Keyword Suggestions

Results
 
 
Account Login
 
 
 
 
 

Library Navigation

 
 

Browse Meetings

 
 
 
UU4.04 - Indium Phosphide Nanowire Network Grown on Transparent Conductive ZnO: Al Films for Thermoelectric Devices 
Date/Time:
April 23, 2014   9:00am - 9:15am
 
Speaker:
 
Taxonomy
 
 
III-V 
 
 
II-VI 
 
Share:
 

Growing semiconductor nanowires on an electrically conducting surface on a non-single crystal substrate enables us to design new device structures. For instance, aluminum doped zinc oxide (ZnO:Al) thin films can be sputtered on virtually any chemically and mechanically stable solid surfaces. Given ZnO:Al, our unique material system for thermoelectric applications can be based on randomly oriented and intersecting indium phosphide (InP) nanowire networks grown on ZnO:Al thin films. This structure can establish reliable electrical contact to InP nanowires and be utilized to fabricate working thermoelectric devices at low process and material costs because no single-crystal substrates are necessary. In this paper, we studied a material platform consisting of InP nanowire networks on ZnO:Al thin films. ZnO:Al thin films were deposited using radio frequency magnetron sputtering on various non-single crystalline substrates, and then dense InP nanowire networks were grown by plasma enhanced metal organic chemical vapor deposition (PE-MOCVD) with gold catalyst. X-ray diffraction and scanning electron microscope were employed for characterization of the samples. Optical properties of the samples were studied by photoluminescence and Raman spectroscopy at room temperature. The photoluminescence emission shows symmetric shape and redshift in comparison to those grown on Si. Possible Zn diffusion into the nanowires will be discussed.
 


 
 
Average Rating: (No Ratings)
  Was great, surpassed expectations, and I would recommend this
  Was good, met expectations, and I would recommend this
  Was okay, met most expectations
  Was okay but did not meet expectations
  Was bad and I would not recommend this
 



Submit
 
Keynote Address
Panel Discussion - Different Approaches to Commercializing Materials Research
Business Challenges to Starting a Materials-Based Company
Fred Kavli Distinguished Lectureship in Nanoscience
Application of In-situ X-ray Absorption, Emission and Powder Diffraction Studies in Nanomaterials Research - From the Design of an In-situ Experiment to Data Analysis