Solar cell using spray casted Cs2SnI6 perovskite thin films on chemical bath deposited CdS yielding high open circuit voltage

Suazo, Franco Josué Amaya; Shaji, Sadasivan; Avellaneda, David Avellaneda; Aguilar-Martínez, J.A.; Krishnan, Bindu

doi:10.1016/j.solener.2020.06.101

Cited by 38 publications

(22 citation statements)

References 32 publications

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“…Different post-treatments of overall device have been conducted to advance the PSCs, such as thermal, moisture, and organic vapor post-treatment. For the thermal post-treatment, postannealing for CsPbI 2 Br PSCs was carried out at 70 °C for 30 min under a N 2 environment, leading to remarkable improvement of PCE and thermal stability along with shelf stability, while postvacuum annealing at 150 °C improved the morphology of the C 2 SnI 6 film and thus the device V oc as well as the structural stability. , Also, a slow postannealing method was applied to butylamine (BA)-based BA 2 MA 3 Pb 4 I 13 ( n = 4) 2D PSCs at 60 °C for 60 h in a N 2 atmosphere, causing better crystal orientation and preferable alignment of the multiple perovskite phases, accelerating charge extraction and transport, mitigating recombination, and thus enhancing both PCE and the stability tested under a N 2 environment . Another post-treatment method for the overall device is the humidity-assisted thermal exposure (HTE) post-treatment method, which combines contributions of moisture and heat to device improvement through the exposure of overall device under 70 ± 5% humidity at 40 °C in an automated weather chamber, improving the interfaces of different layers and the crystallinity, and resulting in an impressive light stability .…”

Section: Process Engineeringmentioning

confidence: 99%

Achieving Resistance against Moisture and Oxygen for Perovskite Solar Cells with High Efficiency and Stability

Chi

Banerjee

2021

Chem. Mater.

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Realization of high efficiency along with long-term stability of perovskites solar cells has been a goal of researchers in this field. Breakthroughs in efficiency have been achieved in the past decade, exceeding those of most thin film solar cells. However, the challenge of degradation and instability of perovskite solar cells is currently the bottleneck for their real-life application. Extensive research has been conducted to achieve simultaneously high efficiency and high stability, leading to considerable progress in device performance. A significant source causing degradation is the ingression of external materials, such as moisture and oxygen. In this review, the mechanisms of moisture and oxygen degradation occurring in perovskite absorber and charge transporting layers are interpreted. Primary approaches to simultaneously achieve high efficiency and high stability focus on encapsulation, interfacial layer engineering, process engineering, ion engineering, and dopant and alternative engineering. In brief, we review the materials development and engineering strategies to improve performance and identify the obstacles that hinder the realization of high stability along with high efficiency.

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Section: Process Engineeringmentioning

confidence: 99%

Achieving Resistance against Moisture and Oxygen for Perovskite Solar Cells with High Efficiency and Stability

Chi

Banerjee

2021

Chem. Mater.

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“…The device includes all-inorganic photovoltaic structures of FTO/CdS/Cs 2 SnI 6 /C/Ag, and delivered a maximum V OC of 0.86 V after post-thermal annealing of the device at 150 °C. [140] 4.2. Cs 2 TiX 6…”

Section: Cs 2 Nabixmentioning

confidence: 99%

mentioning

confidence: 99%

Recent Progress in Cesium‐Based Lead‐Free Halide Double Perovskite Materials for Photovoltaic Applications

Raj

Kumar

Anshul

2022

Physica Status Solidi (a)

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Perovskite materials have revolutionized photovoltaic technology and become the vanguard of current research owing to their facile solution processability and exceptional enhancement in power conversion efficiency (PCE), reaching 25.2% to date. Unfortunately, lead toxicity is the major hurdle for perovskite solar cells (PSCs) for their scalability and prevalent commercialization. To tackle the toxicity issue, lead-free perovskite and double perovskite materials are potential contenders in the photovoltaic world. Herein, a comprehensive study of lead-free halide double perovskite materials with the formula A 2 BB'X 6 is provided. Notably, the structure and design of the lead-free light-harvesting layer of Cs 2 BB'X 6 is emphasized. Moreover, different organic-inorganic lead-free halide double perovskite layers-based solar devices are explored with their designed configurations and physical parameters. Finally, recent significant advancement in leadfree double PSCs are reviewed, and the future outlook associated with lead-free double perovskite devices is also deliberated to attain a promising pathway toward highly efficient and stable perovskite solar devices.

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“…23,24 However, the instability of these materials remains an issue due to the oxidization of their bivalent cations to tetravalent ones (e.g., Ge 4+ and Sn 4+ ) under ambient conditions. 25 Alternatively, perovskites with the chemical formulas of Cs 3 M(III) 2 X 9 and Cs 2 M(IV)X 6 have been synthesized, where X represents a halogen element; M(III) and M(IV) are trivalent cations (for instance, Bi 3+ and Sb 3+ ) [26][27][28] and tetravalent cations (for instance, Sn 4+ and Ti 4+ ), [29][30][31] respectively. Although this yields long-term stability, an isolated network of metal halide octahedral units is generated in these compounds, which results in low charge mobility and indirect bandgap.…”

Section: Introductionmentioning

confidence: 99%

Lead-free all-inorganic halide double perovskite materials for optoelectronic applications: progress, performance and design

Zuo

Yam

et al. 2022

Phys. Chem. Chem. Phys.

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Solar cell using spray casted Cs2SnI6 perovskite thin films on chemical bath deposited CdS yielding high open circuit voltage

Cited by 38 publications

References 32 publications

Achieving Resistance against Moisture and Oxygen for Perovskite Solar Cells with High Efficiency and Stability

Achieving Resistance against Moisture and Oxygen for Perovskite Solar Cells with High Efficiency and Stability

Recent Progress in Cesium‐Based Lead‐Free Halide Double Perovskite Materials for Photovoltaic Applications

Lead-free all-inorganic halide double perovskite materials for optoelectronic applications: progress, performance and design

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