Moisture-Assisted near-UV Emission Enhancement of Lead-Free Cs4CuIn2Cl12 Double Perovskite Nanocrystals

Liu, Maning; Matta, Sri Kasi; Ali‐Löytty, Harri; Matuhina, Anastasia; Grandhi, G. Krishnamurthy; Lahtonen, Kimmo; Russo, Salvy P.; Vivo, Paola

doi:10.1021/acs.nanolett.1c03822

Cited by 31 publications

(31 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cs 4 CuSb 2 Cl 12 was first reported by Vargas et al, 50 and there has been an increased interest in the class 51 and other lead-free derivatives synthesized, such as Cs 4 CuIn 2 Cl 12 and Cs 4 Cd 1−x MnxBi 2 Cl 12 . 52,53 Starting from the A 2 BB ′ X 6 double perovskite lattice, a different class of materials can be defined by replacing the B ′ site with vacancies, and the B-site with a suitably charged metal to maintain charge neutrality. These compounds are known as vacancy ordered double perovskites (A 2 BX 6 ), such as Cs 2 SnI 6 and Cs 2 TiBr 6 .…”

Section: Types Of Lead-free Perovskitesmentioning

confidence: 99%

Pb-free halide perovskites for solar cells, light-emitting diodes, and photocatalysts

et al. 2022

View full text Add to dashboard Cite

Metal halide perovskites have recently emerged as one of the most promising classes of semiconductors for various applications, especially in the field of optoelectronics. Lead-based halide perovskite materials, virtually unexploited for decades, have become prominent candidates due to their unique and intrinsic physicochemical and optical properties. Current challenges faced by the scientific community to capitalize on the properties of Pb-based perovskites are mainly associated with environmental concerns due to the toxicity of Pb and their poor stability. Under this context, over recent years, a number of new Pb-free halide perovskite (and perovskite-like) semiconductor classes have been introduced. This Perspective reviews recent developments in Pb-free halide perovskites, which specifically target their application in solar cells, light-emitting devices, and photocatalysts. Each type of Pb-free material is paired with a specific optoelectronic application, and the latest record performances are reported. Although these materials do not yet exhibit as attractive intrinsic optoelectronic properties as the Pb-based halide perovskites, their potential as alternatives for well-suited applications is discussed.

show abstract

Section: Types Of Lead-free Perovskitesmentioning

confidence: 99%

Pb-free halide perovskites for solar cells, light-emitting diodes, and photocatalysts

et al. 2022

View full text Add to dashboard Cite

show abstract

“…43 Fig. 2 presents a summary of the formability of recently reported LFAIHDPs 21,32,34,38,[44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59] in a t eff -m eff map, where the existing double perovskites generally satisfy these conditions. For quantitative prediction, firstprinciples calculations based on density functional theory (DFT) have been successfully applied to screen stable double perovskites.…”

Section: Goldschmidt Tolerance and Octahedral Factorsmentioning

confidence: 99%

“…[7][8][9] Commonly proposed strategies to improve the stability of perovskites include the replacement of their A-site organic groups with inorganic metal cations (e.g., Cs, K, and Rb), [10][11][12][13] reduction of perovskite dimensions 14,15 and surface passivation. [16][17][18] Cesium-based double perovskites have been commonly reported in recent studies, 11,[19][20][21] with a remarkable improvement in thermal stability and high carrier mobilities. 22 Thus, experimental and theoretical investigations on Cs-based compounds are mainly discussed herein.…”

Section: Introductionmentioning

confidence: 99%

“…have been proposed recently, 37,38 with the (M(II)X 6 ) 4À octahedron and (M(III)X 6 ) 3À octahedron layers being stacked alternately. 21 Fig. 1 shows the crystal structure of the common LFAIHDPs.…”

Section: Introductionmentioning

confidence: 99%

“…, Cs, K, and Rb), 10–13 reduction of perovskite dimensions 14,15 and surface passivation. 16–18 Cesium-based double perovskites have been commonly reported in recent studies, 11,19–21 with a remarkable improvement in thermal stability and high carrier mobilities. 22 Thus, experimental and theoretical investigations on Cs-based compounds are mainly discussed herein.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Lead-free all-inorganic halide double perovskite materials for optoelectronic applications: progress, performance and design

Zuo

Yam

et al. 2022

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

Magnetic and Electric Field Dependent Charge Transfer in Perovskite/Graphene Field Effect Transistors

Cottam

Austin

Zhang

et al. 2022

Adv Elect Materials

View full text Add to dashboard Cite

unique and outstanding optical properties such as high quantum yield (QY), strong absorption, and widely tunable band gap energy [8][9][10] accompanied by inexpensive solution processing techniques. [11][12][13] These PNCs have been successfully used in photon detectors operational in the visible wavelength range with photoresponsivity, R > 10 5 A W −1 , [14,15] and could offer further opportunities for UV applications. [16,17] Amongst device structures of particular interest are hybrid field effect transistors (FETs) that combine single-layer graphene (SLG) with PNCs. The performance of these devices, such as their response time, is affected by the slow, >1 s, redistribution of charge between the graphene layer and PNCs under light and/or electrostatic gating, [18,19] leading to the accumulation of a large amount of charge in the PNCs (7 × 10 12 cm −2 [19] ). This phenomenon can induce a range of interesting physical phenomena, such as an optically induced Stark effect, [20] large hysteresis on the gate voltage dependence of the graphene resistance, [19] and enhancement of the photoresponsivity. [21,22] However, to fully exploit the potential of perovskite/graphene structures, a comprehensive understanding of their properties is still needed. High magnetic fields are invaluable for interrogating fundamental physical processes Stable all-inorganic CsPbX 3 perovskite nanocrystals (PNCs) with high optical yield can be used in combination with graphene as photon sensors with high responsivity (up to 10 6 A W −1 ) in the VIS-UV range. The performance of these perovskite/graphene field effect transistors (FET) is mediated by charge transfer processes at the perovskite -graphene interface. Here, the effects of high electric (up to 3000 kV cm −1 ) and magnetic (up to 60 T) fields applied perpendicular to the graphene plane on the charge transfer are reported. The authors demonstrate electric-and magnetic-field dependent charge transfer and a slow (>100 s) charge dynamics. Magneto-transport experiments in constant (≈0.005 T s −1 ) and pulsed (≈1000 T s −1 ) magnetic fields reveal pronounced hysteresis effects in the transfer characteristics of the FET. A magnetic time is used to explain and model differences in device behavior under fast (pulsed) and slowly (continuous) changing magnetic fields. The understanding of the dynamics of the charge transfer in perovskite/graphene heterostructures developed here is relevant for exploitation of these hybrid systems in electronics and optoelectronics, including ultrasensitive photon detectors and FETs for metrology.

show abstract

Moisture-Assisted near-UV Emission Enhancement of Lead-Free Cs₄CuIn₂Cl₁₂ Double Perovskite Nanocrystals

Cited by 31 publications

References 46 publications

Pb-free halide perovskites for solar cells, light-emitting diodes, and photocatalysts

Pb-free halide perovskites for solar cells, light-emitting diodes, and photocatalysts

Lead-free all-inorganic halide double perovskite materials for optoelectronic applications: progress, performance and design

Magnetic and Electric Field Dependent Charge Transfer in Perovskite/Graphene Field Effect Transistors

Contact Info

Product

Resources

About