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Research Article

Organic–inorganic bismuth (Ⅲ)-based material: A lead-free, air-stable and solution-processable light-absorber beyond organolead perovskites

Miaoqiang Lyu1Jung-Ho Yun1Molang Cai2Yalong Jiao2Paul V. Bernhardt3Meng Zhang1Qiong Wang1Aijun Du2Hongxia Wang2Gang Liu4Lianzhou Wang1( )
Nanomaterials CentreSchool of Chemical Engineering and AIBNThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
School of ChemistryPhysics and Mechanical EngineeringScience and Engineering FacultyQueensland University of TechnologyBrisbaneQLD4001Australia
School of Chemistry and Molecular BiosciencesThe University of QueenslandBrisbane4072Australia
Advanced Carbon DivisionInstitute of Metal Research Chinese Academy of Sciences (IMR CAS)72 Wenhua RoadShenyang110016China
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Graphical Abstract


Methylammonium bismuth (Ⅲ) iodide single crystals and films have been developed and investigated. We have further presented the first demonstration of using this organic–inorganic bismuth-based material to replace lead/tin-based perovskite materials in solution-processable solar cells. The organic–inorganic bismuth-based material has advantages of non-toxicity, ambient stability, and low-temperature solution-processability, which provides a promising solution to address the toxicity and stability challenges in organolead- and organotin-based perovskite solar cells. We also demonstrated that trivalent metal cation-based organic–inorganic hybrid materials can exhibit photovoltaic effect, which may inspire more research work on developing and applying organic-inorganic hybrid materials beyond divalent metal cations (Pb (Ⅱ) and Sn (Ⅱ)) for solar energy applications.

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Nano Research
Pages 692-702
Cite this article:
Lyu M, Yun J-H, Cai M, et al. Organic–inorganic bismuth (Ⅲ)-based material: A lead-free, air-stable and solution-processable light-absorber beyond organolead perovskites. Nano Research, 2016, 9(3): 692-702.
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Received: 23 June 2015
Revised: 15 November 2015
Accepted: 17 November 2015
Published: 09 January 2016
© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2015