In the past decade, hybrid organic‐inorganic perovskite solar cells (PSCs) have attracted significant attention. Since then, the power conversion efficiency has astonishingly reached to 25.5%, situating perovskites at the forefront of all reported solution‐processed photovoltaic materials. The research of PSCs has reached a stage where efficiency, stability, and cost …
To date, antisolvent treatment has become one of the most important means to fabricate high efficiency perovskite solar cells (PSCs); however, the few reported antisolvents have not been analyzed on a uniform platform, and there is hitherto no clear reasoning in the choice of antisolvents toward high performance PSCs. Here, we study the role of the …
High-quality perovskite films are essential for high-performance perovskite solar cells (PSCs). Here we first proposed a polar anti-solvent technology of sec-pentyl alcohol (2-PA) for the ...
In this review, we discuss recent results on highly efficient solar cells, obtained by the anti-solvent dripping method, always in the presence of Lewis base adducts of lead(II) iodide. We present all the anti-solvents …
In addition, present challenges and further opportunities of the anti-solvent methodology toward efficient and large-scale PSCs are highlighted. The continuous efforts dedicated to the development of anti-solvent treatment for fabricating high-performance large-area devices may pave the way toward commercial applications of …
In the past decade, hybrid organic-inorganic perovskite solar cells (PSCs) have attracted significant attention. Since then, the power conversion efficiency has astonishingly reached to 25.5%, situating perovskites at the forefront of all reported solution-processed photovoltaic materials. The research of PSCs has reached a stage where …
Fig. 2 presents the photos of PCBM/MAPbI 3 /glass substrates with the different solvent treatments at the different reaction times under room temperatures. When the methanol is used in the SP process, the sample completely changes from the red-brown color to the yellow color within 5 s. When the ethanol is used in the SP process, the …
Anti-solvent treatment assisted crystallization is currently one of the most widely used methods to obtain high-quality perovskite films ascribed to its great operability. However, choosing a proper anti-solvent toward high-quality perovskite film for perovskite solar cells (PSCs) remains elusive. In this study, we qualitatively evaluate the impact of …
Here, an anti-solvent, typically chlorobenzene (CB), is used to induce rapid crystallisation of a liquid perovskite precursor resulting in highly homogenous, pinhole-free planar perovskite films. While this has yielded very impressive high-performance results, few efforts have been dedicated to the fundamental understanding of the anti-solvent ...
3.1 Common anti-solvent. As one of the most common anti-solvents, chlorobenzene (CB) is often used to improve film morphology and quality. Liu et al. [] revealed the effect of different anti-solvent on film morphology and carrier recombination this Letter, DMF and DMSO were used together with the additive SnF 2 as a mixed …
Developing a stable, low-cost, and environment-friendly solvent system for upscaling perovskite films is of great significance for improving the photovoltaic performance of PSMs. Moderating solvent mixtures (solvent engineering) plays a decisive role in the coating process for the quality of films over large areas. With respect to the …
The success of perovskite solar cells is attributed to superior optoelectronic properties of perovskites, feasible synthesis process, and low fabrication cost. Though perovskite solar cells confront perovskite film quality related issues, such as rough surface, pinholes (which result in poor device performance) at the initial stages, many ...
High-quality perovskite films are essential for high-performance perovskite solar cells (PSCs). Here we first proposed a polar anti-solvent technology of sec-pentyl alcohol (2-PA) for the fabrication of perovskite films. Our investigations have proven that 2-PA, as a better anti-solvent than conventional those with non- and high-polarity, enables …
CsPbBr 3 perovskite solar cells have garnered significant attention owing to their exceptional stability and facile fabrication in ambient conditions. Nonetheless, producing high-quality CsPbBr 3 thin films presents formidable challenges due to the intricate process and the employment of hazardous solvents. In this study, we propose a …
In summary, we developed a solvent-engineering technology for the deposition of extremely uniform perovskite layers, and demonstrated a solution-processed perovskite solar cell with 16.5% PCE ...
