Nanochannel glass materials
Nanochannel glass materials are complex glass structures containing large numbers of parallel hollow channels. In its simplest form, the hollow channels are arranged in geometric arrays with packing densities as great as 1011 channels/cm2. Channel dimensions are controllable from micrometers to tens of nanometers, while retaining excellent channel uniformity. Exact replicas of the channel glass can be made from a variety of materials. This is a low cost method for creating identical structures with nanoscale features in large numbers.
These materials have high density of uniform channels with diameters from 15 micrometres to 15 nanometers. These are rigid structures with serviceable temperatures to at least 300 °C, with potential up to 1000 °C. Furthermore these are optically transparent photonic structures with high degree of reproducibility.
These can be used as a material for chromatographic columns, unidirectional conductors, Microchannel plate and nonlinear optical devices. Other uses are as masks for semiconductor development, including ion implantation, optical lithography, and reactive ion etching.
- E-beam lithography
- Ion beam lithography
- Maskless lithography
- Porous glass
- Vycor glass
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- "Nanochannel Glass Materials" (Online page U.S. Navy website). Naval Research Laboratory. Technology Transfer Office, Code 1004. Retrieved 2011-07-04.
- Tonucci, Ronald J.; Hubler, Graham K.; Sibilia, Concita; Wiersma, Diederik S. (2007). "AIP Conference Proceedings" 959. pp. 59–71. doi:10.1063/1.2821605.
- Pearson, D. H.; Tonucci, R. J. (1995). "Nanochannel Glass Replica Membranes". Science 270 (5233): 68–70. Bibcode:1995Sci...270...68P. doi:10.1126/science.270.5233.68.
- Bryant, Garnett W.; Liu, Ansheng (1999). Band, Yehuda B, ed. "Proceedings of SPIE". Optical Pulse and Beam Propagation 3609. pp. 67–75. doi:10.1117/12.351044.
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- Pearson, D. H.; Tonucci, R. J. (1995). "Nanochannel Glass Replica Membranes". Science 270 (5233): 68. Bibcode:1995Sci...270...68P. doi:10.1126/science.270.5233.68.
- U.S. Patent 5,976,444 "Nanochannel glass replica membranes"