Large Area Electronic Materials: Introduction

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Description

This lecture introduces the concept of large area electronic materials, focusing on benefits such as lower processing costs and drawbacks like non-uniformity. It covers driving forces like lower cost and equipment scale-up, as well as materials like Transparent Conducting Oxides (TCOs) and their applications. The use of TCOs in touch screens and solar cells is discussed, along with challenges related to transparency-conductivity trade-offs, carrier density limits, and defects affecting device performance.

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https://mediaspace.epfl.ch/media/0_qihjsbti

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Related concepts (41)

Printing is a process for mass reproducing text and images using a master form or template. The earliest non-paper products involving printing include cylinder seals and objects such as the Cyrus Cylinder and the Cylinders of Nabonidus. The earliest known form of printing as applied to paper was woodblock printing, which appeared in China before 220 AD for cloth printing. However, it would not be applied to paper until the seventh century.

A printing press is a mechanical device for applying pressure to an inked surface resting upon a print medium (such as paper or cloth), thereby transferring the ink. It marked a dramatic improvement on earlier printing methods in which the cloth, paper, or other medium was brushed or rubbed repeatedly to achieve the transfer of ink and accelerated the process. Typically used for texts, the invention and global spread of the printing press was one of the most influential events in the second millennium.

A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness. The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications. A familiar example is the household mirror, which typically has a thin metal coating on the back of a sheet of glass to form a reflective interface. The process of silvering was once commonly used to produce mirrors, while more recently the metal layer is deposited using techniques such as sputtering.

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