Ambient processed (110) preferred MAPbI<sub>3</sub> thin films for highly efficient perovskite solar cells

Guo, Rui; Dahal, Biplav; Thapa, Arun; Poudel, Yuba; Liu, Yunyan; Li, Wenzhi

doi:10.1039/d0na01029d

Cited by 18 publications

(12 citation statements)

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“…S4 ). The positions of the peaks were measured and labelled with the corresponding Miller index 60 . The presence of multiple peaks, including (110), (114), (121), and (312) in the spectra of the samples 1, 2, 5 and 6 suggests the obtained films did not feature a preferred orientation.…”

Section: Resultsmentioning

confidence: 99%

A route towards the fabrication of large-scale and high-quality perovskite films for optoelectronic devices

Rezaee

Kutsarov

et al. 2022

Sci Rep

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Halide perovskite materials have been extensively explored for their unique electrical, optical, magnetic, and catalytic properties. Most notably, solar cells based on perovskite thin films have improved their power conversion efficiency from 3.8% to over 25% during the last 12 years. However, it is still a challenge to develop a perovskite-based ink, suitable for upscaling the fabrication process of high-quality perovskite films with extreme purity, good crystallinity, and complete coverage over the deposition area. This is particularly important if the perovskite films are to be used for the scaled production of optoelectronic devices. Therefore, to make halide perovskites commercially available for various applications, it is vital to develop a reliable and highly robust deposition method, which can then be transferred to industry. Herein, the development of perovskite precursor inks suitable for use at low-temperature and vacuum-free solution-based deposition processes is reported. These inks can be further tailored according to the requirements of the deposition method, i.e., we propose their use with the industrially viable deposition technique called “slot-die coating”. Furthermore, a route for the preparation of low-cost and high-volume manufacturing of perovskite films on both rigid and flexible substrates is suggested in this paper. The presented approach is suitable for the fabrication of any functional layers of perovskites, that can be employed in various scaled applications, and it seeks the potential and the methodology for perovskite film deposition that is scalable to industrial standards.

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Section: Resultsmentioning

confidence: 99%

A route towards the fabrication of large-scale and high-quality perovskite films for optoelectronic devices

Rezaee

Kutsarov

et al. 2022

Sci Rep

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“…Figure 15(b) shows the schematic illustration of the experimental setup to prepare the MA gas-mediated MAPbI 3 precursor solution. [275] For the first time, in 2015, Rao et al reported the compact SnO 2 nano colloid ETL for reproducible and high-efficiency MAPbI 3 PSCs. To obtain the smooth and uniform film, they did a TiCl4 treatment to the SnO2 layer.…”

Section: The Role Of Etl In the Performance Of Planar N-i-p Structure...mentioning

confidence: 99%

“…Reproduced with permission. [ 275 ] Copyright 2021, Royal Society of Chemistry. c) J‐V curves for the solar cell performance using the MAPbI 3 perovskite, the SnO 2 ETL prepared using ethanol and water as solvents.…”

Section: Common Solar Cell Structures and Their Effect On Performancementioning

confidence: 99%

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Configuration of Methylammonium Lead Iodide Perovskite Solar Cell and its Effect on the Device's Performance: A Review

Dahal

2022

Adv Materials Inter

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Since it is a source of clean energy, harnessing solar power is a natural solution to resolving the prevalent energy crisis. A solar cell is the most effective device to convert solar energy into electricity. Hence, a study on solar cells is the utmost area of interest in the energy sector.As illustrated in Figure 1, there are three generations of solar cells. Among these, the first-generation cells were of p-n homojunction on a silicon crystal, where the thickness of the absorbing layer was more than 180 µm. Mainly, silicon (Si) and germanium (Ge), indirect bandgap materials, assemble the cell. Single crystal silicon solar cells exhibit a conversion efficiency of about 26.7% and dominate the current solar cell market. [2] The second-generation solar cells are heterojunction solar cells using direct bandgap thin film materials (CdS, CIGS, etc.). The demerits of the first and second-generation solar cells are the cost of semiconducting materials, limited availability, and toxicity to human health. Emerging thirdgeneration solar cells act as an alternative. These include dyesensitized solar cells (DSSCs), organic photovoltaics, quantum dots, and perovskite solar cells (PSCs). Among all those, PSCs are at the center of the emerging photovoltaic technology with rapid improvement in the performance within a few years of discovering the first perovskite cell. Figure 2 depicts the different types of solar cells and their developmental trend for the past 46 years, showing that the performance of the PSCs has improved dramatically during a short period.The foundation technology for PSCs is DSSCs. In 1991, O'Regan and Grätzel developed a low-cost photochemical solar cell based on a high surface area nanocrystalline TiO 2 film sensitized with dye molecule. [4] The primary concern of DSSCs is the use of liquid electrolytes, which regenerate the dye after it injects electrons into the conduction band (CB) of the working electrodes (anode), which are mainly the thin layer of the metal oxide semiconductor. The electrolyte also acts as a hole transporting material to the counter electrodes (cathode). [5] The solid-state hole conductor emerged as a replacement to minimize leakage concerns in liquid electrolyte-based DSSCs. With several modifications in the device structures, researchers are trying to synthesize efficient DSSCs. However, the low absorption coefficientIn its initial phase in 2009, the inorganic-organic hybrid perovskite solar cells (PSCs) delivered a 3.8% power conversion efficiency (PCE), which is far below the present 25.7% PCE obtained in 2022. The significant improvement of the efficiency of PSCs in such a short period has stimulated significant interest in the photovoltaic community. However, the performance of current PSCs is behind the commercially available and widely used solar cells in terms of stability and scalability. Among various commonly studied perovskite materials, methylammonium lead iodide (MAPbI 3 ) is the most widely studied. This review will focus on the common solar cell structures (mesoporo...

