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Cup‐Stacked Carbon Nanotube Schottky Diodes for Photovoltaics and Photodetectors
Author(s) -
Kim KiHwan,
Brunel David,
Gohier Aurelien,
Sacco Leandro,
Châtelet Marc,
Cojocaru CostelSorin
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201400775
Subject(s) - materials science , carbon nanotube , schottky diode , schottky barrier , optoelectronics , photovoltaics , diode , nanotube , photodetector , nanotechnology , nanoscopic scale , metal–semiconductor junction , photovoltaic system , electrical engineering , engineering
High‐performance optoelectronic devices based on cup‐stacked carbon nanotubes are realized. Based on a Schottky barrier model, rectifying behaviors and high photoresponse are observed by using growth catalysts as nanoscale electronic contacts. Similar performances are also obtained and furthermore tuned by using the nanotube's defective surface as effective decoration sites, transforming nanotube resistors into Schottky diodes.