相关实验视频

Updated: Aug 2, 2026

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

具有成本效益的酸基前体溶液减轻了高效和稳定的矿太阳能电池的异质核化

Wei Pu¹, Bo Li¹, Yang Liu¹

¹College of Materials and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, 710055, China.

Small (Weinheim an der Bergstrasse, Germany)

|October 13, 2024

概括

研究人员开发了一种新的,具有成本效益的矿太阳能电池 (PSC) 制造方法,使用乙二 (ACN) 溶剂. 这种基于ACN的方法通过提高片质量和减少缺陷来提高PSC的性能和稳定性.

科学领域:

材料科学材料科学材料科学
可再生能源可再生能源是可再生能源.
太阳能光伏发电是如何实现的

背景情况:

溶液处理是高效矿太阳能电池 (PSC) 的关键.
溶剂的选择对矿膜的形成和质量产生了重大影响.
添加剂可以改善薄膜形成,但可能导致异质核和缺陷.

研究的目的:

为矿前体溶液开发一个具有成本效益和高效的溶剂系统.
调查乙二 (ACN) 作为弱协调溶剂对矿膜形成和设备性能的影响.
为了提高矿太阳能电池的稳定性和功率转换效率 (PCE).

主要方法:

开发了一种矿前体溶液,使用乙二 (ACN) 作为弱协调宿主溶剂,取代N,N-二甲基形式胺 (DMF).
研究了通过二甲基硫氧化物溶解的中间相到α-FAPbI₃的结晶路径.
使用基于ACN的前体溶液制造的PSC和最小模块.

主要成果:

与DMF相比,基于ACN的溶液减少了异质核和组成异质.
增强矿膜结晶性和减少缺陷状态.
在PSC中达到23.62%的PCE,在最小模块中达到20.13%.
在MPPT下,PSC在800小时的连续照明后保持了97%以上的效率.

结论:

乙二为PSC制造提供了DMF的经济有效的替代品,将成本降低一半.
基于ACN的方法促进单一结晶路径,提高片质量和设备性能.
这一战略提高了PSC的效率和长期的运营稳定性.

关键词:

亚尼烯酸是什么意思竞争力协调协调竞争力结晶的路径结晶的路径矿石太阳能电池的太阳能电池是什么稳定的稳定性稳定的稳定性

更多相关视频

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

相关概念视频

Factors Affecting Solubility

Factors Affecting Solubility

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:

Leveling Effect and Non-Aqueous Acid-Base Solutions

Leveling Effect and Non-Aqueous Acid-Base Solutions

This lesson defines the leveling effect in acidic and basic solutions and its role in aqueous and non-aqueous solutions. It is essential to understand the competing nature of various species in a chemical system.
The Leveling Effect of a Solvent
A generic acid (HA) reacts with the generic base (B-) to yield the corresponding conjugate base (A-) and conjugate acid (HB):

Leveling Effect

Leveling Effect

In acid-base chemistry, the leveling effect refers to the limitation imposed by the solvent on the strength of acids and bases in solution. When a base stronger than the solvent's conjugate base is used, it deprotonates the solvent until the base is entirely consumed, making it ineffective against weaker acids. Conversely, an acid stronger than the solvent's conjugate acid protonates the solvent until the acid is depleted, rendering it ineffective against weaker bases. Essentially, the solvent...