At NINGBO INNO PHARMCHEM CO.,LTD., we believe that a deep understanding of chemical properties is fundamental to unlocking technological advancements. This is particularly true for materials used in cutting-edge applications like solar energy conversion. Today, we focus on N719 dye (CAS 207347-46-4), a sophisticated ruthenium complex that serves as a cornerstone in the development of high-performance Dye-Sensitized Solar Cells (DSSCs).

N719 dye, chemically known as Di-tetrabutylammonium cis-bis(isothiocyanato)bis(2,2′-bipyridyl-4,4′-dicarboxylato)ruthenium(II), is a complex organometallic compound. Its intricate molecular structure, featuring a central ruthenium atom coordinated with bipyridyl ligands and thiocyanate groups, is precisely designed to interact with light and facilitate charge transfer. The presence of tetrabutylammonium counterions enhances its solubility in common organic solvents used in DSSC fabrication, a critical advantage over earlier dye formulations.

The absorption spectrum of N719 dye is characterized by strong absorption in the visible region, with peak absorption wavelengths around 313 nm and 534 nm in ethanol. This broad absorption capability allows the dye to efficiently capture a wide range of solar photons, converting them into excited electrons. This excitation is the first crucial step in the photovoltaic process within a DSSC. The HOMO and LUMO energy levels of N719 dye are also important parameters, influencing the driving force for electron injection into the semiconductor (typically TiO2) and the subsequent regeneration process. These precise energy levels contribute to the overall efficiency and stability of the solar cell.

The chemical formula C58H86N8O8RuS2 and a molecular weight of approximately 1188.55 g/mol highlight the complexity of this molecule. Its physical appearance is typically a brownish-red or maroon crystalline powder, indicating its solid-state form under standard conditions. The high purity, often exceeding 97% or 98%, is paramount for ensuring optimal electronic properties and long-term device stability. When you consider purchasing N719 dye, prioritizing suppliers that guarantee this level of purity is essential for successful research outcomes.

At NINGBO INNO PHARMCHEM CO.,LTD., we understand the importance of these chemical properties. We ensure our N719 dye is manufactured to the highest standards, making it an ideal choice for those seeking reliable ruthenium dye for solar cells or advanced materials for organic electronics. Understanding these fundamental chemical characteristics is key to leveraging the full potential of N719 dye in your groundbreaking DSSC projects.