Optical and photovoltaic properties of zinc sulfide quantum dots fabricated by spin-assisted successive ion layer adsorption and reaction technique

Masood Mehrabian; Kavoos Mirabbaszadeh; Hossein Afarideh; Yoon Sang Kim

doi:10.1117/1.JPE.4.043093

18 July 2014 Optical and photovoltaic properties of zinc sulfide quantum dots fabricated by spin-assisted successive ion layer adsorption and reaction technique

Masood Mehrabian, Kavoos Mirabbaszadeh, Hossein Afarideh, Yoon Sang Kim

Author Affiliations +

Journal of Photonics for Energy, Vol. 4, Issue 1, 043093 (July 2014). https://doi.org/10.1117/1.JPE.4.043093

Abstract

Zinc sulfide (ZnS) quantum dots were prepared by successive ion layer adsorption and reaction (SILAR) technique based on spin coating (spin-SILAR). The effect of the number of SILAR cycle (n) on optical and photovoltaic properties was studied. An optimized ZnS quantum dot sensitized solar cell demonstrated maximum power conversion efficiency of 3.58% with a short-circuit current of 10.53 mA/cm² and an open-circuit voltage of 0.58 V under one sun illumination (AM1.5). The results showed that a ZnS QD layer with n=10 (thickness ∼80 nm) can be used as a highly efficient sensitizer for solar cells. The ZnS QD layer acts as a light absorber and a recombination blocking layer in the ITO/ZnO film/ZnS QD/P3HT/PCBM/Ag structure.

Citation Download Citation

Masood Mehrabian, Kavoos Mirabbaszadeh, Hossein Afarideh, and Yoon Sang Kim "Optical and photovoltaic properties of zinc sulfide quantum dots fabricated by spin-assisted successive ion layer adsorption and reaction technique," Journal of Photonics for Energy 4(1), 043093 (18 July 2014). https://doi.org/10.1117/1.JPE.4.043093

Published: 18 July 2014

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