Fabrication of Monolithic Silicon Heterojunction Solar Cells

Apoorva Srinivasa, Shujian Xue, Stuart Bowden

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

2 Scopus citations


The integration of multiple solar cells in series on a single wafer increases the output voltage and reduces the output current, thereby reducing I2R power losses. With this concept we can power small appliances with a single wafer. We successfully fabricated monolithic cells with two silicon heterojunction cells of opposite polarity isolated by spacing them apart on a single wafer. When connected in series, 1.4 V open circuit voltage (VOC) and over 1.1 V as voltage at maximum power point (VMP) are obtained from a single wafer. Further optimization of this device with a few design modifications discussed can give much higher voltages with lower power losses making this design very suitable to power small appliances.

Original languageEnglish (US)
Title of host publication2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages3
ISBN (Electronic)9781728161150
StatePublished - Jun 14 2020
Event47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada
Duration: Jun 15 2020Aug 21 2020

Publication series

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


Conference47th IEEE Photovoltaic Specialists Conference, PVSC 2020


  • SHJ cells
  • high resistivity substrate
  • high voltage
  • monolithic solar cells
  • series connected

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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