Organic solar cell by using vertically aligned nanostructured ZnO nanorods

Author

Rao, A.D. ; Karalatti, Suresh ; Thomas, Tessamma ; Ramamurthy, Praveen C.

Author_Institution

Indian Inst. of Sci., Bangalore, India

fYear

2013

fDate

16-21 June 2013

Firstpage

2752

Lastpage

2756

Abstract

A low temperature solution approach was employed to grow zinc oxide (ZnO) nanorods with various aspect ratios. Va r i o u s sizes (diameter-10-25nm) of the nanorods were grown by changing the concentrations of the growth solution. The length (50nm-500nm) of nanorods was controlled using growth times. These one-dimensional (1D) nanostructures with direct paths for a charge transport with high surface area for light harvesting, are promising candidates for organic photovoltaics (OPV). The structural and optical properties of the prepared ZnO nanorods have been studied using SEM, XRD and UV-Vis absorption spectroscopy. Using as-grown ZnO inverted OPV was fabricated. ZnO nanorods were subjected to various doses of UV-ozone irradiation which led to improvement in transmission and hence enhanced device performance.

Keywords

X-ray diffraction; nanorods; organic semiconductors; scanning electron microscopy; solar cells; ultraviolet spectroscopy; visible spectroscopy; zinc compounds; 1D nanostructures; SEM; UV-Vis absorption spectroscopy; UV-ozone irradiation; XRD; ZnO; charge transport; growth solution; light harvesting; low temperature solution approach; one-dimensional nanostructures; optical properties; organic solar cell; structural properties; vertically aligned nanostructured zinc oxide nanorods; zinc oxide inverted OPV; Nanoscale devices; Nanowires; Photovoltaic cells; Photovoltaic systems; Polymers; Zinc oxide; nanorods; photovoltaic device; polymer; zinc oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/PVSC.2013.6745043

Filename

6745043