Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Data for Lifetime instabilities in gallium doped monocrystalline PERC silicon solar cells

Tools
- Tools
+ Tools

Grant, Nicholas E., Scowcroft, Jennifer R., Pointon, A. I., Al-Amin, Mohammad, Altermatt, Pietro P. and Murphy, John D. (2019) Data for Lifetime instabilities in gallium doped monocrystalline PERC silicon solar cells. [Dataset]

[img] Microsoft Excel (Experimental data in spreadsheet)
2019-11-14 Open access dataset.xlsx - Published Version
Available under License Creative Commons Attribution 4.0.

Download (33Kb)
[img] Plain Text (Readme file)
2019-11-15 readme text for WRAP.txt - Published Version
Available under License Creative Commons Attribution 4.0.

Download (621b)

Request Changes to record.

Abstract

Gallium doped silicon is an industrially viable alternative to boron doped silicon for photovoltaics, and is assumed to be immune from light-induced degradation. We have studied light soaking for >1000 h of industrially fabricated passivated emitter and rear cell (PERC) devices formed from monocrystalline gallium and boron doped substrates, with cell properties monitored using a non-contact photoluminescence imaging proxy method. As-fabricated stabilised boron doped cells did not degrade or underwent a slight improvement, whereas as-fabricated gallium doped cells which had not been intentionally stabilised experienced a slight (~5%) deterioration which then recovered. When PERC devices were subjected to a 200–300 °C dark anneal before light soaking, significant differences in the cell degradation signatures were observed. Degradation characteristic of light and elevated temperature induced degradation (LeTID) was observed for boron and gallium PERC solar cells, with the onset of degradation taking longer, and the severity being less, with gallium. Investigation of stripped gallium PERC devices with room temperature surface passivation revealed bulk lifetime degradation correlates with the cell-level degradation. When the cells were stripped and passivated with aluminium oxide, a complete change in the degradation behaviour was observed, with no degradation occurring in the gallium case and boron-oxygen-like degradation observed for boron. This indicates that dielectric passivation is not suitable for lifetime degradation diagnosis in stripped cells. Gallium retains advantages over boron doping with stabilisation processes not generally required, but manufacturers need to be aware of possible low-temperature lifetime instabilities when developing future fabrication processes, such as for passivated contact structures.

Item Type: Dataset
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Type of Data: Experimental data
Library of Congress Subject Headings (LCSH): Semiconductors -- Materials, Gallium nitride -- Electric properties, Solar cells -- Design and construction, Gallium -- Synthesis, Silicon solar cells, Direct energy conversion -- Research
Publisher: University of Warwick, School of Engineering
Official Date: 15 November 2019
Dates:
DateEvent
15 November 2019Published
14 November 2019Available
Status: Not Peer Reviewed
Publication Status: Published
Media of Output (format): .txt, .xlsx
Access rights to Published version: Open Access (Creative Commons)
Copyright Holders: University of Warwick
Description:

The dataset (a single file in XLSX format) contains the data behind the figures in the related paper. Captions to the figures are given in the paper. Abbreviations, variables and methods used are defined in the paper.

Date of first compliant deposit: 15 November 2019
Date of first compliant Open Access: 15 November 2019
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/M024911/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/R511808/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/J01768X/2[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/N509796/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
Related URLs:
  • Other
  • Related item in WRAP
Contributors:
ContributionNameContributor ID
DepositorMurphy, John D.55925

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us