Skip to main content
Article
Open structure ZnO/CdSe core/shell nanoneedle arrays for solar cells
Nanoscale Research Letters
  • Yanxue Chen
  • Lin Wei
  • Guanghua Zhang
  • Jun Jiao, Portland State University
Document Type
Article
Publication Date
9-20-2012
Subjects
  • Photovoltaic cells -- Materials -- Research,
  • Zinc oxide -- Electric properties,
  • Semiconductor films,
  • Cadmium selenide
Disciplines
Abstract

Open structure ZnO/CdSe core/shell nanoneedle arrays were prepared on a conducting glass (SnO2:F) substrate by solution deposition and electrochemical techniques. A uniform CdSe shell layer with a grain size of approximately several tens of nanometers was formed on the surface of ZnO nanoneedle cores after annealing at 400°C for 1.5 h. Fabricated solar cells based on these nanostructures exhibited a high short-circuit current density of about 10.5 mA/cm2 and an overall power conversion efficiency of 1.07% with solar illumination of 100 mW/cm2. Incident photo-to-current conversion efficiencies higher than 75% were also obtained.

Description

© 2012 Chen et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

DOI
10.1186/1556-276X-7-516
Persistent Identifier
http://archives.pdx.edu/ds/psu/9376
Citation Information
Chen et al.: Open structure ZnO/CdSe core/shell nanoneedle arrays for solar cells