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“…[ 8–12 ] Considering the simplicity and low‐cost required for large‐scale device manufacturing, it is highly desired to develop ambient air processed efficient and stable PSCs. [ 13–18 ] Though good device performance is achievable in air through humidity control, [ 19,20 ] it is still challenging to fabricate high performance PSCs in ambient air especially at high humidity level. Heat‐assisted film deposition methods are generally employed to prepare perovskite films in humid air, [ 21–23 ] however, the reported PCEs are much lower than that obtained in inert atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Achieving Efficient and Stable Perovskite Solar Cells in Ambient Air Through Non‐Halide Engineering

Wang

Jin

Zheng

et al. 2021

Advanced Energy Materials

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The realization of highly efficient perovskite solar cells (PSCs) in ambient air is considered to be advantageous for low‐cost commercial manufacturing. However, it is fundamentally difficult to achieve comparable device performance to that obtained in an inert atmosphere, especially when the ambient humidity is high. Here, an effective precursor engineering that simultaneously employs non‐halide lead acetate and lead thiocyanate lead sources for fabricating high‐quality methylammonium lead iodide perovskite films in ambient air with enhanced moisture tolerance, is reported. The presence of Ac– and SCN– ions not only enables the facile formation of homogeneous and highly crystalized perovskite films, but also directs the uniform growth of the crystals along the (110) direction. Accordingly, a 20.55% efficiency is demonstrated, one of the best results for air‐processed MAPbI3 PSCs, which is also the highest value achieved with non‐halide lead sources. Furthermore, the unencapsulated device shows fivefold prolonged air stability (3600 h) compared to the conventional PbI2‐based PSC. Together with the use of non‐toxic antisolvent, this strategy is fully compatible with ambient air operation and thus of great potential for practical applications.

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Ambient processed (110) preferred MAPbI₃ thin films for highly efficient perovskite solar cells

Abstract: Organic-inorganic hybrid perovskites have attracted intensive attention due to their exceptional optoelectronic properties. With a massive leap of efficiency from 3.8 % to 25.2 % in a decade, perovskite solar...

Cited by 18 publications

References 55 publications

A route towards the fabrication of large-scale and high-quality perovskite films for optoelectronic devices

A route towards the fabrication of large-scale and high-quality perovskite films for optoelectronic devices

Configuration of Methylammonium Lead Iodide Perovskite Solar Cell and its Effect on the Device's Performance: A Review

Achieving Efficient and Stable Perovskite Solar Cells in Ambient Air Through Non‐Halide Engineering

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Ambient processed (110) preferred MAPbI3 thin films for highly efficient perovskite solar cells

Abstract: Organic-inorganic hybrid perovskites have attracted intensive attention due to their exceptional optoelectronic properties. With a massive leap of efficiency from 3.8 % to 25.2 % in a decade, perovskite solar...

Cited by 18 publications

References 55 publications

A route towards the fabrication of large-scale and high-quality perovskite films for optoelectronic devices

A route towards the fabrication of large-scale and high-quality perovskite films for optoelectronic devices

Configuration of Methylammonium Lead Iodide Perovskite Solar Cell and its Effect on the Device's Performance: A Review

Achieving Efficient and Stable Perovskite Solar Cells in Ambient Air Through Non‐Halide Engineering

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Ambient processed (110) preferred MAPbI₃ thin films for highly efficient perovskite solar cells