Facilitating All‐Inorganic Halide Perovskites Fabrication in Confined‐Space Deposition,Small Methods

当前位置： X-MOL 学术 › Small Methods › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Facilitating All‐Inorganic Halide Perovskites Fabrication in Confined‐Space Deposition
Small Methods ( IF 10.7 ) Pub Date : 2020-04-06 , DOI: 10.1002/smtd.202000102
Renyan Wang ₁ , Yasar Muhammad ₁ , Xiang Xu ₁ , Meng Ran ₁ , Qingfu Zhang ₁ , Junchuan Zhong ₁ , Fuwei Zhuge ₁ , Huiqiao Li ₁ , Lin Gan _{1,

2} , Tianyou Zhai ₁

Affiliation

2D all‐inorganic halide perovskites (2D AIHP) have attracted huge attention for their excellent optoelectronic properties and superior atmospheric stability for organic–inorganic halide perovskites. 2D AIHP has been fabricated by varied strategies, whereas a satisfied way to simultaneously reach good quality, dimensions, and uniformity is still far from achieved yet. Here, a direct thermal deposition method to synthesize 2D AIHP of lateral length up to ≈30 µm and uniform thickness down to ≈10 nm, which shows excellent optoelectronic performance comparable to the reported top‐level 2D AIHP, is proposed. A vertical mass transport instead of conventional horizontal mode is adopted, significantly enhancing the deposition stability. Furthermore, the morphologies of AIHP are switchable between nanowires and nanoflakes under the control of deposition temperature. This method may pave the way for uniform fabrication of 2D AIHP or AIHP‐based 2D heterostructures for various applications.

中文翻译：

在密闭空间沉积中促进全无机卤化物钙钛矿的制造

二维全无机卤化物钙钛矿（2D AIHP）因其出色的光电性能和有机-无机卤化物钙钛矿的出色大气稳定性而受到广泛关注。二维AIHP已通过多种策略制造而成，但要实现同时达到良好的质量，尺寸和均匀性的令人满意的方法仍远未实现。在此，提出了一种直接热沉积方法，该方法可以合成横向长度最高≈30µm且厚度均匀到≈10nm的2D AIHP，其光电性能与已报道的顶级2D AIHP相当。采用垂直传质代替传统的水平模式，显着提高了沉积稳定性。此外，在沉积温度的控制下，AIHP的形态可在纳米线和纳米薄片之间切换。这种方法可能为均匀制造各种应用的2D AIHP或基于AIHP的2D异质结构铺平道路。

更新日期：2020-04-06

点击分享查看原文

点击收藏

阅读更多本刊最新论文