Assessing the Drawbacks and Benefits of Ion Migration in Lead Halide Perovskites [0.03%]
评估铅卤钙钛矿中离子迁移的利弊
Kostiantyn Sakhatskyi,Rohit Abraham John,Antonio Guerrero et al.
Kostiantyn Sakhatskyi et al.
Since the inception of the unprecedented rise of halide perovskites for photovoltaic research, ion migration has shadowed this material class with undesirable hysteresis and degradation effects, limiting its practical implementations. Unfor...
On the Relative Importance of Li Bulk Diffusivity and Interface Morphology in Determining the Stripped Capacity of Metallic Anodes in Solid-State Batteries [0.03%]
固态电池中金属阳极剥离容量的相对重要性——锂体相扩散和界面形态的影响
Marco Siniscalchi,Junliang Liu,Joshua S Gibson et al.
Marco Siniscalchi et al.
Lithium metal self-diffusion is too slow to sustain large current densities at the interface with a solid electrolyte, and the resulting formation of voids on stripping is a major limiting factor for the power density of solid-state cells. ...
Slot-Die Coated Triple-Halide Perovskites for Efficient and Scalable Perovskite/Silicon Tandem Solar Cells [0.03%]
高效可扩展的钙钛矿/硅串联太阳能电池的三卤化物钙钛矿 slot-die 涂层技术
Ke Xu,Amran Al-Ashouri,Zih-Wei Peng et al.
Ke Xu et al.
Wide bandgap halide perovskite materials show promising potential to pair with silicon bottom cells. To date, most efficient wide bandgap perovskites layers are fabricated by spin-coating, which is difficult to scale up. Here, we report on ...
Giuseppe Nasti,Mahmoud Hussein Aldamasy,Marion Alwine Flatken et al.
Giuseppe Nasti et al.
Controlling the crystallization of perovskite in a thin film is essential in making solar cells. Processing tin-based perovskite films from solution is challenging because of the uncontrollable faster crystallization of tin than the most us...
Sobhan Neyrizi,Joep Kiewiet,Mark A Hempenius et al.
Sobhan Neyrizi et al.
Imidazolium cations enhance the performance of several electrodes in converting CO2 to CO in non-aqueous media. In this publication, we elucidate the origin of the function of imidazolium cations when exposed to Au electrodes in anhydrous a...
Onset Potential for Electrolyte Oxidation and Ni-Rich Cathode Degradation in Lithium-Ion Batteries [0.03%]
富镍阴极和电解液氧化分解的起始电位研究
Wesley M Dose,Weiqun Li,Israel Temprano et al.
Wesley M Dose et al.
High-capacity Ni-rich layered metal oxide cathodes are highly desirable to increase the energy density of lithium-ion batteries. However, these materials suffer from poor cycling performance, which is exacerbated by increased cell voltage. ...
Persistent Ion Accumulation at Interfaces Improves the Performance of Perovskite Solar Cells [0.03%]
界面处的离子积累可提高钙钛矿太阳能电池性能
Joshua A Kress,Claudio Quarti,Qingzhi An et al.
Joshua A Kress et al.
The mixed ionic-electronic nature of lead halide perovskites makes their performance in solar cells complex in nature. Ion migration is often associated with negative impacts-such as hysteresis or device degradation-leading to significant e...
2D PEA2SnI4 Inkjet-Printed Halide Perovskite LEDs on Rigid and Flexible Substrates [0.03%]
基于二维PEA2SnI4的卤化物钙钛矿喷墨打印刚性和柔性衬底LEDs
Giovanni Vescio,Jesus Sanchez-Diaz,Juan Luis Frieiro et al.
Giovanni Vescio et al.
Lead-free PEA2SnI4-based perovskite LEDs are successfully inkjet-printed on rigid and flexible substrates. Red-emitting devices (λmax = 633 nm) exhibit, under ambient conditions, a maximum external quantum efficiency (EQEmax) of 1% with a ...
Ammonium Formate as a Safe, Energy-Dense Electrochemical Fuel Ionic Liquid [0.03%]
一种安全的、能量密集型的电化学燃料离子液体：甲酸铵
Zachary J Schiffer,Sayandeep Biswas,Karthish Manthiram
Zachary J Schiffer
While solid and liquid energy carriers are advantageous due to their high energy density, many do not meet the efficiency requirements to outperform hydrogen. In this work, we investigate ammonium formate as an energy carrier. It can be pro...
Christian Prehal,Soumyadip Mondal,Ludek Lovicar et al.
Christian Prehal et al.
Capacity, rate performance, and cycle life of aprotic Li-O2 batteries critically depend on reversible electrodeposition of Li2O2. Current understanding states surface-adsorbed versus solvated LiO2 controls Li2O2 growth as surface film or as...