Liu Xiao-Ke, Gao Feng
Department of Physics, Chemistry and Biology (IFM) , Linköping University , Linköping 58183 , Sweden.
J Phys Chem Lett. 2018 May 3;9(9):2251-2258. doi: 10.1021/acs.jpclett.8b00755. Epub 2018 Apr 18.
Recently, lead halide perovskite materials have attracted extensive interest, in particular, in the research field of solar cells. These materials are fascinating "soft" materials with semiconducting properties comparable to the best inorganic semiconductors like silicon and gallium arsenide. As one of the most promising perovskite family members, organic-inorganic hybrid Ruddlesden-Popper perovskites (HRPPs) offer rich chemical and structural flexibility for exploring excellent properties for optoelectronic devices, such as solar cells and light-emitting diodes (LEDs). In this Perspective, we present an overview of HRPPs on their structural characteristics, synthesis of pure HRPP compounds and thin films, control of their preferential orientations, and investigations of heterogeneous HRPP thin films. Based on these recent advances, future directions and prospects have been proposed. HRPPs are promising to open up a new paradigm for high-performance LEDs.
最近，卤化铅钙钛矿材料引起了广泛关注，尤其是在太阳能电池研究领域。这些材料是迷人的“软”材料，其半导体特性可与硅和砷化镓等最佳无机半导体相媲美。作为最有前途的钙钛矿家族成员之一，有机-无机杂化的Ruddlesden-Popper钙钛矿（HRPPs）为探索用于光电器件（如太阳能电池和发光二极管（LED））的优异性能提供了丰富的化学和结构灵活性。在这篇展望文章中，我们概述了HRPPs的结构特征、纯HRPP化合物和薄膜的合成、其择优取向的控制以及异质HRPP薄膜的研究。基于这些最新进展，我们提出了未来的方向和前景。HRPPs有望为高性能LED开辟新的范例。
