Journal Article10.1039/C5TA05741H
Lead-free germanium iodide perovskite materials for photovoltaic applications
Thirumal Krishnamoorthy,Hong Ding,Chen Yan,Wei Lin Leong,Tom Baikie,Ziyi Zhang,Matthew Sherburne,Shuzhou Li,Mark Asta,Nripan Mathews,Nripan Mathews,Subodh Mhaisalkar +11 more
TL;DR: In this paper, a computational screening based on density-functional-theory calculations reveals Ge as a candidate element for replacing Pb in halide perovskite compounds suitable for light harvesting.
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Abstract: Computational screening based on density-functional-theory calculations reveals Ge as a candidate element for replacing Pb in halide perovskite compounds suitable for light harvesting. Experimentally, three AGeI3 (A = Cs, CH3NH3 or HC(NH2)2) halide perovskite materials have been synthesized. These compounds are stable up to 150 °C, and have bandgaps correlated with the A-site cation size. CsGeI3-based solar cells display higher photocurrents, of about 6 mA cm−2, but are limited by poor film forming abilities and oxidising tendencies. The present results demonstrate the utility of combining computational screening and experimental efforts to develop lead-free halide perovskite compounds for photovoltaic applications.
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Citations
Combining theory and experiment in the design of a lead-free ((CH3NH3)2AgBiI6) double perovskite
Pengfei Cheng,Pengfei Cheng,Tao Wu,Tao Wu,Yajuan Li,Yajuan Li,Lei Jiang,Wei-Qiao Deng,Ke-Li Han +8 more
TL;DR: In this article, a lead-free double perovskite (CH3NH3)2AgBiI6) was synthesized and its electronic structure and optical properties using a combination of experiment and density functional theory.
83
Brief review of emerging photovoltaic absorbers
TL;DR: In this paper, the authors briefly review emerging photovoltaic absorber materials, focusing on research progress over the past two-and three-year period, and give particular emphasis to emerging solar cell absorbers related to established solar cell technologies.
82
Recent processes on light-emitting lead-free metal halide perovskites
Tongtong Xuan,Rong-Jun Xie +1 more
TL;DR: In this article, a review of recent processes on the synthetic method, type, structure, morphology, and optical properties of LFMHPs with a strict perovskite structure as well as on their stabilities against water, light, or heat.
82
Recent Advances and Opportunities of Lead-Free Perovskite Nanocrystal for Optoelectronic Application
Fei Zhang,Zhuangzhuang Ma,Zhifeng Shi,Xu Chen,Di Wu,Xinjian Li,Chongxin Shan +6 more
- 05 Feb 2021
TL;DR: A comprehensive overview of currently explored lead-free perovskite nanocrystals with an emphasis on their design routes, morphologies, optoelectronic properties, and environmental stability issues is presented in this article.
Photorechargeable Lead-Free Perovskite Lithium-Ion Batteries Using Hexagonal Cs3Bi2I9 Nanosheets.
TL;DR: In this paper, a lead-free, all-inorganic, bismuth-based perovskite halide was used as a photoelectrode that can harvest energy under illumination without the assistance of an external load in a lithium-ion battery.
81
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