Surface morphological and electrical characterization of thin film CdSe/P3HT composite layer for bulk hetero-junction solar cells

Author

Truong, Nguyen Tam Nguyen ; Farva, Umme ; Park, Chinho

Author_Institution

School of Display and Chemical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea

fYear

2008

fDate

11-16 May 2008

Firstpage

1

Lastpage

3

Abstract

A blend of cadmium selenide quantum dots with conjugated polymer poly (3-hexylthiophene-2,5-diyl) (P3HT) was investigated as an active layer for the bulk hetero- junction solar cell. The surface morphology of composite active layer was controlled and investigated in relation to the bulk hetero-junction solar cell performance. Use of a binary solvent was intensively studied to improve the surface morphology. Smooth and uniform active layer surface could be obtained at optimum binary solvent composition with controlled drying process. The active layer sheet resistance was measured by using the transmission line method (TLM), and it was found that the percolation pathway for charge carrier transport could be developed above the threshold CdSe loading concentration

Keywords

Cadmium compounds; Current measurement; Photovoltaic cells; Polymer films; Process control; Quantum dots; Solvents; Surface morphology; Surface resistance; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference, 2008. PVSC '08. 33rd IEEE

Conference_Location

San Diego, CA, USA

ISSN

0160-8371

Print_ISBN

978-1-4244-1640-0

Electronic_ISBN

0160-8371

Type

conf

DOI

10.1109/PVSC.2008.4922666

Filename

4922666