New designed electrode patterns on rear side of bifacial PERC solar cells

Yu Hsuan Lin*, Li Yu Li, Sung Yu Chen, Shih Peng Hsu, Yu Shen Chen, Tzu Huan Cheng, Chun Ping Chen, Peichen Yu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we demonstrate new electrode pattern on rear side of p-type bifacial passivated emitter and rear cells (bifacial-PERC) solar cells for reducing series resistance loss caused by the aluminum grid lines. Cell efficiency of bifacial PERC is enhanced by rear Al grids add multi bus-bar (MBB) or grid segments interconnection. The high Jsc and FF value of the PERC+ using local grid with MBB as rear electrodes which increases the Jsc by 0.5 mA/cm2 and FF by 2.58 % compare to the PERC+ without rear MBB. The high Jsc and FF value of the PERC+ using local grid with vertical line segments as rear electrodes which increases the Jsc by 0.34 mA/cm2 and FF by 3.6 % compare to the PERC+ without vertical line segments. In contrast to the PERC cell, the bifacial PERC cell using localized Al grid on rear side and with thicker back surface field (BSF).

Original languageEnglish
Title of host publication2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1124-1126
Number of pages3
ISBN (Electronic)9781728104942
DOIs
StatePublished - Jun 2019
Event46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States
Duration: 16 Jun 201921 Jun 2019

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Conference

Conference46th IEEE Photovoltaic Specialists Conference, PVSC 2019
CountryUnited States
CityChicago
Period16/06/1921/06/19

Keywords

  • back surface field
  • bifacial
  • contact formation
  • MBB
  • passivated emitter rear contact (PERC) solar cells
  • PERC+

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