Lanthanide-doped inorganic halide perovskites (CsPbX<sub>3</sub>): novel properties and emerging applications

Kachhap, Santosh; Singh, Sachin Kumar; Singh, Akhilesh Kumar; Singh, Sunil Kumar

doi:10.1039/d1tc05506b

Cited by 44 publications

(34 citation statements)

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“…[ 101 ] However, compared with Pb based halide perovskite, Cs 2 AgInCl 6 shows broad PL originated from the self‐ trapped excitons, with rather low photoluminescence quantum yield (PLQY). [ 1 ] In 2018, Na + alloying and Bi doping were first designed to significantly improve PLQY. Very stable warm‐white light had been realized for 0.04% Bi alloyed Cs 2 (Ag 0.60 Na 0.40 )InCl 6 crystals, with 86 ± 5% quantum efficiency and stability for over 1000 hours.…”

Section: Growth Defects and Dopingmentioning

confidence: 99%

“…In the past decade, metal halide perovskites are undoubtedly one class of the most fascinating optoelectronic materials, thanks to their extraordinary properties, such as outstanding carrier transport characteristics, large X-ray attenuation coefficients, high light-harvesting capability, tunable bandgaps, and highly efficient luminescence. [1,2] Most importantly, metal halide perovskites can be synthesized readily in the form of single crystals, films, nanocrystals, and quantum dots. These outstanding characteristics endow them as emerging candidates for solar cells, LED, lasers, photodetectors, direct/indirect radiation detectors, and photocatalysis.…”

Section: Introductionmentioning

confidence: 99%

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Progress of Metal Halide Perovskite Crystals From a Crystal Growth Point of View

et al. 2022

Cryst. Res. Technol.

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Metal halide perovskites are demonstrated to show fascinating optical and electronic properties, including highly efficient luminescence, outstanding carrier transport behavior, and large light absorption coefficient. In particular, halide perovskite single crystals are characterized with superior optoelectronic performance and enhanced stability, emerging as competitive candidates for applications in solar cells, light-emitting diodes, lasers, photodetectors, and high-energy radiation detectors. Recently, remarkable advances have been achieved to grow perovskite single crystals, while there are also many challenges in the control of growth defects and further improvement of the crystal quality. Concerning these factors, recent progress of metal halide perovskite crystals from the view of crystal growth is systematically summarized. Moreover, some ongoing challenges and perspectives for halide perovskite crystals are also proposed, which will possibly provide deeper insight into the exploration of novel perovskite crystals and related devices.

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Section: Growth Defects and Dopingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Progress of Metal Halide Perovskite Crystals From a Crystal Growth Point of View

et al. 2022

Cryst. Res. Technol.

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“…[64][65][66] Besides this, DC materials doping also contributes to preferable energy-level alignment and also diminishes trapstate density in PSCs. [67][68][69] Moreover, DC materials doping aids the development of perovskite grains with lesser defects. [70] Currently, solar cells include spectrum conversion layers to facilitate the conversion of higher to lower photon energy and vice versa, known as DC and upconversion (UC) processes, respectively.…”

Section: Introductionmentioning

confidence: 99%

Downconversion Materials for Perovskite Solar Cells

et al. 2022

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Perovskite solar cells (PSCs) have made game‐changing progress in the last decade and reached a power conversion efficiency (PCE) of up to 25%. Furthermore, the development of material chemistry, structure design, active layer composition, process engineering, etc. has contributed to improving PSCs’ stability. The significant PCE losses experienced by PSCs are related to spectral mismatch between the incident solar spectra and absorption range of the active layer, which thereby limits the PCE. Besides PSCs’ performance, the photoinduced degradation is also a major concern. Recently, lanthanide (rare‐earth) and nonlanthanide‐based downconversion (DC) materials have been introduced to resolve these spectral mismatch losses as well as reduce the photoinduced degradation. The DC materials improve the photovoltaic performance by converting ultraviolet (UV) light to visible, also providing UV shielding, and thus contribute to increasing the efficiency as well as stability of PSCs. Moreover, the Shockley–Queisser efficiency limit of the solar cell can be crossed with the help of DC materials. In this review, the importance, processing, and the reported DC materials for PSCs are thoroughly discussed. Furthermore, the development of DC materials and their impact on PSCs’ performance and stability, along with their future perspectives, are focused.

