scholarly journals Optical in situ monitoring during the synthesis of halide perovskite solar cells reveals formation kinetics and evolution of optoelectronic properties

2020 ◽  
Vol 8 (20) ◽  
pp. 10439-10449
Author(s):  
Klara Suchan ◽  
Justus Just ◽  
Pascal Becker ◽  
Eva L. Unger ◽  
Thomas Unold
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Optoelectronic Properties ◽  
In Situ Monitoring ◽  
Formation Kinetics ◽  
Halide Perovskites ◽  
Halide Perovskite

Optical in situ monitoring tracks crystallization and optoelectronic properties of halide perovskites during growth in a glovebox environment.

In Situ TEM Analysis of Organic–Inorganic Metal-Halide Perovskite Solar Cells under Electrical Bias

Nano Letters ◽  
2016 ◽  
Vol 16 (11) ◽  
pp. 7013-7018 ◽  
Author(s):  
Quentin Jeangros ◽  
Martial Duchamp ◽  
Jérémie Werner ◽  
Maximilian Kruth ◽  
Rafal E. Dunin-Borkowski ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Metal Halide ◽  
In Situ Tem ◽  
Tem Analysis ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
Electrical Bias

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 Perovskite solar cells have achieved a record efficiency of over 20%, which has superseded the efficiency of Gräztel dye-sensitized solar cell (DSSC) technology.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.

scholarly journals Ambient blade coating of mixed cation, mixed halide perovskites without dripping: in situ investigation and highly efficient solar cells

2020 ◽  
Vol 8 (3) ◽  
pp. 1095-1104 ◽  
Author(s):  
Ming-Chun Tang ◽  
Yuanyuan Fan ◽  
Dounya Barrit ◽  
Xiaoming Chang ◽  
Hoang X. Dang ◽  
...  
Keyword(s):  
Solar Cells ◽  
X Ray ◽  
X Ray Scattering ◽  
Mixed Cation ◽  
In Situ Investigation ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Blade Coating

Blade coating of mixed cation, mixed halide perovskite films is investigated using in situ X-ray scattering to investigate the role of formulations and processing routes and eliminate the need for anti-solvent dripping.

scholarly journals First-principles identification of the charge-shifting mechanism and ferroelectricity in hybrid halide perovskites

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Bumseop Kim ◽  
Jeongwoo Kim ◽  
Noejung Park
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
High Power Conversion Efficiency ◽  
Electronic Band ◽  
Guiding Principle ◽  
Molecular Cation ◽  
Spatial Charge ◽  
Halide Perovskites ◽  
Halide Perovskite

AbstractHybrid halide perovskite solar cells have recently attracted substantial attention, mainly because of their high power conversion efficiency. Among diverse variants, (CH3NH3)PbI3 and HC(NH2)2PbI3 are particularly promising candidates because their bandgap well matches the energy range of visible light. Here, we demonstrate that the large nonlinear photocurrent in β-(CH3NH3)PbI3 and α-HC(NH2)2PbI3 is mostly determined by the intrinsic electronic band properties near the Fermi level, rooted in the inorganic backbone, whereas the ferroelectric polarization of the hybrid halide perovskite is largely dominated by the ionic contribution of the molecular cation. The spatial charge shift upon excitation is attributed to the charge transfer from iodine to lead atoms in the backbone, which is independent of the presence of the cationic molecules. Our findings can serve as a guiding principle for the design of future materials for halide-perovskite solar cells with further enhanced photovoltaic performance.

Mixed cation hybrid lead halide perovskites with enhanced performance and stability

2017 ◽  
Vol 5 (23) ◽  
pp. 11450-11461 ◽  
Author(s):  
Feng Xu ◽  
Taiyang Zhang ◽  
Ge Li ◽  
Yixin Zhao
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Mixed Cation ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Improved Performance ◽  
Lead Halide

The mixed cation lead halide perovskite solar cells exhibited improved performance and enhanced stabilities.

scholarly journals Comment on “Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells”

Science ◽  
2021 ◽  
Vol 371 (6532) ◽  
pp. eabd8014 ◽  
Author(s):  
Sandheep Ravishankar ◽  
Thomas Unold ◽  
Thomas Kirchartz
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Drive Level ◽  
Research Articles ◽  
Trap States ◽  
Perovskite Layer ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Lead Halide

Ni et al. (Research Articles, 20 March 2020, p. 1352) report bulk trap densities of 1011 cm–3 and an increase in interfacial trap densities by one to four orders of magnitude from drive-level capacitance profiling of lead halide perovskites. From electrostatic arguments, we show that the results are not trap densities but are a consequence of the geometrical capacitance and charge injection into the perovskite layer.

Highly oriented quasi-2D layered tin halide perovskites with 2-thiopheneethylammonium iodide for efficient and stable tin perovskite solar cells

2022 ◽  
Author(s):  
Yanting Xu ◽  
Kejian Jiang ◽  
Pengcheng Wang ◽  
Wei-Min Gu ◽  
Guanghui Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Optoelectronic Properties ◽  
Band Gaps ◽  
Optical Band Gaps ◽  
Halide Perovskites ◽  
Light Absorbers

3D tin-based halide perovskites are promising light absorbers for the perovskite solar cells (PSCs) due to their non-toxicity, suitable optical band gaps, and excellent optoelectronic properties. However, the inherent rapid...

Engineering Electrodes and Metal Halide Perovskite Materials for Flexible/Stretchable Perovskite Solar Cells and Light-Emitting Diodes

2021 ◽  
Author(s):  
Kyung-Geun Lim ◽  
Tae-Hee Han ◽  
Tae-Woo Lee
Keyword(s):  
Solar Cells ◽  
Electronic Devices ◽  
Perovskite Solar Cells ◽  
Metal Halide ◽  
Inorganic Hybrid ◽  
Light Emitting ◽  
Perovskite Materials ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite

Organic-inorganic hybrid metal halide perovskites have excellent optoelectronic properties and are soft and resilient; therefore, they are appropriate for use in flexible and stretchable electronic devices. Commercialization of these perovskite...

scholarly journals In situ TEM analysis of structural changes in metal-halide perovskite solar cells under electrical bias

2016 ◽  
pp. 804-805 ◽  
Author(s):  
Quentin Jeangros ◽  
Martial Duchamp ◽  
Jérémie Werner ◽  
Rafal Dunin-Borkowski ◽  
Björn Niesen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Structural Changes ◽  
Perovskite Solar Cells ◽  
Metal Halide ◽  
In Situ Tem ◽  
Tem Analysis ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
Electrical Bias

scholarly journals Insights into operational stability and processing of halide perovskite active layers

2019 ◽  
Vol 12 (4) ◽  
pp. 1341-1348 ◽  
Author(s):  
Laura T. Schelhas ◽  
Zhen Li ◽  
Jeffrey A. Christians ◽  
Anuj Goyal ◽  
Paul Kairys ◽  
...  
Keyword(s):  
Free Energy ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Active Layers ◽  
Energy Of Mixing ◽  
Mixing Behavior ◽  
Halide Perovskite ◽  
Free Energy Of Mixing ◽  
A Site

The structural stability of mixed A-site perovskite solar cells during operation is observed by in situ XRD and the de-mixing behavior is described by calculating the Gibbs free energy of mixing.

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