Abstract
The broad availability of high throughput nanostructure fabrication is essential for advancement in nanoscale science. Large-scale manufacturing developed by the semiconductor industry is often too resource-intensive for medium scale laboratory prototyping. We demonstrate the inexpensive wafer scale directwrite of Ge and Si nanostructures with a 4-inch mask aligner retrofitted with a conducting microstructured stamp. A bias applied between the stamp and an underlying silicon substrate results in the reaction of diphenylgermane and diphenylsilane precursors at the stamp-substrate interface to yield the directwrite of Ge and Si nanostructures in determined locations. With the increasing number of outdated mask aligners available from the semiconductor industry and an extensive library of liquid precursors, this strategy provides facile, inexpensive, wafer scale semiconductor direct-write for applications such as electronics, photonics, and photovoltaics.
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Sato, H., Vasko, S.E. & Rolandi, M. Wafer scale direct-write of Ge and Si nanostructures with conducting stamps and a modified mask aligner. Nano Res. 6, 263–268 (2013). https://doi.org/10.1007/s12274-013-0302-1
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DOI: https://doi.org/10.1007/s12274-013-0302-1