Colloidal lead-halide perovskite nanocrystals (LHP NCs) have emerged over the past decade as leading candidates for efficient next-generation optoelectronic devices, but their properties and performance …
Moreover, additives (e.g., Cl − and F −) [71], [72] and anti-solvent (e.g., chlorobenzene) [73] are proven to be also highly effective to improve the quality of perovskite films. We anticipate that the different additives will tailor the thermodynamics and kinetics of perovskite crystallization, meriting further experimental and theoretical ...
The purity of PbI 2 plays a critical role in determining the performance, stability, and reproducibility of perovskite solar cells (PSCs). However, the cost of high-purity PbI 2 is much higher than that of low-purity, and even the expensive high-purity PbI 2 suffers from batch variance issues. Although several purification methods have been …
The anti-solvent, which strongly interacts with the solvent, can reduce the amount of residual solvent and then contribute to the nucleation and crystallisation of the perovskite. The choice of anti …
In this research work, we investigated the stability of perovskite films and solar cells fabricated and annealed in natural air using four different anti-solvents: …
The key point of solvent engineering is the fine-tuning of the interaction between the solvent/anti-solvent and the perovskite raw materials by regulating the …
Inverted perovskite solar cells (PSCs) have attracted much interest due to their improved operational stability in the past few years. However, despite the recent advances of their performance, they still suffer from low power conversion efficiencies with a reduced open-circuit voltage (V oc), as compared to PSCs with a regular structure, due …
To achieve larger grains while maintaining a compact perovskite film, chlorobenzene (CB, anti-solvent) and ethanol (EtOH, solvent) were chosen to modulate the film morphology.
Solvent engineering is one of the most widely applied preparation methods for the high- quality perovskite films. In this method, the choice of anti-solvent plays a very important role to improve the perovskite crystal …
DOI: 10.1021/acsenergylett.3c00265 Corpus ID: 258285283; Tailoring of the Anti-Perovskite Solid Electrolytes at the Grain-Scale @article{Dixit2023TailoringOT, title={Tailoring of the Anti-Perovskite Solid Electrolytes at the Grain-Scale}, author={Marm B. Dixit and Nitin Muralidharan and Anuj Bisht and Charl J. Jafta and Christopher T. …
By using miscible antisolvents with high boiling point instead of immiscible low boiling point solvents, we obtain homogeneous and almost pinhole-free perovskite films. When using trifluorotoluene (TFT) to replace toluene …
Anti-perovskites as a new family of crystalline materials play an important role in energy storage batteries. This review presents a comprehensive overview of the development and fundamental understa...
Solvent engineering is one of the most widely applied preparation methods for the high- quality perovskite films. In this method, the choice of anti-solvent plays a very important role to improve the perovskite crystal quality. Here, we report a facile way to regulate the crystal quality of perovskite film by adjusting the ratio of toluene and diethyl ether in the …
We presented a new mixed solvent treatment approach at ambient condition for synthesizing highly oriented perovskite grain crystallites with statistically controlled sizes and pinhole densities...
Liu, Y. et al. Stabilized Li-S batteries with anti-solvent-tamed quasi-solid-state reaction. Joule 7, 2074–2091 (2023). Article CAS Google Scholar
The boiling point and volatilization rate of different anti-solvents affect the crystallization rate of perovskite, resulting in different grain sizes after crystallization and affecting the absorption of …
improve the role of anti-solvents in perovskite formation, usually their anti-solvents are toxic, and there is a lack of anti-solvent engineering for green anti-solvents. In the current study, we planned to improve the potential of ethyl acetate green anti-solvent (GAS). We employed potassium thiocyanate (KSCN) as an additive source for GAS ...
In addition, present challenges and further opportunities of the anti-solvent methodology toward efficient and large-scale PSCs are highlighted. The continuous efforts dedicated to the development of anti-solvent treatment for fabricating high-performance large-area devices may pave the way toward commercial applications of …
The recent progress in fabricating high﹒uality perovskite thin‐films adopting an "anti﹕olvent" strategy is reviewed, the established nucleation and crystal growth mechanisms during the treatment process is discussed, and challenges and opportunities of the anti﹕olvent methodology toward efficient and large﹕cale perovskite solar cells ...
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