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DCB-BPA

Product Name: DCB-BPA, Br-4PADCB, (4-(5,9-Dibromo-7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid
Catalog Number: ALCM-SAM001
CAS Number: N/A

Product Description

Chemical Structure of DCB-BPA

DCB-BPA is a high-purity small molecule engineered to form self-assembled monolayers (SAMs), effectively enhancing charge transport and interface passivation in optoelectronic devices. Its structure includes a 5,9-dibromo-dibenzo[c,g]carbazole terminal unit, a butyl spacer, and a phosphonic acid anchoring group—together enabling strong, stable adsorption on oxide surfaces such as ITO.

As the brominated analogue of 4PADCB, DCB-BPA offers improved interfacial properties in both perovskite and organic solar cells. It promotes face-on molecular orientation, facilitates efficient hole extraction, and significantly reduces nonradiative recombination losses. These features make it a high-performance alternative to conventional hole transport layers such as PEDOT:PSS in inverted device architectures.

Designed for wide bandgap (WBG) perovskite solar cells, DCB-BPA enhances energy level alignment and supports the growth of high-quality perovskite films with lower trap densities. It is solution-processable in common polar solvents (e.g., ethanol, methanol) at low concentrations and compatible with standard spin-coating and low-temperature annealing—making it suitable for both research and scalable device manufacturing.

Product Information

Item	Details
CAS Number	N/A
Catalog Number	ALCM-SAM001
Synonyms	Br-4PADCB, (4-(5,9-Dibromo-7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid
Chemical Formula	C24H22Br2NO3P
Molecular Weight	561.2 g/mol
Purity	> 98% (HPLC)
Appearance	White powder
Melting Point	Td = 269 °C
HOMO / LUMO	HOMO = 5.56 eV, LUMO = 2.54 eV
Absorption	Not available
Fluorescence	Not available

Application Highlights

Function: Inverted p-i-n perovskite solar cells, polymer-based organic solar cells (OSCs)
Device Compatibility: Inverted p-i-n perovskite solar cells, polymer-based organic solar cells (OSCs)
Advantages:
- Promotes favorable molecular orientation at interfaces
- Reduces open-circuit voltage (VOC) loss and suppresses interfacial recombination
- Enhances charge extraction and device stability
- Provides a superior, solution-processable alternative to PEDOT:PSS

Why Choose Alfa Chemistry?

Alfa Chemistry supplies high-purity SAM materials under strict quality control, with reliable characterization and fast global delivery—ideal for both advanced research and scalable photovoltaic production.

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