Results 51 to 60 of about 19,509 (295)

Reduced Barrier for Ion Migration in Mixed-Halide Perovskites.

, 2021
Halide alloying in metal halide perovskites is a useful tool for optoelectronic applications requiring a specific bandgap. However, mixed-halide perovskites show ion migration in the perovskite layer, leading to phase segregation and reducing the long ...
Grimaldi, G. (Gialunca), Hutter, E.M. (Eline), Muscarella, L.A. (Loreta), Muscarella, Loreta A., Schmidt, Moritz C., McGovern, L. (Lucie), McGovern, Lucie, Ehrler, Bruno, Sub Inorganic Chemistry and Catalysis, Inorganic Chemistry and Catalysis, Hutter, Eline M., Futscher, Moritz H., Grimaldi, Gianluca, Schmidt, M.C. (Moritz), Ehrler, B. (Bruno), Futscher, M.H. (Moritz)   +15 more
core   +2 more sources

Inhibition of Phase Segregation in Cesium Lead Mixed-Halide Perovskites by B-Site Doping

iScience, 2020
Summary: The emergence of all-inorganic halide perovskites has shown great potential in photovoltaic and optoelectronic devices. However, the photo-induced phase segregation in lead mixed-halide perovskites has severely limited their application. Herein,
Daocheng Hong, Peiyang Zhao, Yu Du, Cheng Zhao, Yuren Xia, Zhihong Wei, Zhong Jin, Yuxi Tian   +7 more
doaj   +1 more source

Minimizing energy loss in two-dimensional tin halide perovskite solar cells—A perspective

APL Materials, 2021
Tin halide perovskites have desirable photoelectric properties but are very fragile to an oxidizing atmosphere. This represents a great challenge for their full practical potential in photovoltaic technologies.
Tao Zhang, Qiang Sun, Xiaoli Zhang, Yan Shen, Mingkui Wang   +4 more
doaj   +1 more source

Excitonic Properties of Vacancy Ordered Halide Double Perovskites: From Wannier to Frenkel excitons

, 2022
National audienceOver the past decade ABX3 halide perovskites based on Pb have emerged as a most-promising class of materials. To-date they have been employed for record-breaking solar-cells, highly-efficient lightemitters, new photo-catalysts and even ...
Even, Jacky, Volonakis, George, Cucco, Bruno, Kepenekian, Mikaël, Katan, Claudine   +4 more
core  

Spin Noise of a Halide Perovskite

Physical Review Letters
We report on first observation of spin noise in a strongly birefringent semiconductor -- halide perovskite single crystal MAPbI$_3$. The observed spin noise resonance is ascribed to free holes with a record spin dephasing time of 4 ns. The spin dynamics is found to be affected by the residual light absorption of the crystal providing renormalization of
V. O. Kozlov, N. I. Selivanov, C. C. Stoumpos, G. G. Kozlov, V. S. Zapasskii, Yu. V. Kapitonov, D. S. Smirnov, I. I. Ryzhov   +7 more
openaire   +3 more sources

Elucidation of the suppression of photoinduced segregation in 2D mixed halide, A2PbI2Br2: Critical role of A2PbBr4 photostability

iScience
Summary: 2D lead halide perovskites are used to improve device operational stability due to increased environmental stability and reduced ion migration compared to 3D perovskites.
Zhilin Ren, Zhengtian Yuan, Juraj Ovčar, Tik Lun Leung, Yanling He, Anita W.Y. Ho-Baillie, Ivor Lončarić, Jasminka Popović, Aleksandra B. Djurišić   +8 more
doaj   +1 more source

The study of new double perovskites K2AgAsX6 (X = Cl, Br) for energy-based applications

Journal of Taibah University for Science, 2023
Halide double perovskites are the best alternative to Pb-halide perovskites. These materials play an important role in renewable energy generation. Therefore, we explore the physical properties of K2AgAsX6 (X = Cl, Br) double halide perovskites using ...
Malak Azmat Ali, Razan A. Alshgari, Aboud Ahmed Awadh Bahajjaj, Mika Sillanpää   +3 more
doaj   +1 more source

Efficient Emission in Halide Layered Double Perovskites: The Role of Sb3+ Substitution in Cs4Cd1–xMnxBi2Cl12 Phosphors

, 2020
Layered halide perovskites and double perovskites optoelectronic properties have recently been the subject of intense research. Layered double perovskites represent the merging of both worlds, and as such, have the potential to further expand the already
Brenda, Vargas, Oscar, Ovalle-Encinia, Eduardo, Coutiño-Gonzalez, Diego, Solis-Ibarra, Citlali, Sánchez-Aké   +4 more
core   +1 more source

Recent progress with one-dimensional metal halide perovskites: from rational synthesis to optoelectronic applications

NPG Asia Materials, 2023
Metal halide perovskites can be readily synthesized, they exhibit tunable physical properties and excellent performance, and they are heavily studied optoelectronic materials. Compared to the typical three-dimensional perovskites, morphological-level one-
Dawei Duan, Chuangye Ge, Md Zahidur Rahaman, Chun-Ho Lin, Yumeng Shi, Haoran Lin, Hanlin Hu, Tom Wu   +7 more
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source