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Recent Advancements in Crystalline Pb-Free Halide Double Perovskites

Crystals, 2020
Lead halide perovskites have gained more and more attention because of their ease of synthesis and excellent photoelectric properties including a large absorption coefficient, long carrier lifetime, long carrier diffusion length, and high carrier ...
Muhammad Usman, Qingfeng Yan
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A Review on Cs-Based Pb-Free Double Halide Perovskites: From Theoretical and Experimental Studies to Doping and Applications

Molecules, 2021
Despite the progressive enhancement in the flexibility of Pb-based perovskites for optoelectronic applications, regrettably, they are facing two main challenges; (1) instability, which originates from using organic components in the perovskite structure,
Fatemeh Heidari Gourji, Dhayalan Velauthapillai   +1 more
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Observation of Extraordinary Vibration Scatterings Induced by Strong Anharmonicity in Lead‐Free Halide Double Perovskites [PDF]

Advanced Science
Lead‐free halide double perovskites provide a promising solution for the long‐standing issues of lead‐containing halide perovskites, i.e., the toxicity of Pb and the low stability under ambient conditions and high‐intensity illumination.
Guang Wang, Jiongzhi Zheng, Jie Xue, Yixin Xu, Qiye Zheng, Geoffroy Hautier, Haipeng Lu, Yanguang Zhou   +7 more
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Strong Electron–Phonon Coupling Induced Self‐Trapped Excitons in Double Halide Perovskites

Advanced Energy & Sustainability Research, 2023
Double halide perovskites exhibit impressive potential for the self‐trapped exciton (STEs) luminescence. However, the detailed mechanism of the physical nature during the formation process of STEs in double perovskites is still ambiguous.
Baian Chen, Rui Chen, Bolong Huang
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Lead-Free Halide Double Perovskites: A Review of the Structural, Optical, and Stability Properties as Well as Their Viability to Replace Lead Halide Perovskites

Metals, 2018
Perovskite solar cells employ lead halide perovskite materials as light absorbers. These perovskite materials have shown exceptional optoelectronic properties, making perovskite solar cells a fast-growing solar technology.
Edson Meyer, Dorcas Mutukwa, Nyengerai Zingwe, Raymond Taziwa   +3 more
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Potential lead-free small band gap halide double perovskites Cs2CuMCl6 (M = Sb, Bi) for green technology [PDF]

Scientific Reports, 2021
Explorations of stable lead-free perovskites have currently achieved substantial interest to overcome the instability and avoid toxicity related issue faced with the lead-based perovskites.
Muskan Nabi, Dinesh C. Gupta
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Spin Qubits Candidate in Transition-Metal-Ion doped Halide Double Perovskites [PDF]

Nature Communications
Solid-state spin qubits offer a promising route toward scalable quantum technologies. Here we demonstrate that, despites of a nuclear-spin-rich host of halide double perovskites (HDPs), transition-metal centers (Cr3+ and Fe3+ ions) are a good candidate ...
Sakarn Khamkaeo, Kunpot Mopoung, Kingshuk Mukhuti, Maarten W. de Dreu, Anna Dávid, Muyi Zhang, Mats Fahlman, Feng Gao, Peter C. M. Christianen, Irina A. Buyanova, Weimin M. Chen, Yuttapoom Puttisong   +11 more
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DFT studies of the role of anion variation in physical properties of Cs2NaTlBr6−xClx (x = 0, 1, 2, 3, 4, 5 and 6) mixed halide double perovskites for optoelectronics [PDF]

Royal Society Open Science
Halide double perovskites have various benefits over lead-based perovskites due to their suitable optical absorption efficiency, higher stability, tunable bandgap, large carrier mobility, easy availability and low cost.
Mohammed Mehedi Hasan, Nazmul Hasan, Alamgir Kabir   +2 more
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Impact of halide variation on the optoelectronic properties of double perovskites [PDF]

Scientific Reports
Halide double perovskites of $$A_{2}B(I)B(III)X_{6}$$ (A = Cs, B(I) = Ag, B(III) = Bi, and X = Cl, Br) have gained a lot of attention as an alternative to lead perovskites due to their similar defect tolerance, low toxicity, high stability, high ...
Deepak Choudhary, Mandeep Kaur, Govind Sharma, Rahul Palsaniya, Swarnkesh Loyalka, Satpal Singh, Updesh Verma, Prashant Yadav, Manendra   +8 more
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Broadband NIR-II Emission with Wide Excitation Range in Cs₂WCl₆ Double Perovskites Utilizing Re⁴⁺ Doping [PDF]

Nanomaterials
Halide double perovskites with near-infrared (NIR) emission are promising for optoelectronic applications. NIR-II (1000–1700 nm) emission, in particular, is attractive due to its strong tissue penetration, high spatial resolution, and low biological ...
Yu Xiao, Xiaobo Hu, Ziqian Jiang, Chuanli Wu, Xiuxun Han   +4 more
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