Enhancing the stability of cesium lead iodide perovskite nanocrystals: Recent progress, challenges and opportunities

Min, Xianhao; Xie, Qifei; Wang, Xinzhong; Chen, Mingxiang

doi:10.1016/j.surfin.2020.100870

Cited by 9 publications

(5 citation statements)

References 93 publications

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“…[ 44 ] On the other hand, one serious limitation of this technique is the low solubility of inorganic “A” cation precursors (e.g., Cs salts) in common organic solvents (e.g., DMF, DMSO), which hinders for fabrication of all inorganic Cs‐based HP NCs. [ 45 ] Sichert et al had shown the LARP synthesis of MAPbBr 3 NCs without using carboxylic acid. They had only employed octylammonium and MA + ions as ligands.…”

Section: Synthesis Approaches For Preparation Of Hp Ncsmentioning

confidence: 99%

Synthesis and Properties of Halide Perovskites Nanocrystals Toward Solar Cells Application

Chini

2024

Energy Tech

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Halide perovskite nanocrystals (HP NCs) based perovskite solar cells (PSCs) have attracted serious attention along with relatively unstable bulk HP‐based thin‐ﬁlm solar cells aiming to make more eﬃcient and stable PSCs. HP NCs have still limited employment in PSCs despite their inherent unique properties such as strong absorption and photoluminescence, controlled transport and charge‐carrier mobility, low defect density, solution processability, and compatibility with large‐scale deposition techniques suitable for PSCs. Nanostructuring of the perovskites offers other unique characteristics such as confinement effects. These exciting characteristics together with the exceptional tunability in their shape, composition, and functionalities make HP NCs promising for PVs applications. In order to develop efficient HP NCs PSCs, major focus lies on discussing the various synthesis approaches, optoelectrical behaviors of HP NCs, and optimized device architectures. In this context, this review article deals with various approaches to HP NCs synthesis, properties, current challenges, and factors affecting the performance of the NC‐based PSCs. Based on these discussions, perspectives on promising directions for effective utilization of HP NCs toward the improvement and commercialization of the exciting promising material‐based stable and efficient PSCs in the near future are provided.

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Section: Synthesis Approaches For Preparation Of Hp Ncsmentioning

confidence: 99%

Synthesis and Properties of Halide Perovskites Nanocrystals Toward Solar Cells Application

Chini

2024

Energy Tech

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“…It is mainly due to the improvement of the crystallinity of perovskite films. To calculate the band gap, the UV absorption spectrum was converted according to the Kubelka-MunK formula [25], and the relationship between (Ahν) 2 and hν is shown in Figure 8b. The calculated band gap of the control group CsPbI2Br film was 1.909 eV, and the band gap of the experimental group CsPbI2Br film was 1.906 eV.…”

Section: Detailed Pv and IV Characteristics Analysismentioning

confidence: 99%

“…Perovskite solar cells, a promising new photovoltaic technology, have exhibited a rapid increase in efficiency from 3.8% to 25.7% in the past decade [1], with the incorporation of the most efficient PSCs (PCE > 20%) composed of organic-inorganic hybrid calcium [2][3][4][5]. However, organic-inorganic hybrid perovskite materials have poor stability when exposed to heat, oxygen, moisture, and even light [2,6,7]. Higher intrinsic stability of perovskite materials is achieved when organic cations are replaced by inorganic cesium ions [8].…”

Section: Introductionmentioning

confidence: 99%

Role of Dibenzo Crown Additive for Improving the Stability of Inorganic Perovskite Solar Cells

Miao

Zhang

et al. 2023

Nanomaterials

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Photovoltaics are being transformed by perovskite solar cells. The power conversion efficiency of these solar cells has increased significantly, and even higher efficiencies are possible. The scientific community has gained much attention due to perovskites’ potential. Herein, the electron-only devices were prepared by spin-coating and introducing the organic molecule dibenzo-18-crown-6 (DC) to CsPbI2Br perovskite precursor solution. The current-voltage (I-V) and J-V curves were measured. The morphologies and elemental composition information of the samples were obtained by SEM, XRD, XPS, Raman, and photoluminescence (PL) spectroscopies. The distinct impact of organic DC molecules on the phase, morphology, and optical properties of perovskite films are examined and interpreted with experimental results. The efficiency of the photovoltaic device in the control group is 9.76%, and the device efficiency gradually increases with the increase of DC concentration. When the concentration is 0.3%, the device efficiency is the best, reaching 11.57%, short-circuit current is 14.01 mA/cm2, the open circuit voltage is 1.19 V, and the fill factor is 0.7. The presence of DC molecules effectively controlled the perovskite crystallization process by inhibiting the in-situ generations of impurity phases and minimizing the defect density of the film.

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“…13 Halide perovskites nanocrystals (PNCs) are promising uorescence materials due to their outstanding characteristics, including high photoluminescence quantum yield (PLQY), narrow emission band, tunable band gap, convenient synthesis and low-cost. [14][15][16][17][18] Methylammonium lead halide perovskites, MAPbX 3 (X ¼ Cl, Br, I) PNCs, have attracted increased attention in the elds of solar cells, light-emitting diodes, and photodetectors. However, only few reports on the uorescence T sensing based on MAPbX 3 PNCs, which can be attributed into two reasons: (1) MAPbX 3 PNCs are facilitated interference during T sensing due to their poor stability in a humid environment; 19 (2) pure MAPbX 3 PNCs have low response sensitivity to T although uorescence quenching oen occurs with increase of T. 20 Conventionally, encapsulation of halide PNCs into protecting matrices, such as SiO 2 , 21 TiO 2 , 22 Al 2 O 3 (ref.…”

Section: Introductionmentioning

confidence: 99%

Ratiometric fluorescence sensing of temperature based on perovskite nanocrystals and rhodamine B doped electrospun fibers

Tan

Zhou

et al. 2022

RSC Adv.

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Enhancing the stability of cesium lead iodide perovskite nanocrystals: Recent progress, challenges and opportunities

Cited by 9 publications

References 93 publications

Synthesis and Properties of Halide Perovskites Nanocrystals Toward Solar Cells Application

Synthesis and Properties of Halide Perovskites Nanocrystals Toward Solar Cells Application

Role of Dibenzo Crown Additive for Improving the Stability of Inorganic Perovskite Solar Cells

Ratiometric fluorescence sensing of temperature based on perovskite nanocrystals and rhodamine B doped electrospun fibers

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