通过分子工程来提高p型材料的孔移动性,用于高效的矿太阳能电池
Tamer Yeşil1, Adem Mutlu1, Sirin Siyahjani Gültekin1
1Solar Energy Institute, Ege University, Izmir 35100, Turkey.
ACS omega
|August 7, 2023
概括
为矿太阳能电池合成了新的恒星形三二烯衍生孔输送材料 (HTM). 与传统选择相比,这些材料提供了高效的孔运输和更高的功率转换效率.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 太阳能光伏发电是如何实现的
背景情况:
- 孔承载材料 (HTM) 对于高效的矿太阳能电池 (PSC) 性能至关重要.
- 开发具有成本效益和高性能的HTM仍然是PSC研究的一个关键挑战.
- 由于其电子性质,triazatruxene衍生物为设计新型HTM提供了一个有前途的支架.
研究的目的:
- 为了合成新的星形三二烯衍生物HTMs (TAT-TY1和TAT-TY2) 用于三 PSCs.
- 评估这些新型HTM在电荷传输,形态和功率转换效率方面的性能.
- 为先进的HTMs展示一个简单的合成路径.
主要方法:
- 从廉价的前体中合成三二衍生物 (TAT-TY1,TAT-TY2) 和核心结构 (TAT-H).
- 描述HTM属性,包括最高占用分子轨道 (HOMO) 水平和光发光.
- 使用合成的HTM和分析设备性能指标,制造和测试三 PSC.
主要成果:
- 成功合成了TAT-TY1和TAT-TY2与适合的HOMO水平 (-5.17 eV和-5.2 eV,分别) 的矿太阳能电池.
- 与TAT-H相比,TAT-TY1和TAT-TY2的洞运输效率提高,洞移动性高出一个数量级.
- 实现了高达17.5% (TAT-TY1) 和16.3% (TAT-TY2) 的功率转换效率 (PCE),在某些情况下超过了参考Spiro-OMeTAD.
结论:
- 星形三二烯衍生物 (TAT-TY1,TAT-TY2) 是三酸矿太阳能电池的有效HTM.
- 由于结构修改,合成的HTM表现出改善的孔运输特性和膜形态.
- 这些新型的HTM可以通过不复杂的程序进行合成,为PSC应用提供了具有成本效益的替代方案.
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