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Designing Polymers to Enable Nanoscale Thermomechanical Data Storage
Author(s) -
Gotsmann B.,
Knoll A. W.,
Pratt R.,
Frommer J.,
Hedrick J. L.,
Duerig U.
Publication year - 2010
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200902241
Subject(s) - nanomechanics , materials science , nanoscopic scale , polymer , nanotechnology , scaling , thermal stability , deformation (meteorology) , composite material , chemical engineering , atomic force microscopy , geometry , mathematics , engineering
Abstract Nanomechanics has been slow in entering nanotechnology because of extreme conditions resulting from scaling. This is an issue in particular for polymers, although widely used in macroscale applications. Highly repetitive nanoscale deformation cycling in combination with excellent shape retention and thermal stability is demonstrated. While generic principles described are pertinent to a range of applications, this demonstration is made on the example of polymer media in high‐density data storage. The information, represented as indents, is written and erased using a heated tip. A high‐performance polymer with a flexible aryletherketone backbone is designed with phenylethynyl crosslink chemistry. After optimization of crosslink density and topology, unprecedented performance is achieved in all relevant metrics. Demonstrations of endurance and retention are performed at 1 Tb in −2 density, showing 10 8 write cycles using the same tip, 10 3 erase cycles and 3 × 10 5 read cycles of the media, and extrapolated to 10 years of retention at 85 °C.