Zinc Oxide - Potential Applications - Electronics

Electronics

ZnO has wide direct band gap (3.37 eV or 375 nm at room temperature). Therefore, its most common potential applications are in laser diodes and light emitting diodes (LEDs). Some optoelectronic applications of ZnO overlap with that of GaN, which has a similar bandgap (~3.4 eV at room temperature). Compared to GaN, ZnO has a larger exciton binding energy (~60 meV, 2.4 times of the room-temperature thermal energy), which results in bright room-temperature emission from ZnO. ZnO can be combined with GaN for LED-applications. For instance as TCO layer and ZnO nanostructures provide better light outcoupling. Other properties of ZnO favorable for electronic applications include its stability to high-energy radiation and to wet chemical etching. Radiation resistance makes ZnO a suitable candidate for space applications. ZnO is the most promising candidate in the field of random lasers to produce an electronically pumped UV laser source.

The pointed tips of ZnO nanorods result in a strong enhancement of an electric field. Therefore, they can be used as field emitters.

Aluminium-doped ZnO layers are used as a transparent electrodes. The constituents Zn and Al are much cheaper and less toxic compared to the generally used indium tin oxide (ITO). One application which has begun to be commercially available is the use of ZnO as the front contact for solar cells or of liquid crystal displays.

Transparent thin-film transistors (TTFT) can be produced with ZnO. As field-effect transistors, they even may not need a p–n junction, thus avoiding the p-type doping problem of ZnO. Some of the field-effect transistors even use ZnO nanorods as conducting channels.

Read more about this topic:  Zinc Oxide, Potential Applications

Other articles related to "electronics":

Electronics - Construction Methods
... For instance, early electronics often used point to point wiring with components attached to wooden breadboards to construct circuits ... Most modern day electronics now use printed circuit boards made of materials such as FR4, or the cheaper (and less hard-wearing) Synthetic Resin Bonded Paper (SRBP, also known as Paxoline/Paxolin ... Health and environmental concerns associated with electronics assembly have gained increased attention in recent years, especially for products destined to ...
Electronics Illustrated
... Electronics Illustrated was an American magazine started in May 1958 by Fawcett Publications, the publishers of Mechanix Illustrated ... Ziff-Davis success with Popular Electronics magazine showed there was a market for electronics hobbyist magazines and the launch of the Sputnik satellite in 1957 had increased ... Electronics Illustrated (EI) was targeted for this hobbyist and do-it-yourself audience ...
Neptune (band) - Personnel
... Jason Sanford - baritone guitar, electric thumb piano, electronics, small electric spring, percussion, vocals Mark Pearson - baritone guitar, electronics, large electric spring, drums, percussion ...
National Electronics Museum
... The National Electronics Museum, located in Linthicum, Maryland, displays the history of the United States defense electronics ...

Famous quotes containing the word electronics:

    We live in a highly industrialized society and every member of the Black nation must be as academically and technologically developed as possible. To wage a revolution, we need competent teachers, doctors, nurses, electronics experts, chemists, biologists, physicists, political scientists, and so on and so forth. Black women sitting at home reading bedtime stories to their children are just not going to make it.
    Frances Beale, African American feminist and civil rights activist. The Black Woman, ch. 14 (1970)