Fabrication of ZnO/CdS core/shell nanowire arrays for efficient solar energy conversion
Year: 2009
Type: article
Abstract: ZnO/CdS core/shell nanowire heterostructure arrays are fabricated by a two-step chemical solution method for use in semiconductor-sensitized photoelectrochemical cells (PECs). The successive ion layer adsorption and reaction (SILAR) shows a remarkable controllability of CdS shell thickness, which affects visible-light absorption properties and PEC performances of the heterostructures. The cell has a high short-circuit photocurrent density of 7.23 mA/cm2 with a power conversion efficiency of 3.53% under AM 1.5G illumination at 100 mW/cm2. These results demonstrate that the ZnO/CdS core/shell heterostructure nanowire arrays can provide a facile and compatible frame for the potential applications in nanowire-based solar cells.
Source: Journal of Materials Chemistry
DOI: 10.1039/b904993b
Institution: Pohang University of Science and Technology
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1967369641