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Solution‐processed semitransparent p–n graphene oxide:CNT/ZnO heterojunction diodes for visible‐blind UV sensors
Author(s) -
Cuong Tran Viet,
Tien Huynh Ngoc,
Luan Van Hoang,
Pham Viet Hung,
Chung Jin Suk,
Yoo Dae Hwang,
Hahn Sung Hong,
Koo KeeKahb,
Kohl Paul A.,
Hur Seung Hyun,
Kim Eui Jung
Publication year - 2011
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201026553
Subject(s) - materials science , graphene , nanorod , heterojunction , optoelectronics , carbon nanotube , diode , oxide , absorption (acoustics) , zinc , solution process , visible spectrum , nanotechnology , composite material , metallurgy
A high quality transparent p–n heterojunction device comprised of 1D zinc oxide (ZnO) nanorods (NRs) and an ultrathin 2D graphene oxide (GO):carbon nanotube (CNT) hybrid film was fabricated through a solution process. The turn on voltage and ideality factor of the device were 1.5 V and 6.1, respectively. Optical measurements revealed that the UV absorption of the ZnO NRs increased after a GO:CNT hybrid film was spray‐coated onto the NRs. As a result, the device exhibited a high response to UV illumination. The fabricated diode displayed high rectifying characteristics and excellent performance as a visible‐blind UV sensor.