4.7 Review

Lead-free metal-halide double perovskites: from optoelectronic properties to applications

Journal

NANOPHOTONICS
Volume 10, Issue 8, Pages 2181-2219

Publisher

WALTER DE GRUYTER GMBH
DOI: 10.1515/nanoph-2020-0548

Keywords

lead-free; metal-halide double perovskites; optoelectronic properties; photovoltaics; stability

Funding

  1. Australia Research Council [DP190103186, DP190103284]
  2. Industrial Transformation Training Centres scheme [IC180100005]

Ask authors/readers for more resources

Lead halide perovskites have shown promising optoelectronic properties in various applications, but the toxicity of lead and instability of compounds are major obstacles. Metal-halide double perovskites, being non-toxic and stable, are emerging as potential alternatives. Their tunable optoelectronic properties and rich combinatorial chemistry make them highly suitable for a wide range of optoelectronic/electronic applications.
Lead (Pb) halide perovskites have witnessed highly promising achievements for high-efficiency solar cells, light-emitting diodes (LEDs), and photo/radiation detectors due to their exceptional optoelectronic properties. However, compound stability and Pb toxicity are still two main obstacles towards the commercialization of halide perovskite-based devices. Therefore, it is of substantial interest to search for non-toxic candidates with comparable photophysical characteristics. Metal-halide double perovskites (MHDPs), A(2)BB'X-6, are recently booming as promising alternatives for Pb-based halide-perovskites for their non-toxicity and significantly enhanced chemical and thermodynamic stability. Moreover, this family exhibits rich combinatorial chemistry with tuneable optoelectronic properties and thus a great potential for a broad range of optoelectronic/electronic applications. Herein, we present a comprehensive review of the MHDPs synthesized so far, and classified by their optical and electronic properties. We systematically generalize their electronic structure by both theoretical and experimental efforts to prospect the relevant optoelectronic properties required by different applications. The progress of the materials in various applications is explicated in view of the material structure-function relationship. Finally, a perspective outlook to improve the physical and optoelectronic properties of the materials is proposed aiming at fostering their future development and applications.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available