Grant, Nicholas E., Niewelt, Tim, Wilson, Neil R., Wheeler-Jones, Evé, Bullock, James, Al-Amin, Mohammad, Schubert, Martin C., van Veen, André C., Javey, Ali and Murphy, John D. (2017) Data for Superacid-Treated Silicon Surfaces: Extending the Limit of Carrier Lifetime for Photovoltaic Applications. [Dataset]

	Microsoft Excel (Data behind all graphs presented in the related paper) 2017-09-15 Dataset for WRAP.xlsx Available under License Creative Commons Attribution 4.0. Download (75Kb)
	Plain Text (Readme file) 2017-09-15 readme file for WRAP.txt Available under License Creative Commons Attribution 4.0. Download (780b)

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Abstract

Minimizing carrier recombination at interfaces is of extreme importance in the development of high-efficiency photovoltaic devices and for bulk material characterization. Here, we investigate a temporary room temperature superacid-based passivation scheme, which provides surface recombination velocities below 1 cm/s, thus placing our passivation scheme amongst state-of-the-art dielectric films. Application of the technique to high-quality float-zone silicon allows the currently accepted intrinsic carrier lifetime limit to be reached and calls its current parameterization into doubt for 1 Ω·cm n-type wafers. The passivation also enables lifetimes up to 65 ms to be measured in high-resistivity Czochralski silicon, which, to our knowledge, is the highest ever measured in Czochralski-grown material. The passivation strategies developed in this work will help diagnose bulk lifetime degradation under solar cell processing conditions and also help quantify the electronic quality of new passivation schemes

Item Type:	Dataset
Subjects:	Q Science > QD Chemistry 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):	Superacids, Photovoltaic power generation, Silicon crystals
Publisher:	University of Warwick, School of Engineering
Official Date:	15 September 2017
Dates:	Date Event 15 September 2017 Published
Status:	Not Peer Reviewed
Access rights to Published version:	Open Access (Creative Commons)
Description:	The dataset (a single file in XLSX format) contains the data behind all the graphs presented in the paper. Each worksheet within the spreadsheet relates to a single figure in the paper. Captions to the figures are given in the paper. Abbreviations, variables and methods used are defined in the paper.
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID EP/M024911/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 EP/P511079/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 EP/J01768X/2 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 RG100076 Royal Society http://dx.doi.org/10.13039/501100000288
Related URLs:	Related item in WRAP
Contributors:	Contribution Name Contributor ID Depositor Murphy, John D. 55925

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