The rapid advancement in organic photovoltaics (OPVs) is largely driven by innovations in material science. Semiconducting polymers, designed to efficiently convert sunlight into electricity, are at the core of this progress. PBDB-T-2Cl (PM7) is a prime example of such a material, recognized for its exceptional performance as a polymeric donor in OPV devices. Understanding its intrinsic properties is key for researchers and product developers looking to leverage its capabilities.

PBDB-T-2Cl (PM7), with its CAS number 2239295-71-5 and molecular formula (C68H76Cl2O2S8)n, exhibits a band gap of approximately 1.95 eV and optimized frontier molecular orbital levels: HOMO at -5.52 eV and LUMO at -3.57 eV. These energy levels are crucial for achieving high open-circuit voltages (VOC) when paired with suitable electron acceptor materials in a bulk heterojunction (BHJ) architecture. The polymer's chemical structure, featuring chlorinated thiophene units, plays a vital role in its electronic characteristics and overall device efficiency, enabling power conversion efficiencies (PCE) to reach well over 14%. This makes PBDB-T-2Cl (PM7) a material of choice for high-performance OPVs.

Furthermore, the solubility of PBDB-T-2Cl (PM7) in common organic solvents such as 1,2-dichlorobenzene, chloroform, and chlorobenzene is a significant advantage for solution processing. This property allows for the facile fabrication of thin films via methods like spin-coating or slot-die coating, which are scalable and cost-effective for manufacturing large-area solar cells. Manufacturers in China specializing in electronic materials offer this polymer with a guaranteed purity of at least 97%, ensuring reproducible results for R&D and production.

The applications of PBDB-T-2Cl (PM7) extend beyond being solely a donor in OPVs. It has also shown promise as a hole-transport layer material in perovskite solar cells and is being explored for use in organic field-effect transistors (OFETs) and organic light-emitting diodes (OLEDs). For companies looking to purchase this advanced polymer, engaging with established manufacturers and suppliers in China provides access to high-quality material at competitive prices. When procuring, always confirm the product’s specifications and availability to meet your project’s demands.