1,2-Ethanedithiol: Applications in Light Emitting Diodes and its Health Hazards

Description

1,2-Ethanedithiol has a very characteristic odor which is compared by many people to rotten cabbage. It is a common building block in organic synthesis and an excellent ligand for metal ions.

Preparation

Ethane-1,2-dithiol is made commercially by the reaction of 1,2-dichloroethane with aqueous sodium bisulfide. In the laboratory, it can also be prepared by the action of 1,2-dibromoethane on thiourea followed by hydrolysis.

Applications in Light Emitting Diodes

A novel and facile method to improve the performance of light-emitting devices (LEDs), in which a multilayer colloidal CdSe@ZnS quantum-dots (QDs) was deposited by layer-by-layer spin-coating in combination with 1,2-ethanedithiol (EDT) solid state treatment sequentially to form an emissive layer (EML). The role of EDT treatment is to facilitate the formation of multi-QD layer in LEDs and passivate the surface of QDs, which in turn, modify charge injection properties in QD-LED devices. 

Health Hazards

LD50 orally in Rabbit: 120 mg/kg

Hazard Statements

Flammable liquid and vapor;

Toxic if swallowed;

Fatal in contact with skin or if inhaled.