倒插销钙钛矿太阳能电池(PSC)易于加工,但需要改善界面特性并减少能量损失,以防止增加有效光伏面积时效率下降。在这里,我们报道了一系列可以调节钙钛矿表面的聚二茂铁分子,从而能够构建小面积和大面积的 PSC。我们发现钙钛矿-二茂铁基相互作用形成杂化复合物,具有增强的表面配位强度和激活的电子态,从而降低界面非辐射复合和电荷传输电阻损失。由此产生的PSC在小面积器件上实现了高达26.08%的增强效率,在大面积器件(1.0208 cm 2 )下实现了高达24.51%的增强效率。此外,在1太阳光照和65°C下,大面积PSC在最大功率点连续运行2000小时后仍保持>92%的初始效率。
Communication between Co2(CO)4dppm Units via Polyferrocenylalkyne Linkages
摘要:
The synthesis and characterization of a family of ethynylbi- and ethynylterferrocenyls, I-Fc(2)C=CR, Fc(2)C=CR, and Fc(2)(C=CR)(2) (R = Fc, SiMe3), I-Fc(3)C=CSiMe3, Fc(3)C=CSiMe3, Fc(3)(C=CSiMe3)(2), and their Co-2(CO)(6) and Co-2(CO)(4)dppm complexes are described. The structure adopted by Fc(2){[Co-2(CO)(4)dppm C2SiMe3]}(2) minimizes the steric interactions between the biferrocene and dppm moieties. Electrochemical studies show that identical redox centers-ferrocenyl termini, Co-2(CO)(4)dppm units, or ferrocenyl groups in the core-communicate independently with each other.