IO-4Cl

IO-4Cl, n-type non-fullerene acceptor

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Specifications | Pricing and Options | MSDS | Literature and Reviews

Unlike most narrow bandgap non-fullerene acceptors (NFAs), IO-4Cl is a medium/wide bandgap n-type non-fullerene semiconductor bearing an electron rich indacenodithieno-[3,2-b]thiophene (also known as ITIC core). It has a similar structure to ITIC-4Cl, but the electron-accepting units are composed of two carbonyl units while ITIC-4Cl has one carbonyl group and one more electron-withdrawing malononitrile group.

IO-4Cl is relatively blue-shifted in absorption when compared to ITIC-4Cl, with an absorption band centred at 500 - 700 nm in the visible light region. IO-4Cl is known for indoor organic photovoltaic (IOPV) applications. When IO-4Cl:PM6 blend is used as the active layer materials, PCEs of over 26% under 1000 lux LED or FC have been achieved. The IOPVs photovoltaic cells maintained most of their initial PCE after 1000 hours under continuous indoor illumination with the following device structure [1].

Device structure: ITO/PEDOT:PSS/PBDB-T-2F (PM6):IO-4Cl/PFN-Br/Al

Thickness (nm)	V_OC(V)	J_SC (mA cm^-2)	FF (%)	PCE (%)
100	1.09	73.8	81.5	26.4

General Information

CAS Number	N/A
Chemical Formula	C₈₈H₇₈Cl₄O₄S₄
Purity	≥98% (1H NMR)
Full Name	3,9-bis[5,6-dichloro-1H-indene-1,3(2H)dione]-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2’,3’-d’]-s-indaceno[1,2-b:5,6-b’]dithiophene
Synonyms	IO-4Cl
Molecular Weight	1469.63 g/mol
HOMO / LUMO	HOMO = -5.72 eV, LUMO = -3.83 eV [1]
Solubility	Chloroform, chlorobenzene and dichlorobenzene
Form	Black powder/crystal
Classification / Family	n-type non-fullerene electron acceptors, Organic semiconducting materials, Low band-gap small molecule, Small molecular acceptor, Indoor organic photovoltaics (IOPVs), Polymer solar cells, NF-PSCs.

Chemical Structure

Pricing

Batch	Quantity	Price
M2298A1	100 mg	£340
M2298A1	250 mg	£680
M2298A1	500 mg	£1150
M2298A1	1 g	£2000
M2298A1	5 g / 10 g*	Please contact us for details

*for 5 - 10 grams order quantity, the lead time is 4 - 6 weeks

MSDS Documentation

IO-4Cl MSDS sheet

Literature and Reviews

Wide-gap non-fullerene acceptor enabling high-performance organic photovoltaic cells for indoor applications, Nat. Energy, 4, 768–775 (2019); DOI:10.1038/s41560-019-0448-5.
Indoor Organic Photovoltaics: Optimal Cell Design Principles with Synergistic Parasitic Resistance and Optical Modulation Effect, M. Saeed et al., Adv. Energy Mater., 2003103 (2021); Adv. Energy Mater. 2021, 2003103.
Recent Progress on Indoor Organic Photovoltaics: From Molecular Design to Production Scale, M. Mainville et al., ACS Energy Lett., 5, 4, 1186–1197 (2020); DOI: 10.1021/acsenergylett.0c00177.

Non-fullerene Small Molecules-Enabled High-Performance Organic Photovoltaics for Indoor Energy Harvesting, C. Lee et al., Adv. Energy Sustainability Res., 2100041 (2021); DOI: 10.1002/aesr.202100041.

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