An extendible beyond 20% efficiency cost-efficient bifacial cell using boron & phosphorus implantation technology and its prospects for the future production

Haibing Huang, Jun Lv, Lichun Wang, Jianbo Wang, Weicheng Zhu, Lisa Mandrell, Jim Sullivan, Babak Adibi, Chris Smith, Hannu Laine, Hele Savin

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

2 Citations (Scopus)

Abstract

This paper presents an extendible beyond 20% efficiency cost-efficient roadmap for bifacial solar cell, which is suitable to both p-type and n-type substrate. The roadmap is based on boron & phosphorus implantation and screen print technology. We experimentally demonstrate here bifacial cells using industrial p-type c-Si substrate with front side efficiency of 20% and rear side efficiency of 16-16.5%. Due to the bifacial generation of electricity, these cells are expected to perform at high effective efficiency under various environments with different ground reflectance. Furthermore, very high quality boron implanted emitter with emitter saturation current as low as 5E-15 Acm-2 and open circuit voltage above 655 mV was obtained, which demonstrates the potential of implantation technology for the production of also other high efficiency cell architectures.

Original languageEnglish
Title of host publication2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
PublisherIEEE
ISBN (Electronic)9781479979448
DOIs
Publication statusPublished - 14 Dec 2015
MoE publication typeA4 Conference publication
EventIEEE Photovoltaic Specialist Conference - New Orleans, United States
Duration: 14 Jun 201519 Jun 2015
Conference number: 42

Conference

ConferenceIEEE Photovoltaic Specialist Conference
Abbreviated titlePVSC
Country/TerritoryUnited States
CityNew Orleans
Period14/06/201519/06/2015

Keywords

  • boron and phosphorus implantation
  • c-Si cell
  • costefficient bifacial cell
  • post implantation anneal
  • surface passivation

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