News & Updates
Search Research Content
Resource Finder at Kennedy Krieger Institute
A free resource that provides access to information and support for individuals and families living with developmental disabilities.
Inorganic-organic p-n heterojunction nanotree arrays for a high-sensitivity diode humidity sensor.
|Title||Inorganic-organic p-n heterojunction nanotree arrays for a high-sensitivity diode humidity sensor.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Wang K, Qian X, Zhang L, Li Y, Liu H|
|Journal||ACS applied materials & interfaces|
|Date Published||2013 Jun 26|
Large-area and ordered arrays (16 cm(2)) of an inorganic-organic p-n heterojunction nanotree (NT) were successfully fabricated. The nanotree arrays consist of ZnO nanorods (NRs) as backbones and CuTCNQ (TCNQ = 7,7,8,8-tetracyanoquinodimethane) NRs as branches. The sizes of CuTCNQ NRs can be tuned by the thickness of the Cu layer deposited on the surface of ZnO NR. The CuTCNQ/ZnO NT arrays displayed excellent diode nature and obvious size-dependent rectification ratios were observed. Moreover, the CuTCNQ/ZnO NT arrays were first applied for the fabrication of a diode-type humidity sensor, which displayed ultrahigh sensitivity and quick response/recovery properties at room temperature. The detection limitation of this new diode-type humidity sensor lowers to 5% relative humidity (RH).
|Alternate Journal||ACS Appl Mater Interfaces|