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Arrays of Silicon Micro/Nanostructures Formed in Suspended Configurations for Deterministic Assembly Using Flat and Roller‐Type Stamps
Author(s) -
Yang Yumi,
Hwang Youngkyu,
Cho Hyun A,
Song JungHoon,
Park SeongJu,
Rogers John A.,
Ko Heung Cho
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201001633
Subject(s) - materials science , fabrication , silicon , nanostructure , nanotechnology , transfer printing , optoelectronics , photodiode , semiconductor , ceramic , composite material , medicine , alternative medicine , pathology
The ability to create and manipulate large arrays of inorganic semiconductor micro/nanostructures for integration on unconventional substrates provides new possibilities in device engineering. Here, simple methods are described for the preparation of structures of single crystalline silicon in suspended and tethered configurations that facilitate their deterministic assembly using transfer‐printing techniques. Diverse shapes (e.g., straight or curved edges), thicknesses (between 55 nm and 3 μm), and sizes (areas of 4000 μm 2 to 117 mm 2 ) of structures in varied layouts (regular or irregular arrays, with dense or sparse coverages) can be achieved, using either flat or cylindrical roller‐type stamps. To demonstrate the technique, printing with 100% yield onto curved, rigid supports of glass and ceramics and onto thin sheets of plastic is shown. The fabrication of a printed array of silicon p + –i–n + junction photodiodes on plastic is representative of device‐printing capabilities.