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DMAcPA

Product Name: DMAcPA, (4-(2,7-Dibromo-9,9-dimethylacridin-10(9H)-yl)butyl)phosphonic acid
Catalog Number: ALCM2971088374
CAS Number: 2971088-37-4

Product Description

Chemical Structure of DMAcPA

DMAcPA ((4-(2,7-Dibromo-9,9-dimethylacridin-10(9H)-yl)butyl)phosphonic acid) is a high-purity self-assembled monolayer (SAM) molecule tailored to improve charge extraction and interface engineering in advanced photovoltaic devices. Structurally, it features a phosphonic acid anchoring group, a flexible butyl linker, and a 2,7-dibromo-substituted dimethylacridine moiety that introduces steric hindrance to minimize intermolecular aggregation.

DMAcPA serves dual purposes: as an independent hole transport/extraction layer or as a dopant introduced into perovskite precursor formulations. When used as a dopant, it enhances perovskite film morphology, reduces excess PbI₂, and passivates deep-level trap states at grain boundaries and surfaces. This leads to denser, more uniform films with suppressed non-radiative recombination.

This SAM material eliminates the need for conventional hole transport layers such as PEDOT:PSS or PTAA, simplifying the device architecture. High-efficiency p-i-n perovskite solar cells incorporating DMAcPA have demonstrated impressive power conversion efficiency and operational durability under light soaking.

Key Advantages

Enables high PCEs without conventional hole transport layers
Passivates defects and suppresses interfacial recombination
Promotes uniform, high-quality perovskite film formation
Solution-processable under mild conditions
Suitable for both perovskite and organic solar cell systems
Enhances long-term stability of photovoltaic devices

Product Information

Item	Details
CAS Number	2971088-37-4
Catalog Number	ALCM2971088374
Synonyms	(4-(2,7-Dibromo-9,9-dimethylacridin-10(9H)-yl)butyl)phosphonic acid
Chemical Formula	C19H22Br2NO3P
Molecular Weight	503.16 g/mol
Purity	> 98% (HPLC)
Appearance	Pale grey powder
Melting Point	Td = 217.8 °C
HOMO / LUMO	HOMO = 5.98 eV, LUMO = 2.33 eV
Absorption	Not available
Fluorescence	Not available

Application Guidelines

1. Standalone Self-Assembled Monolayer

Compatible solvents: THF, anhydrous ethanol, IPA
Recommended concentration: 0.5–3.0 mg/mL
Process: Spin-coating followed by thermal annealing under inert atmosphere.

2. Dopant for Perovskite Precursor Solutions

Compatible solvents: DMF/DMSO (v/v mixture)
Recommended concentration: 1.0–7.0 mg/mL
Process: Add to preheated precursor solution, spin-coat onto substrate, then anneal under inert conditions.

Why Choose Alfa Chemistry?

Alfa Chemistry provides high-performance self-assembled monolayer materials produced under rigorous quality standards. With fast global delivery, reliable analytical data, and application-ready technical support, our SAM materials are ideal for both cutting-edge research and scalable photovoltaic production.

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