全聚合物太阳能电池和光电探测器,通过含有抗氧化剂侧链的聚合物来提高稳定性
Chunyang Zhang1, Ao Song1, Qiri Huang1
1Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, People's Republic of China.
Nano-micro letters
|May 29, 2023
概括
将抗氧化剂丁酸酸 (BHT) 侧链纳入聚合物中,显著提高有机太阳能电池 (OSC) 和有机光电探测器 (OPD) 的光稳定性. 这导致了设备在持续照射下性能和寿命的提高.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 聚合物化学 聚合物化学
背景情况:
- 有机光伏 (OPV) 的工业化,包括有机太阳能电池 (OSC) 和有机光探测器 (OPD),由于长期和光稳定性不佳而受到阻碍.
- 开发稳定高效的材料对于推进OPV技术至关重要.
研究的目的:
- 设计和合成具有抗氧化剂侧链的新型聚合物,以提高OSC和OPD的光稳定性.
- 为了研究由丁酸 (BHT) 终结的侧链对聚合物特性和器件性能的影响.
主要方法:
- 合成两种系列的聚合物:PTzBI-EHp-BTBHTx和N2200-BTBHTx,其中BHT侧链的比例各不相同.
- 全聚合物太阳能电池 (全PSC) 和光电探测器 (OPD) 的制造和表征.
- 在连续照射下评估设备性能,包括功率转换效率 (PCE) 和暗电流.
主要成果:
- 加入BHT侧链增强了聚合物的光稳定性,对分子量,吸收光谱和能量水平的影响微不足道.
- 基于含BHT的聚合物的所有PSC都显示了PCE的改善 (接近10%),并且在长时间照射下 (300小时) 降低了降解.
- 在长时间照射 (400小时) 后,OPD显示较低的暗电流和增强的稳定性.
结论:
- 具有抗氧化剂BHT侧链的聚合物为提高OSC和OPD光稳定性和运行寿命提供了可行的策略.
- 开发的材料显示了有机光伏设备商业化的巨大潜力.
- 这种方法为创造更强大,更耐用的有机电子设备提供了途径.
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