对于可扩展的矿工艺,真空,气体和抗溶剂火的建模和基本动力学
Simon Ternes1,2,3, Felix Laufer2, Ulrich W Paetzold2,3
1CHOSE-Center for Hybrid and Organic Solar Energy, Department of Electrical Engineering, University of Rome "Tor Vergata", via del Politecnico 1, Rome, 00133, Italy.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|February 2, 2024
概括
研究人员开发了一个定量框架来比较矿膜结晶方法. 这一新的基准,即超和率,有助于优化混合矿光伏制造,以提高可扩展性和效率.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可再生能源可再生能源是可再生能源.
背景情况:
- 混合矿光伏 (PVs) 提供具有成本效益的制造和高功率转换效率.
- 高性能矿薄膜利用火技术进行快速结晶.
- 目前的方法缺乏标准化指标来比较不同的火技术.
研究的目的:
- 开发第一个定量建模框架,用于比较气体,抗溶剂和真空火方法.
- 为评估矿膜结晶过程的有效性提供一个基准.
- 提高对矿制造过程中质量转移动态的理解和控制.
主要方法:
- 开发了气体,抗溶剂和真空火的定量建模框架.
- 在真空室中利用动态厚度测量.
- 分析了基于干燥动态和材料性能的质量转移动态.
- 创建了一个开源,模块化和可扩展的软件框架.
主要成果:
- 建立了基于质量转移动态的不同火技术的定量比较.
- 建议在临界度处的超和率作为火效率的决定性基准.
- 在真空 (10^-3 - 10^-1 s^-1),静态气体 (10^-5 - 10^-3 s^-1),动态气体 (10^-2 - 10^0 s^-1) 和反溶剂 (10^2 s^-1) 火的定量超和率.
- 证明了工艺参数对质量转移动态的影响.
结论:
- 开发的框架和基准可以更深入地了解矿结晶的过程.
- 超和率为混合矿制造提供了可转移和可扩展的指标.
- 这项工作将矿设备制造从一种艺术转变为一个明确的工艺工程学科.
相关概念视频
01:17Work Done During Volume Change
In mechanics, work is done on an object when the force acting on it displaces the object. In thermodynamics, work done on a system can be estimated when the system's volume changes during any thermodynamic process.
Consider a gas confined to a cylinder fitted with a movable piston at one end. If the gas expands from volume V1 to volume V2, it exerts a force on the piston, such that the piston moves by a distance dr.
The work done by the gas on the piston can be expressed as
Consider a gas confined to a cylinder fitted with a movable piston at one end. If the gas expands from volume V1 to volume V2, it exerts a force on the piston, such that the piston moves by a distance dr.
The work done by the gas on the piston can be expressed as
01:24Heat and Free Expansion
The work done by a thermodynamic system depends not only on the initial and final states but also on the intermediate states—that is, on the path. Like work, when heat is added to a thermodynamic system, it undergoes a change of state, and the state attained depends on the path from the initial state to the final state. Consider an ideal gas cylinder fitted with a piston. When the cylinder is heated at a constant temperature, the gas molecules absorb energy and expand slowly in a controlled...
01:20Virtual Work
The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
01:24The Kinetic Model of Gases
The kinetic model of gases explains the properties of a perfect gas using three main assumptions: molecules move in ceaseless random motion, their size is negligible compared to the distances between them, and they do not interact except during perfectly elastic collisions. The total energy of a gas is the sum of the kinetic energies of all its constituent molecules. The pressure exerted by the gas arises from the continual bombardment of the container walls by billions of colliding molecules.
01:30Work and Heat
Work and heat are fundamental concepts in thermodynamics, denoting the transfer of energy. Work is the energy transferred due to the movement of an object under force, represented as the dot product of the force and displacement vectors. An example can be seen in a gas confined by a frictionless piston. The gas performs work on its surroundings when the piston moves outward, reducing the system's energy.This infinitesimal amount of work (dw) performed by the system against a constant external...
01:30Typical Model Studies
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.