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根据安尼索尔液体浸泡量定制多功能氨基盐,用于制造高效稳定的矿太阳能电池
Wenwen Zheng1, Tian Xia1, Xueqi Zhang1
1Guangxi Key Laboratory of Optical and Electronic Material and Devices, School of Materials Science and Engineering, Guilin University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China.
ACS applied materials & interfaces
|November 20, 2024
概括
使用PEAI,DEAI和GAI等有机氨基盐的新绿色无离子液浸泡 (ALS) 方法有效地使矿膜无活化,与传统的旋转涂层方法相比,显著提高了太阳能电池的效率和稳定性.
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:
- 矿太阳能电池 (PSC) 是下一代光伏的前景.
- 矿膜的表面缺陷限制了设备的性能和稳定性.
- 目前用于缺陷被动化的螺旋涂层 (SC) 方法不适合工业扩展.
研究的目的:
- 开发一种更具工业可行性的矿膜被动化后处理方法.
- 系统地研究不同有机氨基盐在被动化的机制.
- 提高PSC的功率转换效率 (PCE) 和稳定性.
主要方法:
- 对于矿膜的修改,采用了一种新的绿色无离子液浸泡 (ALS) 策略.
- 三种有机氨基盐乙烯胺 (PEAI),二甲胺 (DEAI) 和瓜尼丁 (GAI) 作为被动剂被使用.
- 进行了对ALS和SC方法对PEAI被动化的比较分析.
主要成果:
- 与PEAI,DEAI和GAI结合的ALS导致PCEs显著增强 (21.82%,21.74%,22.21%) 与原始设备 (19.95%) 相比.
- 确定了特定的被动化机制:表面缺陷的PEAI,格子缺陷的DEAI和PbI2残留的GAI.
- 在环境条件下,PEAI-ALS装置表现出卓越的稳定性,在1200小时后保持94%的效率,并且表现优于PEAI-SC (21.51% PCE).
结论:
- 该ALS方法提供了一个可扩展和有效的方法,用于使用有机氨基盐进行矿膜被动化.
- 调整氨基盐的选择允许有针对性的缺陷被动化,从而提高PSC性能.
- 这一战略为制造高效,稳定的矿太阳能电池提供了通用途径.
相关概念视频
01:25Basicity of Heterocyclic Aromatic Amines
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Heterocyclic amines, where the N atom is a part of an alicyclic system, are similar in basicity to alkylamines. Interestingly, the heterocyclic amine having a nitrogen atom as part of an aromatic ring has much less basicity than its corresponding alicyclic counterpart. For this reason, as presented in Figure 1, piperidine (pKb = 2.8) is significantly more basic than pyridine (pKb = 8.8).
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01:29Preparation of Amides
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Amides are synthesized by treating carboxylic acids with amines in the presence of dehydrating agents like dicyclohexylcarbodiimide (DCC).
The DCC-promoted synthesis of amides begins with the protonation of DCC by carboxylic acid. The protonation makes it a better acceptor. Next, the addition of carboxylate to the protonated carbodiimide gives a reactive acylating agent.
Subsequently, the amine acts as a nucleophile that attacks the acylating agent to form a tetrahedral intermediate. In the...
The DCC-promoted synthesis of amides begins with the protonation of DCC by carboxylic acid. The protonation makes it a better acceptor. Next, the addition of carboxylate to the protonated carbodiimide gives a reactive acylating agent.
Subsequently, the amine acts as a nucleophile that attacks the acylating agent to form a tetrahedral intermediate. In the...
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01:07Acid Halides to Amides: Aminolysis
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Aminolysis is a nucleophilic acyl substitution reaction, where ammonia or amines act as nucleophiles to give the substitution product. Acid halides react with ammonia, primary amines, and secondary amines to yield primary, secondary, and tertiary amides, respectively.
In the first step of the aminolysis mechanism, the amine attacks the carbonyl carbon of the acyl chloride to form a tetrahedral intermediate. In the second step, the carbonyl group is re-formed with the elimination of a chloride...
In the first step of the aminolysis mechanism, the amine attacks the carbonyl carbon of the acyl chloride to form a tetrahedral intermediate. In the second step, the carbonyl group is re-formed with the elimination of a chloride...
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