相关实验视频

Updated: Jul 4, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

混合化物矿的化物分离结晶通过in situGIWAXS揭示

Lena Merten¹, Timo Eberle¹, Ekaterina Kneschaurek¹

¹Institute of Applied Physics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany.

ACS applied materials & interfaces

|February 9, 2024

概括

照明会导致混合化物矿 (MAPb(BrI_1-) ₃) 中的化物分离,影响设备的性能. 这项研究揭示了化物和化物相的独特结晶路径,解释了制造过程中的分离.

科学领域:

材料科学材料科学材料科学
固态化学固态化学
太阳能光伏发电是如何实现的

背景情况:

混合化物矿 (MAPb(BrI_1-) ₃) 是一个有前途的光伏材料.
在照明下化物分离降低了它们的性能和设备性能.
化物分离的基本机制仍然不清楚.

研究的目的:

研究MAPb ((BrI_1-) ₃薄膜的结晶路径和混合行为.
了解制造途径在化物分离中的作用.
阐明驱动阶段分离的基本过程.

主要方法:

制造MAPb(BrI_1-)₃薄膜,具有不同的化物比率.
在现场放牧发生率广角X射线散射 (GIWAXS) 分析.
气灭和酸制造路径的比较.

主要成果:

对化物和化物丰富的相观察到明显的结晶路径.
化矿 (MAPbBr₃) 在旋转涂层过程中结晶.
以化物为基础的分离物形成中间溶剂复合物,在回火后转化为矿.
在初始膜形成过程中,有化物分离的证据.

结论:

混合化物矿膜由最初分离的化物相形成.
平行结晶路径有助于化物分离.
加热对于从分离的前体中形成混合化物矿至关重要.

关键词:

结晶化结晶化的过程.化物分离的分离方法在现场 GIWAXSS GIWAXS 佩洛夫斯基特是一种矿.太阳能光伏发电是如何实现的薄膜是一种薄膜.

更多相关视频

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Published on: February 27, 2017

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework

Published on: April 9, 2018

相关概念视频

Acid Halides to Ketones: Gilman Reagent

Acid Halides to Ketones: Gilman Reagent

Lithium dialkyl cuprate, also known as Gilman reagents, selectively reduces acid halides to ketones. The acid chloride is treated with Gilman reagent at −78 °C in the presence of ether solution to produce a ketone in good yield.
As shown below, the mechanism proceeds in two steps. First, one of the alkyl groups of the reagent acts as a nucleophile and attacks the acyl carbon of the acid chloride to form a tetrahedral intermediate. This is followed by the reformation of the carbon–oxygen...