Approach to the carbon-based superlattice structure solar cell

Author

Kojima, Nobuaki ; Goetzberger, Oliver ; Ohshita, Yoshio ; Yamaguchi, Masafumi

Author_Institution

Toyota Technol. Inst., Nagoya, Japan

fYear

2000

fDate

2000

Firstpage

873

Lastpage

875

Abstract

The nitrogen doping effects in C₆₀ films by RF plasma source have been investigated, and it is found that the nitrogen ion bombardment breaks up C₆₀ molecules and changes them into amorphous carbon. Based on these results, formation of C₆₀/amorphous carbon superlattice structure has been proposed. Quantum size effects of C₆₀ may enhance light absorption, and conductivity control is enabled by impurity doping in the amorphous carbon layers. The periodic structure of the resulting films has been confirmed by XRD measurements, as the preliminary results of fabrication of the superlattice structure

Keywords

X-ray diffraction; amorphous semiconductors; carbon; fullerene devices; ion beam applications; nitrogen; plasma CVD; plasma CVD coatings; semiconductor doping; semiconductor superlattices; solar cells; vacuum deposited coatings; vacuum deposition; C₆₀ films; C₆₀/amorphous carbon superlattice structure; RF plasma source; XRD measurements; amorphous carbon; amorphous carbon layers; carbon-based superlattice structure solar cell; conductivity control; impurity doping; light absorption enhancement; nitrogen doping effects; nitrogen ion bombardment; periodic structure; quantum size effects; Absorption; Amorphous materials; Conductivity; Doping; Nitrogen; Periodic structures; Photovoltaic cells; Plasma sources; Radio frequency; Superlattices;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference, 2000. Conference Record of the Twenty-Eighth IEEE

Conference_Location

Anchorage, AK

ISSN

0160-8371

Print_ISBN

0-7803-5772-8

Type

conf

DOI

10.1109/PVSC.2000.916022

Filename

916022