Description

Tri-n-Octylphosphine Selenide is a high-purity organophosphorus-selenium compound, primarily utilized as a critical precursor in advanced material synthesis. Its value lies in its role as a highly effective selenium source for the controlled production of high-quality semiconductor nanocrystals, particularly quantum dots. This product is essential for researchers and manufacturers in the nanotechnology, optoelectronics, and advanced materials sectors who require precise and reliable reagents for developing next-generation displays, solar cells, and biomedical imaging agents.

Application

• Quantum Dot Synthesis: As a key selenium precursor for the high-temperature colloidal synthesis of cadmium selenide (CdSe), lead selenide (PbSe), and other II-VI or IV-VI semiconductor quantum dots.
• Nanocrystal Production: Used in the preparation of uniform, size-tunable nanocrystals for applications in light-emitting diodes (QLEDs) and display technologies.
• Photovoltaic Research: Employed in the development of next-generation solar cells, including quantum dot solar cells (QDSCs), due to its ability to facilitate high-quality selenide film deposition.
• Biomedical Imaging Probes: Serves as a reagent in synthesizing biocompatible quantum dots used as fluorescent labels for in vitro and in vivo imaging.
• Catalysis: Acts as a ligand or precursor in organometallic chemistry and catalytic processes involving selenium transfer.
• Material Science Research: A fundamental chemical for academic and industrial R&D focused on novel selenide-based nanomaterials and their optical/electronic properties.

Basic Information

Item	Details
Product Name	Tri-n-Octylphosphine Selenide
CAS No.	20612-73-1
Molecular Formula	C24H51PSe
Molecular Weight	449.59 g/mol
Synonyms	Trioctylphosphine Selenide; TOPSe; Trioctylphosphine Selenide; Tri-n-Octylphosphine Selenide; Selenium Trioctylphosphine; Phosphine, trioctyl-, selenide; Tris(n-octyl)phosphine selenide; n-Octylphosphine Selenide; (Octyl)3PSe
EINECS	Contact for details

Quality Control

Our Tri-n-Octylphosphine Selenide is produced and handled under stringent quality management protocols to ensure batch-to-batch consistency and high purity, which is critical for sensitive nanocrystal synthesis. Each lot undergoes comprehensive analytical testing, including NMR, HPLC, and elemental analysis, to verify identity, purity, and the absence of critical impurities like oxides or free phosphines. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and R&D documentation.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at room temperature (15-25°C) in a cool, dry, and well-ventilated place. Due to its sensitivity to oxidation and moisture, containers should be kept sealed and only opened in a controlled, moisture-free environment.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95%
31P NMR Purity	≥ 97%
Free TOP (Trioctylphosphine)	≤ 2%
Solubility	Soluble in common organic solvents

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.