Controlling Nucleation and Crystallization of CsPbI3 Perovskites for Efficient Inverted Solar Cells DOI
Man Yang,

Kangwei Mo,

Xueliang Zhu

et al.

Small, Journal Year: 2024, Volume and Issue: 20(28)

Published: Feb. 2, 2024

Abstract The unfavorable morphology and high crystallization temperature ( T c ) of inorganic perovskites pose a significant challenge to their widespread application in photovoltaics. In this study, an effective approach is proposed enhance the cesium lead triiodide (CsPbI 3 while lowering its . By introducing dimethylammonium acetate into perovskite precursor solution, rapid nucleation stage facilitated, significantly enhances crystal growth intermediate phase at low annealing temperatures, followed by slow higher temperatures. This results uniform dense CsPbI films with enhanced crystallinity, simultaneously reducing from 200 150 °C. Applying positive‐intrinsic‐negative (p‐i‐n) inverted cells yields power conversion efficiency 19.23%. Importantly, these exhibit stability, even under stress 85

Language: Английский

Defect Passivation and Stress Regulation via Bidentate Anchoring of Lewis Base for High‐Efficiency CsPbI3 Solar Cells DOI

Huifang Han,

Huijing Liu, Yuzhen Lv

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Abstract All‐inorganic CsPbI 3 perovskites film prepared via the low‐temperature solution method often suffers from numerous defects during crystallization process. Passivators used for surface passivation typically contain monofunctional groups, including sulfur, nitrogen, and oxygen. These monodentate groups bind to uncoordinated Pb 2+ by sharing electron pairs, thereby reducing defects. However, anchoring formed is relatively weak susceptible be damage due its low bond strength. Herein, a bidentate Lewis base, 2‐(2‐pyridyl)ethylamine (2‐PyEA), containing pyridine ring an alkyl amine, employed passivate stabilize crystal structure. Compared ligands, 2‐PyEA displays significantly enhanced coordination ability. In particular, of introduces lattice distortion transforms tensile stress into compressive within film, improving structural stability perovskite material. As result, solar cells treated with achieve impressive power conversion efficiencies (PCEs) 21.35% 17.19% active areas 0.09 1.0 cm 2 , respectively. Notably, device achieves even higher PCE 39.95% under indoor illumination conditions. The devices exhibit ambient conditions 5% relative humidity.

Language: Английский

Citations

0
Solution Growth of CsPbBrxI3-x bulk crystals and their optical and X-ray detection properties DOI
Le Xu, Hongjie Liu,

Sixian Chen

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180515 - 180515

Published: April 1, 2025

Language: Английский

Citations

0
Simulated 34% Efficient 2T Monolithic CsPbI3/Si Tandem Solar Cells: The Effect of Tailoring Nonradiative Voltage Losses DOI Creative Commons
Vineet Kumar Singh, Ajeet Kumar Singh,

Sumaiya Parveen

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: May 12, 2025

Language: Английский

Citations

0
The interaction of δ-CsPbI3 and CsPbBr3 nanostructures with soil extracts DOI Creative Commons

Karolina Solymos,

John Chagu,

Badam Ariya

et al.

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 126454 - 126454

Published: May 1, 2025

Cesium lead halide nanostructures (CsPbX3, where X = I or Br) are increasingly popular for solar cell applications, but their waste management remains underdeveloped, raising concerns about potential accumulation in soil. This study investigates the environmental stability of CsPbI3 and CsPbBr3 synthesized at different temperatures. Phenol was chosen as a model pollutant photocatalytic activity investigations, samples 130 °C showed ideal balance terms activity. Therefore, these were then interacted with acidic basic artificial soil extracts, thus representing solution under conditions. X-ray diffraction (XRD), scanning electron microscopy (SEM), fluorescence (XRF), diffuse reflectance spectroscopy (DRS), infrared (IR) used to assess material changes, while Pb leaching after interaction extracts measured by inductively coupled plasma mass spectrometry (ICP-MS). exposed leached Pb, I, Cs (as CsI), PbI2 stayed insoluble. Alkaline caused minimal leaching, indicating recrystallization, similar behavior. ICP-MS measurements that concentrations higher than ones. increased longer exposure. lower CsPbBr3, suggesting is more stable. These findings emphasize stabilization strategies-such chemical modifications, protective surface coatings, composite designs-to improve durability CsPbX3 nanomaterials realistic Without such advancements, large-scale deployment perovskites could pose significant risks.

Language: Английский

Citations

0
Controlling Nucleation and Crystallization of CsPbI3 Perovskites for Efficient Inverted Solar Cells DOI
Man Yang,

Kangwei Mo,

Xueliang Zhu

et al.

Small, Journal Year: 2024, Volume and Issue: 20(28)

Published: Feb. 2, 2024

Abstract The unfavorable morphology and high crystallization temperature ( T c ) of inorganic perovskites pose a significant challenge to their widespread application in photovoltaics. In this study, an effective approach is proposed enhance the cesium lead triiodide (CsPbI 3 while lowering its . By introducing dimethylammonium acetate into perovskite precursor solution, rapid nucleation stage facilitated, significantly enhances crystal growth intermediate phase at low annealing temperatures, followed by slow higher temperatures. This results uniform dense CsPbI films with enhanced crystallinity, simultaneously reducing from 200 150 °C. Applying positive‐intrinsic‐negative (p‐i‐n) inverted cells yields power conversion efficiency 19.23%. Importantly, these exhibit stability, even under stress 85

Language: Английский

Citations

3