Johannes Novak Hansen,Hector Prats,Karl Krøjer Toudahl et al.
Johannes Novak Hansen et al.
The search for cheap and abundant alternatives to Pt for the hydrogen evolution reaction (HER) has led to many efforts to develop new catalysts. Although the discovery of promising catalysts is often reported, none can compete with Pt in in...
Stable Tetrasubstituted Quinone Redox Reservoir for Enhancing Decoupled Hydrogen and Oxygen Evolution [0.03%]
用于提升解耦氢气和氧气释放的稳定四取代醌类化合物储能体系
Fei Wang,Hongyuan Sheng,Wenjie Li et al.
Fei Wang et al.
Redox reservoirs (RRs) may be used to decouple the two half-reactions of water electrolysis, enabling spatial and temporal separation of hydrogen and oxygen evolution. Organic RRs are appealing candidates for this application; however, thei...
Aashutosh Mistry,Alejandro A Franco,Samuel J Cooper et al.
Aashutosh Mistry et al.
Electrochemical systems function via interconversion of electric charge and chemical species and represent promising technologies for our cleaner, more sustainable future. However, their development time is fundamentally limited by our abil...
Seán R Kavanagh,Aron Walsh,David O Scanlon
Seán R Kavanagh
CdTe is currently the largest thin-film photovoltaic technology. Non-radiative electron-hole recombination reduces the solar conversion efficiency from an ideal value of 32% to a current champion performance of 22%. The cadmium vacancy (VCd...
Revealing Charge Carrier Mobility and Defect Densities in Metal Halide Perovskites via Space-Charge-Limited Current Measurements [0.03%]
基于空间电荷限制电流测量的金属卤化物钙钛矿中电荷载流子迁移率和缺陷态密度的研究
Vincent M Le Corre,Elisabeth A Duijnstee,Omar El Tambouli et al.
Vincent M Le Corre et al.
Space-charge-limited current (SCLC) measurements have been widely used to study the charge carrier mobility and trap density in semiconductors. However, their applicability to metal halide perovskites is not straightforward, due to the mixe...
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. ...