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“…Lead halide perovskite nanocrystals (NCs) are some of the most actively researched materials due to the wide range of their applications, including but not limited to optoelectronics, nonlinear optics, photovoltaics, catalysis, sensing, and quantum information technologies. − In recent years, significant attention has been paid to the doping of perovskite NCs as a strategy to improve their structural and optical properties. , For example, it was shown that the B-site doping of an ABX 3 perovskite structure can improve the NCs stability, , photoluminescence (PL) quantum yield, − and nonlinear response. , Of particular promise is the doping of perovskite NCs with manganese or lanthanides, which results in completely new emission bands in the visible and near-infrared (NIR) spectral ranges, thus making such NCs promising candidates for white light generation, solar harvesting, and bioimaging. − Importantly, lanthanide-doped (Yb 3+ and Er 3+ ) NCs can demonstrate an efficient dual-band PL with emission in the visible and NIR spectral regions simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Stoichiometry Control in Dual-Band Emitting Yb³⁺-Doped CsPbCl_xBr_3–x Perovskite Nanocrystals

et al. 2022

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Perovskite nanocrystals (NCs) are currently one of the most efficient optical materials in the visible spectral range. Much attention is paid to extending their efficiency to the near-infrared (NIR) spectral region, which will significantly benefit their applications in optoelectronics, photonics, and biomedicine. To further promote this effort, we developed a novel synthetic approach to dual-band emitting Yb3+-doped perovskite NCs, whose stoichiometry and hence the position of the visible photoluminescence can be tuned independently of the Yb3+-precursor. The intensity of the NIR emission from Yb3+ ions shows a notable nonlinear dependence on the excitation power. To describe the corresponding redistribution of the photoluminescence intensities between the emissive channels, we developed a theoretical description of the relaxation dynamics in the doped NCs, including both the energy transfer and quantum cutting processes. Finally, we showed that the dual-band photoluminescence in the doped NCs can be excited via two-photon absorption. Our findings thus pave the way for new nanomaterials that can be operated entirely in the NIR spectral range.

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Lanthanide-doped inorganic halide perovskites (CsPbX₃): novel properties and emerging applications

Abstract: Inorganic halide perovskites (IHPs) have provoked intense research because of their superior stability, excellent optoelectronic properties, cost-effectiveness, and striking optoelectronic applications. Recently, the doping of lanthanide ions in IHPs has...

Cited by 44 publications

References 194 publications

Progress of Metal Halide Perovskite Crystals From a Crystal Growth Point of View

Progress of Metal Halide Perovskite Crystals From a Crystal Growth Point of View

Downconversion Materials for Perovskite Solar Cells

Stoichiometry Control in Dual-Band Emitting Yb³⁺-Doped CsPbCl_xBr_3–x Perovskite Nanocrystals

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Lanthanide-doped inorganic halide perovskites (CsPbX3): novel properties and emerging applications

Abstract: Inorganic halide perovskites (IHPs) have provoked intense research because of their superior stability, excellent optoelectronic properties, cost-effectiveness, and striking optoelectronic applications. Recently, the doping of lanthanide ions in IHPs has...

Cited by 44 publications

References 194 publications

Progress of Metal Halide Perovskite Crystals From a Crystal Growth Point of View

Progress of Metal Halide Perovskite Crystals From a Crystal Growth Point of View

Downconversion Materials for Perovskite Solar Cells

Stoichiometry Control in Dual-Band Emitting Yb3+-Doped CsPbClxBr3–x Perovskite Nanocrystals

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Product

Resources

About

Lanthanide-doped inorganic halide perovskites (CsPbX₃): novel properties and emerging applications

Stoichiometry Control in Dual-Band Emitting Yb³⁺-Doped CsPbCl_xBr_3–x Perovskite Nanocrystals