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Title: Investigating the feasibility of symmetric guanidinium based plumbate perovskites in prototype solar cell devices
Authors: Kulkarni, Sneha Avinash
Baikie, Tom
Muduli, Subas
Potter, Rob
Chen, Shi
Yanan, Fanan
Bishop, Peter
Lim, Swee Sien
Sum, Tze Chien
Mathews, Nripan
White, Tim J.
Keywords: Engineering::Materials
Issue Date: 2017
Source: Kulkarni, S. A., Baikie, T., Muduli, S., Potter, R., Chen, S., Yanan, F., . . . White, T. J. (2017). Investigating the feasibility of symmetric guanidinium based plumbate perovskites in prototype solar cell devices. Japanese Journal of Applied Physics, 56(8), 08MC05-. doi:10.7567/jjap.56.08mc05
Abstract: In this work we have studied the feasibility of highly symmetric guanidinium (GA; CH6N3+) cation in perovskite based solar cells. It is an alternative to the methyl ammonium (MA; CH3NH3+) or formamidinium (FA; CH(NH2)2+) ions commonly utilized in the perovskite solar cells, may bring additional advantages due to its triad rotational symmetry and zero dipole moment (μ). We noticed that due to steric factors, GA preferably forms two-dimensional (2D) layer, where GA2PbI4 is favored monoclinic structure (E g = 2.5 eV) and the obtained device efficiency is η = 0.45%. This study provides a guideline for designing guanidinium based perovskite absorbers for solar cell devices. In addition, through further compositional engineering with mixed organic cations using GA may enhance the device performance.
DOI: 10.7567/JJAP.56.08MC05
Schools: School of Materials Science and Engineering 
School of Physical and Mathematical Sciences 
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Rights: © 2017 The Japan Society of Applied Physics. All rights reserved. This paper was published in Japanese Journal of Applied Physics and is made available with permission of The Japan Society of Applied Physics.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ERI@N Conference Papers

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