RRL, 4 (4), 1900528 (2019); doi: 10.1002/solr.201900528.

General Information

CAS Number	2229934-71-6
Chemical Formula	C₆₆H₆₂F₄N₄O₂S₂
Purity	≥99% (¹HNMR)
Full Name	2,2'-((2Z,2'Z)-((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b']dithiophene-2,7-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile
Molecular Weight	1083.35 g/mol
Absorption*	λ_max707 nm (Film)
HOMO / LUMO	HOMO = -6.30 eV, LUMO = -3.82 eV [1]
Solubility	Chloroform, chlorobenzene
Form	Dark purple red powder/crystals
Synonyms	ID4F, ID-4F
Classification / Family	NFAs, n-type non-fullerene electron acceptors, Organic semiconducting materials, Low band-gap small molecule, Small molecular acceptor, Organic photovoltaics, Polymer solar cells, NF-PSCs