The significance of substrate surfaces in flexible thin film CdTe solar cells fabrication

M. Mannir Aliyu, N. R. Hamzah, Aminul Islam, M. A. Matin, R. Karim, Kamaruzzaman Sopian, Nowshad Amin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Thin film CdTe solar cells have been recognized as reliable alternative for the manufacturing of cost effecient photovoltaic solar cells of the future, due to its excellent absorber characteristics and simple, low-cost manufacturability. However, for the attainment of higher cell performances, additional studies are needed to increase cell efficiency through further development of better quality films and new fabrication processes. In substrate-structured CdTe thin film solar cells, the CdTe absorber is deposited directly onto the substrate or through a back contact layer. But the quality of deposited film is believed to depend on the type and smoothness of the substrate. In this work CdTe was deposited on different substrates by RF sputtering and the effects on the deposited films were studied in terms of their structural and morphological forms. The substrates used are pure molybdenum sheets (Mo), molybdenum-sputtered molybdenum (Mo/Mo), molybdenum-sputtered polyimide (PI/Mo) and molybdenum-sputtered glass (glass/Mo). The characterization tools used include XRD, SEM and AFM. The results show that all surfaces produced uniform, compact and pinhole free films; however, those on smoother surfaces produced larger as-deposited grain sizes of up to1.7μm as against 1.3 for rougher surfaces. Non-uniformities such as overgrowth and voids were observed, but only films on PI showed evidence of cracking and peel-offs.

Original languageEnglish
Title of host publicationProceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012
Pages13-16
Number of pages4
Publication statusPublished - 2012
Event2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012 - Dhaka
Duration: 5 Jan 20127 Jan 2012

Other

Other2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012
CityDhaka
Period5/1/127/1/12

Fingerprint

Molybdenum
Fabrication
Substrates
Glass
Polyimides
Sputtering
Costs
Solar cells
Thin film solar cells
Scanning electron microscopy

Keywords

  • CdTe
  • molybdenum
  • polyimide
  • substrate
  • surface roughness
  • thin film

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

Aliyu, M. M., Hamzah, N. R., Islam, A., Matin, M. A., Karim, R., Sopian, K., & Amin, N. (2012). The significance of substrate surfaces in flexible thin film CdTe solar cells fabrication. In Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012 (pp. 13-16). [6153475]

The significance of substrate surfaces in flexible thin film CdTe solar cells fabrication. / Aliyu, M. Mannir; Hamzah, N. R.; Islam, Aminul; Matin, M. A.; Karim, R.; Sopian, Kamaruzzaman; Amin, Nowshad.

Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012. 2012. p. 13-16 6153475.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aliyu, MM, Hamzah, NR, Islam, A, Matin, MA, Karim, R, Sopian, K & Amin, N 2012, The significance of substrate surfaces in flexible thin film CdTe solar cells fabrication. in Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012., 6153475, pp. 13-16, 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012, Dhaka, 5/1/12.
Aliyu MM, Hamzah NR, Islam A, Matin MA, Karim R, Sopian K et al. The significance of substrate surfaces in flexible thin film CdTe solar cells fabrication. In Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012. 2012. p. 13-16. 6153475
Aliyu, M. Mannir ; Hamzah, N. R. ; Islam, Aminul ; Matin, M. A. ; Karim, R. ; Sopian, Kamaruzzaman ; Amin, Nowshad. / The significance of substrate surfaces in flexible thin film CdTe solar cells fabrication. Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012. 2012. pp. 13-16
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