Low-Temperature Molten Salts Synthesis: CsPbBr3 Nanocrystals with High Photoluminescence Emission Buried in Mesoporous SiO2 [0.03%]
低温熔盐合成：埋藏在介孔SiO₂中的高光致发光CsPbBr₃纳米晶
Mai Ngoc An,Sungwook Park,Rosaria Brescia et al.
Mai Ngoc An et al.
Using mesoporous SiO2 to encapsulate CsPbBr3 nanocrystals is one of the best strategies to exploit such materials in devices. However, the CsPbBr3/SiO2 composites produced so far do not exhibit strong photoluminescence emission and, simulta...
Implementing Dopant-Free Hole-Transporting Layers and Metal-Incorporated CsPbI2Br for Stable All-Inorganic Perovskite Solar Cells [0.03%]
用于稳定全无机钙钛矿太阳能电池的不含掺杂剂空穴传输层和含金属CsPbI2Br
Sawanta S Mali,Jyoti V Patil,Julian A Steele et al.
Sawanta S Mali et al.
Mixed-halide CsPbI2Br perovskite is promising for efficient and thermally stable all-inorganic solar cells; however, the use of conventional antisolvent methods and additives-based hole-transporting layers (HTLs) currently hampers progress....
Halide Segregation in Mixed-Halide Perovskites: Influence of A-Site Cations [0.03%]
混合卤化物钙钛矿中的卤素分异及其A位阳离子的影响
Alexander J Knight,Juliane Borchert,Robert D J Oliver et al.
Alexander J Knight et al.
Mixed-halide perovskites offer bandgap tunability essential for multijunction solar cells; however, a detrimental halide segregation under light is often observed. Here we combine simultaneous in situ photoluminescence and X-ray diffraction...
Relaxed Current Matching Requirements in Highly Luminescent Perovskite Tandem Solar Cells and Their Fundamental Efficiency Limits [0.03%]
高效发光钙钛矿串联电池中的 relaxed current matching 要求及其本征效率极限
Alan R Bowman,Felix Lang,Yu-Hsien Chiang et al.
Alan R Bowman et al.
Perovskite-based tandem solar cells are of increasing interest as they approach commercialization. Here we use experimental parameters from optical spectroscopy measurements to calculate the limiting efficiency of perovskite-silicon and all...
High External Photoluminescence Quantum Yield in Tin Halide Perovskite Thin Films [0.03%]
高外部光致发光量子产率的锡卤化物钙钛矿薄膜
Isabella Poli,Guan-Woo Kim,E Laine Wong et al.
Isabella Poli et al.
We show that pristine thin films made of tin halide perovskite have external photoluminescence quantum yield comparable to that of lead halide perovskite, i.e., the material in use to prepare state-of-the-art perovskite solar cells. ...
Exploiting the Lability of Metal Halide Perovskites for Doping Semiconductor Nanocomposites [0.03%]
利用金属卤化物钙钛矿的不稳定性掺杂半导体纳米复合材料
Mariano Calcabrini,Aziz Genç,Yu Liu et al.
Mariano Calcabrini et al.
Cesium lead halides have intrinsically unstable crystal lattices and easily transform within perovskite and nonperovskite structures. In this work, we explore the conversion of the perovskite CsPbBr3 into Cs4PbBr6 in the presence of PbS at ...
Compositional Tuning of Carrier Dynamics in Cs2Na1- x Ag x BiCl6 Double-Perovskite Nanocrystals [0.03%]
Cs2Na1- x Ag x BiCl6双钙钛矿纳米晶的载流子动力学的组分调控
Dongxu Zhu,Juliette Zito,Valerio Pinchetti et al.
Dongxu Zhu et al.
We devised a hot-injection synthesis to prepare colloidal double-perovskite Cs2NaBiCl6 nanocrystals (NCs). We also examined the effects of replacing Na+ with Ag+ cations by preparing and characterizing Cs2Na1-x Ag x BiCl6 alloy NCs with x r...
Quinten A Akkerman,Liberato Manna
Quinten A Akkerman
Lattice Compression Increases the Activation Barrier for Phase Segregation in Mixed-Halide Perovskites [0.03%]
晶格压缩提高了混合卤化物钙钛相分离的活化能垒
Loreta A Muscarella,Eline M Hutter,Francesca Wittmann et al.
Loreta A Muscarella et al.
The bandgap tunability of mixed-halide perovskites makes them promising candidates for light-emitting diodes and tandem solar cells. However, illuminating mixed-halide perovskites results in the formation of segregated phases enriched in a ...
Reduction of the Lattice Thermal Conductivity of Polymer Semiconductors by Molecular Doping [0.03%]
聚合物半导体的晶格热导率通过分子掺杂得以降低
Osnat Zapata-Arteaga,Aleksandr Perevedentsev,Sara Marina et al.
Osnat Zapata-Arteaga et al.
Here we show that molecular doping of polymer thermoelectrics increases the electrical conductivity while reducing the thermal conductivity. A high-throughput methodology based on annealing and doping gradients within individual films is em...