title: Transparent electronics based on transfer printed aligned carbon nanotubes on rigid and flexible substrates.
abstract: We report high-performance fully transparent thin-film transistors (TTFTs) on both rigid and flexible substrates with transfer printed aligned nanotubes as the active channel and indium-tin oxide as the source, drain, and gate electrodes. Such transistors have been fabricated through low-temperature processing, which allowed device fabrication even on flexible substrates. Transparent transistors with high effective mobilities (approximately 1300 cm(2) V(-1) s(-1)) were first demonstrated on glass substrates via engineering of the source and drain contacts, and high on/off ratio (3 x 10(4)) was achieved using electrical breakdown. In addition, flexible TTFTs with good transparency were also fabricated and successfully operated under bending up to 120 degrees . All of the devices showed good transparency (approximately 80% on average). The transparent transistors were further utilized to construct a fully transparent and flexible logic inverter on a plastic substrate and also used to control commercial GaN light-emitting diodes (LEDs) with light intensity modulation of 10(3). Our results suggest that aligned nanotubes have great potential to work as building blocks for future transparent electronics.
authors.affiliation: Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA.
authors.forename: Fumiaki N
authors.initials: FN
authors.lastname: Ishikawa
authors.forename: Hsiao-Kang
authors.initials: HK
authors.lastname: Chang
authors.forename: Koungmin
authors.initials: K
authors.lastname: Ryu
authors.forename: Po-Chiang
authors.initials: PC
authors.lastname: Chen
authors.forename: Alexander
authors.initials: A
authors.lastname: Badmaev
authors.forename: Lewis
authors.initials: L
authors.lastname: Gomez De Arco
authors.forename: Guozhen
authors.initials: G
authors.lastname: Shen
authors.forename: Chongwu
authors.initials: C
authors.lastname: Zhou
mesh_terms: D002244:Carbon / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods; D004581:Electronics; D004867:Equipment Design; D005898:Glass; D008027:Light; D008422:Materials Testing; D015233:Models, Statistical; D049329:Nanostructures / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D011093:Polyethylene Terephthalates / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature
chemical_list: D037742:Nanotubes, Carbon; D011093:Polyethylene Terephthalates; D002244:Carbon