Development of Precursor Inks for Electronic Materials Deposition
Abstract:Thin film semiconductors, metals and insulators constitute the basic building blocks for a wide range of devices including solar cells, flat panel displays, sensors and a variety of electro-optical devices. Conventionally these devices have been made up from a variety of PVD deposited layers and photolithographic patterning steps in sequence. This approach is both capital and time intensive and uses materials inefficiently. The need to lower the cost and increase the scale and market penetration of these devices has stimulated an examination of low-cost deposition and patterning approaches. NREL has focused on the development of ink-based technologies coupled with rapid thermal processing and laser processing as an alternative to conventional microelectronics processing. Deposition of thin films using liquid precursor inks offers an attractive alternative to the traditional vacuum-based approaches. The key is the development of precursors that are stable and easy to handle and that decompose under reasonable conditions to give the desired material. We have developed a flexible approach to ink development that involves the use of metal organic decomposition (MOD) complexes and nanoparticles as precursors for deposition of materials. Using this approach, semiconductor and oxide films have been deposited using both nanoparticle and MOD inks, and inks for printing metals and conducting polymers have been developed. Ink formulations and the advantages of liquid precursors will be discussed and illustrated using examples of semiconductor and metal deposition. We will also briefly assess the state of the art for ink jet printing (the preferred deposition tool) for this technology where an increasing commercial interest in printing electronic materials has driven the development of higher resolution, higher through-put tools.
Document Type: Research Article
Publication date: January 1, 2006
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Terms & Conditions
- ingentaconnect is not responsible for the content or availability of external websites