Detailed analysis of shallow and heavily-doped emitters for Al-BSF bifacial solar cells

Suhaila Sepeai, Saleem H. Zaidi, M. Y. Sulaiman, Kamaruzzaman Sopian, Mohd. Adib Ibrahim, M. K M Desa, M. D. Norizam

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

Abstract

A selective emitter structure is a promising approach to improve the cell efficiency of industrial type silicon solar cells by minimizing the losses at the front surface and in the emitter. Selective emitters can be produced by numerous processing sequences, resulting in different doping profiles. This paper focuses on the analysis of emitter formation for bifacial solar cell application. In this research, liquid phosphorus oxy-trichloride (POCl3) has been used as a diffusion source for emitter formation. The diffusion temperature was varied from 800 to 900 °C in order to determine an optimum diffusion profile. In this study, the mask-free diffusion process forms diffused emitter on both side of Si wafer. In order to determine the emitter characteristics, the sheet resistance of Si wafer after POCl3 diffusion process was measured using a four-point probe. Based on the sheet resistance value of ~47 ohm/sq, the emitter has been classified as heavily-doped emitter. The performance analysis using surface photovoltage (SPV) and spectral response presents a diffusion length of 2.19 μm. The POCl3-diffusion and screen printed Al-BSF led to bifacial solar cells with a front surface efficiency of 12.8% and back surface efficiency of 5.08%.

Original languageEnglish
Title of host publicationAdvanced Materials Research
PublisherTrans Tech Publications
Pages459-463
Number of pages5
Volume896
ISBN (Print)9783038350316
DOIs
Publication statusPublished - 2014
Event2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013 - Yogyakarta
Duration: 17 Sep 201318 Sep 2013

Publication series

NameAdvanced Materials Research
Volume896
ISSN (Print)10226680

Other

Other2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013
CityYogyakarta
Period17/9/1318/9/13

Fingerprint

Solar cells
Sheet resistance
Silicon solar cells
Surface analysis
Phosphorus
Masks
Doping (additives)
Liquids
Processing
Temperature

Keywords

  • Bifacial solar cell
  • Diffusion length
  • Emitter
  • Sheet resistance
  • Surface photovoltage

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Sepeai, S., Zaidi, S. H., Sulaiman, M. Y., Sopian, K., Ibrahim, M. A., Desa, M. K. M., & Norizam, M. D. (2014). Detailed analysis of shallow and heavily-doped emitters for Al-BSF bifacial solar cells. In Advanced Materials Research (Vol. 896, pp. 459-463). (Advanced Materials Research; Vol. 896). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/AMR.896.459

Detailed analysis of shallow and heavily-doped emitters for Al-BSF bifacial solar cells. / Sepeai, Suhaila; Zaidi, Saleem H.; Sulaiman, M. Y.; Sopian, Kamaruzzaman; Ibrahim, Mohd. Adib; Desa, M. K M; Norizam, M. D.

Advanced Materials Research. Vol. 896 Trans Tech Publications, 2014. p. 459-463 (Advanced Materials Research; Vol. 896).

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

Sepeai, S, Zaidi, SH, Sulaiman, MY, Sopian, K, Ibrahim, MA, Desa, MKM & Norizam, MD 2014, Detailed analysis of shallow and heavily-doped emitters for Al-BSF bifacial solar cells. in Advanced Materials Research. vol. 896, Advanced Materials Research, vol. 896, Trans Tech Publications, pp. 459-463, 2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013, Yogyakarta, 17/9/13. https://doi.org/10.4028/www.scientific.net/AMR.896.459
Sepeai S, Zaidi SH, Sulaiman MY, Sopian K, Ibrahim MA, Desa MKM et al. Detailed analysis of shallow and heavily-doped emitters for Al-BSF bifacial solar cells. In Advanced Materials Research. Vol. 896. Trans Tech Publications. 2014. p. 459-463. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.896.459
Sepeai, Suhaila ; Zaidi, Saleem H. ; Sulaiman, M. Y. ; Sopian, Kamaruzzaman ; Ibrahim, Mohd. Adib ; Desa, M. K M ; Norizam, M. D. / Detailed analysis of shallow and heavily-doped emitters for Al-BSF bifacial solar cells. Advanced Materials Research. Vol. 896 Trans Tech Publications, 2014. pp. 459-463 (Advanced Materials Research).
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