使用液晶溶剂进行有机晶的工程生长
F Scott Wilkinson1, Ronald F Norwood, Joseph M McLellan
1Department of Chemistry, Western Washington University, 516 High Street, Bellingham, WA 98225, USA.
Journal of the American Chemical Society
|December 21, 2006
概括
研究人员开发了一种新方法,用于制造高质量的有机分子晶体薄膜. 这种技术可以控制晶体的生长和方向,克服了电子和光子应用的一个主要障碍.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 晶体学 晶体学是指结晶学.
背景情况:
- 有机分子晶体薄膜表现出有前途的电子,光子和化学性能.
- 它们的性能对结构不完美,域大小和晶体学方向高度敏感.
- 在有利的条件下,使用受控的微观结构生产高质量的片仍然是一个重大挑战.
研究的目的:
- 引入一种新的技术,用于制备高质量的有机分子晶体薄膜.
- 为了能够控制晶体学方向和晶体生长习惯.
- 促进有机电子材料的基础研究和实际应用.
主要方法:
- 一种混合方法,将大气压蒸汽相沉积与溶液相生长相结合起来.
- 使用热热的液晶溶剂进行薄层生长.
- 作为一个模型系统,研究有机半导体四烯.
主要成果:
- 这种方法产生了相对较大的有机晶体.
- 控制了结晶学方向和生长习惯.
- 证明了与各种基质和有机材料相容的温和加工条件.
结论:
- 开发的技术为生产高质量的有机分子晶体薄膜提供了可行的解决方案.
- 这种方法促进了受控的微观结构组织,这对于高级应用至关重要.
- 这些发现为改善基础研究和有机电子技术的技术进步铺平了道路.
相关概念视频
Crystal Growth: Principles of Crystallization
Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent – the...
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent – the...
Recrystallization: Solid–Solution Equilibria
Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...


