Perovskite Materials ITIC Description
ITIC (Indacenodithiophene-based non-fullerene acceptor) is a small molecule acceptor material widely used in high-efficiency organic photovoltaics (OPVs) and perovskite solar cells. As a non-fullerene acceptor (NFA), ITIC features a narrow bandgap and complementary absorption with typical donor polymers such as PBDB-T and PTQ1, enabling efficient charge separation and transport in bulk heterojunction devices.
ITIC is also employed as an interfacial modifier for the electron transport layer (ETL) in planar perovskite solar cells. When deposited on TiO₂ or SnO₂ layers, ITIC reduces surface defects, smoothens the film morphology, and optimizes band alignment between the ETL and perovskite layer, resulting in improved power conversion efficiency (PCE) and reduced hysteresis.
Key References:
- Non-Fullerene Polymer Solar Cells Based on Alkylthio and Fluorine Substituted 2D-Conjugated Polymers Reach 9.5% Efficiency. J. Am. Chem. Soc. 2016, 138, 13, 4657–4664. DOI: 10.1021/jacs.6b01744
- ITIC-modified TiO₂ electron transport layer enables planar perovskite solar cells with efficiency exceeding 20%.
Perovskite Materials ITIC Application
ITIC is primarily applied as an interfacial modifier for the electron transport layer (ETL) in planar-type perovskite solar cells. When deposited as a thin interlayer between TiO₂ (or SnO₂) and the perovskite active layer, ITIC:
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Passivates surface defects on the ETL, reducing non-radiative recombination
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Smoothens the ETL surface, promoting uniform perovskite crystal growth
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Optimizes band alignment, facilitating electron extraction and blocking hole back-transfer
These combined effects have been shown to improve power conversion efficiency (PCE) from ~18% to over 20%, while significantly reducing J-V hysteresis.
Other Applications:
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Non-fullerene acceptor in bulk heterojunction (BHJ) organic photovoltaics
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Ternary blend solar cells in combination with fullerene derivatives
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Interfacial layer in flexible and tandem solar cell architectures
Perovskite Materials ITIC Packaging
Our Perovskite Materials ITIC is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Perovskite Materials ITIC FAQs
Q1: What is the CAS number and molecular weight of ITIC?
ITIC has a CAS number of 1664293-06-4 and a molecular weight of 1427.94 g/mol. Its chemical formula is C₉₄H₈₂N₄O₂S₄.
Q2: How does ITIC improve perovskite solar cells?
ITIC modifies the electron transport layer (ETL) by passivating surface defects, smoothing morphology, and optimizing energy level alignment. These effects reduce charge recombination and hysteresis, leading to improved device efficiency and stability.
Q3: What purity is available and how is it characterized?
Stanford Optics supplies ITIC with >99% purity, determined by HPLC (High-Performance Liquid Chromatography). COA (Certificate of Analysis) and SDS (Safety Data Sheet) are available upon request for each batch.
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