Two-dimensional lead-free halide perovskite materials and devices

2019 ◽  
Vol 7 (41) ◽  
pp. 23563-23576 ◽  
Author(s):  
Jie Wang ◽  
Jianchao Dong ◽  
Feifei Lu ◽  
Chenglin Sun ◽  
Qichun Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Emitting Diodes ◽  
Lead Free ◽  
Two Dimensional ◽  
Light Emitting ◽  
Perovskite Materials ◽  
Halide Perovskite

The progresses, challenges, and perspectives on emerging 2D lead-free halide perovskite materials and relevant light-emitting diodes/solar cells have been elaborately summarized.

Quasi-2D lead-free halide perovskite using superalkali cations for red-light-emitting diodes

Nanoscale ◽  
2021 ◽  
Author(s):  
Tingwei Zhou ◽  
Anlong Kuang
Keyword(s):  
Light Emitting Diodes ◽  
Red Light ◽  
Lead Free ◽  
Two Dimensional ◽  
Light Emitting ◽  
Halide Perovskites ◽  
Halide Perovskite

Two dimensional halide perovskites have attracted intense attention, but there is no study to consider the quasi-2D lead-free perovskites with superalkali cations as potential emitting materials. Herein, the quasi-2D [C6H5(CH2)2NH3]2H5O2Sn2Br7...

scholarly journals Lead-Free Halide Double Perovskites: A Review of the Structural, Optical, and Stability Properties as Well as Their Viability to Replace Lead Halide Perovskites

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 667 ◽  
Author(s):  
Edson Meyer ◽  
Dorcas Mutukwa ◽  
Nyengerai Zingwe ◽  
Raymond Taziwa
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Lead Free ◽  
Double Perovskites ◽  
Stability Properties ◽  
Perovskite Materials ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Light Absorbers ◽  
Lead Halide

Perovskite solar cells employ lead halide perovskite materials as light absorbers. These perovskite materials have shown exceptional optoelectronic properties, making perovskite solar cells a fast-growing solar technology. Perovskite solar cells have achieved a record efficiency of over 20%, which has superseded the efficiency of Gräztel dye-sensitized solar cell (DSSC) technology. Even with their exceptional optical and electric properties, lead halide perovskites suffer from poor stability. They degrade when exposed to moisture, heat, and UV radiation, which has hindered their commercialization. Moreover, halide perovskite materials consist of lead, which is toxic. Thus, exposure to these materials leads to detrimental effects on human health. Halide double perovskites with A2B′B″X6 (A = Cs, MA; B′ = Bi, Sb; B″ = Cu, Ag, and X = Cl, Br, I) have been investigated as potential replacements of lead halide perovskites. This work focuses on providing a detailed review of the structural, optical, and stability properties of these proposed perovskites as well as their viability to replace lead halide perovskites. The triumphs and challenges of the proposed lead-free A2B′B″X6 double perovskites are discussed here in detail.

Improving the Stability of Metal Halide Perovskite Materials and Light-Emitting Diodes

2018 ◽  
Vol 30 (42) ◽  
pp. 1704587 ◽  
Author(s):  
Himchan Cho ◽  
Young-Hoon Kim ◽  
Christoph Wolf ◽  
Hyeon-Dong Lee ◽  
Tae-Woo Lee
Keyword(s):  
Light Emitting Diodes ◽  
Metal Halide ◽  
Light Emitting ◽  
Perovskite Materials ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
The Stability

scholarly journals Advances and Challenges in Two-Dimensional Organic–Inorganic Hybrid Perovskites Toward High-Performance Light-Emitting Diodes

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Miao Ren ◽  
Sheng Cao ◽  
Jialong Zhao ◽  
Bingsuo Zou ◽  
Ruosheng Zeng
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Structural Diversity ◽  
Two Dimensional ◽  
Light Emitting ◽  
Quantum Well Structures ◽  
Perovskite Materials ◽  
Energy Funnel ◽  
Recent Developments ◽  
Low Efficiency

AbstractTwo-dimensional (2D) perovskites are known as one of the most promising luminescent materials due to their structural diversity and outstanding optoelectronic properties. Compared with 3D perovskites, 2D perovskites have natural quantum well structures, large exciton binding energy (Eb) and outstanding thermal stability, which shows great potential in the next-generation displays and solid-state lighting. In this review, the fundamental structure, photophysical and electrical properties of 2D perovskite films were illustrated systematically. Based on the advantages of 2D perovskites, such as special energy funnel process, ultra-fast energy transfer, dense film and low efficiency roll-off, the remarkable achievements of 2D perovskite light-emitting diodes (PeLEDs) are summarized, and exciting challenges of 2D perovskite are also discussed. An outlook on further improving the efficiency of pure-blue PeLEDs, enhancing the operational stability of PeLEDs and reducing the toxicity to push this field forward was also provided. This review provides an overview of the recent developments of 2D perovskite materials and LED applications, and outlining challenges for achieving the high-performance devices."Image missing"

Towards Environmentally Friendly Solution Processing of Metal Halide Perovskite Technology

2021 ◽  
Author(s):  
Minh Tam Hoang ◽  
Feray Ünlü ◽  
Wayde Neil Martens ◽  
John M. Bell ◽  
Sanjay Mathur ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Metal Halide ◽  
World Record ◽  
Light Emitting ◽  
Perovskite Materials ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

Metal halide perovskite materials have demonstrated unique properties for applications in optoelectrical devices such as solar cells, light emitting diodes and photodetectors etc. The unprecedented world-record energy conversion efficiency over...

Highly luminescent and stable lead-free cesium copper halide perovskite powders for UV-pumped phosphor-converted light-emitting diodes

2020 ◽  
Vol 8 (6) ◽  
pp. 768 ◽  
Author(s):  
Lingling Xie ◽  
Bingkun Chen ◽  
Fa Zhang ◽  
Ziheng Zhao ◽  
Xinxin Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Lead Free ◽  
Copper Halide ◽  
Light Emitting ◽  
Halide Perovskite
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