Analysis optical contribution of rear passivation layer to photo- generated current of silicon solar cell with numerical simulation

Sujeong Jeong, Soo Min Kim, Soohyun Bae, Yoon Mook Kang, Haeseok Lee, Donghwan Kim

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

Abstract

For high efficiency solar cell, both side of passivation layer is necessary for achieving high open circuit voltage. Generally, passivation layer reduces recombination site of silicon surface, thereby increasing lifetime of carriers. Also, in case of front passivation layer, it reduces reflectance so light could be more absorbed to Si substrate than without passivation layer. On the other side, rear side of solar cell, rear metal electrode is located which is highly reflective. So, it is difficult to experimentally demonstrate optical contributions of rear passivation layer. In this paper, using numerical optic simulation which based on transfer matrix method, we calculate reflectance of solar cell which have rear passivation layers. For improving light trapping effects in solar cell. We design two different solar cell structures which have different type of rear passivation layer. Single layer structure consists only two rear passivation layers in rear side of solar cell. Multiple layer structure consists of repeated two different thin oxide layer 12 times. We calculate reflectance of two structures with simulation tool and compare the optical effect of rear passivation layers. Through this, we can optimize the condition of rear passivation layer for highest efficiency.

Original languageEnglish
Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3187-3189
Number of pages3
ISBN (Electronic)9781538685297
DOIs
Publication statusPublished - 2018 Nov 26
Event7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States
Duration: 2018 Jun 102018 Jun 15

Other

Other7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
CountryUnited States
CityWaikoloa Village
Period18/6/1018/6/15

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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    Jeong, S., Kim, S. M., Bae, S., Kang, Y. M., Lee, H., & Kim, D. (2018). Analysis optical contribution of rear passivation layer to photo- generated current of silicon solar cell with numerical simulation. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC (pp. 3187-3189). [8547619] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2018.8547619