If nanostructures were authors, cadmium selenide (CdSe) nanorods would be Hemingway. Like him, they can endure the heat (up to 662 °F for long periods of time) and don’t break down (in the presence of oxygen or oxygen-like molecules). CdSe nanorods are one of the II-VI semiconductor nanostructures that are used in various energy conversion applications, including photocatalysis. Using this material, solar energy can be transformed into hydrogen fuel. A sustainability challenge is finding a photocatalyst that has both predictable electronic properties and the durability required to withstand the harsh chemical and thermal conditions. Because little is known about the general chemical reactivity and thermal stability of II-VI semiconductor nanostructures, researchers investigated the behavior of CdSe nanorods against various conditions of extreme chemical and physical stress. The results provide valuable insights into the fate and possible ways to enhance the stability and improve the use of II-VI semiconductor nanostructures in photocatalysis, photovoltaics, optics, and LEDs.
How Robust are Semiconductor Nanorods?