Gas chromatography-mass spectrometry analyses of encapsulated stable perovskite solar cells

Lei Shi; Martin P Bucknall; Trevor L Young; Meng Zhang; Long Hu; Jueming Bing; Da Seul Lee; Jincheol Kim; Tom Wu; Noboru Takamure; David R McKenzie; Shujuan Huang; Martin A Green; Anita W Y Ho-Baillie

doi:10.1126/science.aba2412

Gas chromatography-mass spectrometry analyses of encapsulated stable perovskite solar cells

Science. 2020 Jun 19;368(6497):eaba2412. doi: 10.1126/science.aba2412. Epub 2020 May 21.

Authors

Lei Shi¹, Martin P Bucknall^{2

3}, Trevor L Young⁴, Meng Zhang^{4

5}, Long Hu⁶, Jueming Bing^{4

7

8}, Da Seul Lee⁴, Jincheol Kim^{4

9}, Tom Wu⁶, Noboru Takamure⁷, David R McKenzie⁷, Shujuan Huang^{4

10}, Martin A Green⁴, Anita W Y Ho-Baillie^{1

7

8}

Affiliations

¹ Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia. anita.ho-baillie@sydney.edu.au lei.shi@unsw.edu.au.
² Bioanalytical Mass Spectrometry Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia.
³ School of Optometry and Vision Science, University of New South Wales, Sydney, NSW 2052, Australia.
⁴ Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia.
⁵ Institute of Photovoltaics, Southwest Petroleum University, Chengdu 610500, China.
⁶ School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia.
⁷ School of Physics, University of Sydney, Sydney, NSW 2006, Australia.
⁸ University of Sydney Nano Institute, University of Sydney, Sydney, NSW 2006, Australia.
⁹ New and Renewable Energy Research Center, Korea Electronics Technology Institute, Seong-Nam, Republic of Korea.
¹⁰ School of Engineering, Macquarie University, Sydney, NSW 2109, Australia.

PMID: 32439657
DOI: 10.1126/science.aba2412

Abstract

Although perovskite solar cells have produced remarkable energy conversion efficiencies, they cannot become commercially viable without improvements in durability. We used gas chromatography-mass spectrometry (GC-MS) to reveal signature volatile products of the decomposition of organic hybrid perovskites under thermal stress. In addition, we were able to use GC-MS to confirm that a low-cost polymer/glass stack encapsulation is effective in suppressing such outgassing. Using such an encapsulation scheme, we produced multi-cation, multi-halide perovskite solar cells containing methylammonium that exceed the requirements of the International Electrotechnical Commission 61215:2016 standard by surviving more than 1800 hours of the Damp Heat test and 75 cycles of the Humidity Freeze test.

Publication types

Research Support, Non-U.S. Gov't