Modification of BSF layer in bifacial solar cell via photosensitization of molecules nanostructure

Research output: Contribution to journalArticle

Abstract

Surface passivation is the most significant step to keep the recombination loss at a tolerable minimum and avoid an unacceptably large efficiency loss when moving towards thinner silicon material. In this study, the modification and photosensitization on back surface field (BSF) of bifacial solar cell was investigated by using dye molecules nanostructure namely DiO. The DiO dye molecules nanostructure was passivated on SiNW and BSF layers using spin-coating method. The energy gaps of DiO dye are 2.14 eV (DiO in chloroform), 2.13 eV (DiO on silicon nanowire (SiNW)) and 2.12 eV (DiO on BSF). The time resolved photoluminescence increased with the DiO dye coated on SiNW (τ= 1.24 nm) and BSF layers (τ= 0.93 nm) compared to DiO dye in chloroform (τ= 0.54 nm). The light trapping inside the interface layers of DiO dye/silicon indicating a slow process of charge recombination before its reach equilibrium states, it is due to interface interaction bonding within boundary layers and dye molecules nanostructure. The short circuit current density also increased about 25% from 4.44 to 5.56 mA/cm2 when applying the dye molecules nanostructure on BSF of the cell. Collection of photo carrier lead of internal and external quantum efficiency improved about 19% and 25%, respectively, is mainly due to energy transported to the junction. The photo-generated electron on DiO dye lead to improvement in the exciton dissociation efficiency leading to increase in the electrical properties.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalJurnal Teknologi
Volume78
Issue number6-7
DOIs
Publication statusPublished - 2016

Fingerprint

Nanostructures
Solar cells
Dyes
Molecules
Silicon
Nanowires
Chlorine compounds
Spin coating
Quantum efficiency
Passivation
Excitons
Short circuit currents
Photoluminescence
Boundary layers
Electric properties
Energy gap
Current density
Electrons

Keywords

  • Back surface field
  • Bifacial solar cell
  • Molecules nanostructure
  • Quantum efficiency
  • Time resolved photoluminescence

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Modification of BSF layer in bifacial solar cell via photosensitization of molecules nanostructure. / Sinin, Nurul Aqidah Mohd; Ibrahim, Mohd. Adib; Sepeai, Suhaila; Sulaiman, Mohamad Yusof; Mat Teridi, Mohd Asri; Ahmad Ludin, Norasikin; Zaidi, Saleem H.

In: Jurnal Teknologi, Vol. 78, No. 6-7, 2016, p. 109-114.

Research output: Contribution to journalArticle

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AU - Sinin, Nurul Aqidah Mohd

AU - Ibrahim, Mohd. Adib

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AU - Sulaiman, Mohamad Yusof

AU - Mat Teridi, Mohd Asri

AU - Ahmad Ludin, Norasikin

AU - Zaidi, Saleem H.

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