ITIC-2Cl, 3,9-bis(2-methylene-((3-(1,1-dicyanomethylene)-6,7-dichloro)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]dithiophene
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:


Band gap: 1.48 eV





Orbital energy

HOMO -5.68 eV 
LUMO -4.20 eV 

Inchi Code


InChI key


Related Categories

General description

ITCI-CI is a low band acceptor-donor-acceptor molecule with indacenodithieno[3,2‐b]thiophene (IT) as a central donor atom and 2‐(3‐oxo‐2,3‐dihydroinden‐1‐ylidene)malononitrile (IC) as an acceptor end group. It is also a non-fullerene electron acceptor with a push-pull structure that induces an intramolecular charge transfer and extends absorption.


ITCI-CI can be mainly used in the fabrication of polymeric solar cells with an efficiency that is less than 11% and excellent thermal stability.
ITIC-Cl is a novel non-fullerene acceptor material designed to use in organic photovoltaic devices.ITIC-Cl is a derivative of the ITIC molecule, which is increasingly used to replace fullerene based derivatives for organic solar cells due to significantly improved performances and stability.Compared to ITIC and its other derivatives such as ITIC-F, ITIC-Cl has a narrower bandgap and lower energy levels, and thus will be more suitable to pair with various p-type polymers.ITIC-Cl is readily soluble in most organic solvents used to fabricate organic electronic devices.


13 - Non Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Highly efficient inverted ternary organic solar cells with polymer fullerene-free acceptor as a third component material
Z. Kan, et al.
Journal of Power Sources, 413, 391-398 (2019)
An electron acceptor challenging fullerenes for efficient polymer solar cells
Lin Y, et al.
Advanced Materials, 27(7), 1170-1174 (2015)
Wenchao Zhao et al.
Advanced materials (Deerfield Beach, Fla.), 28(23), 4734-4739 (2016-04-12)
A nonfullerene-based polymer solar cell (PSC) that significantly outperforms fullerene-based PSCs with respect to the power-conversion efficiency is demonstrated for the first time. An efficiency of >11%, which is among the top values in the PSC field, and excellent thermal...
Liang Gao et al.
Advanced materials (Deerfield Beach, Fla.), 28(37), 8288-8295 (2016-07-09)
A nonfullerene polymer solar cell with a high efficiency of 9.26% is realized by using benzodithiophene-alt-fluorobenzotriazole copolymer J51 as a medium-bandgap polymer donor and the low-bandgap organic semiconductor ITIC with high extinction coefficients as the acceptor.
A tetrachlorinated molecular non-fullerene acceptor for high performance near-IR absorbing organic solar cells
Laventure A and Welch GC
Journal of Material Chemistry C, 6(34), 9060-9064 (2018)
The emerging organic photovoltaic (OPV) technology is very promising for low-cost solar energy production. OPV devices can be produced using high-throughput, large-volume printing methods on lightweight and flexible plastic substrates, making them easy to deploy and use in innovative ways.
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Professor Chen (Nankai University, China) and his team explain the strategies behind their recent record-breaking organic solar cells, reaching a power conversion efficiency of 17.3%.
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