CsPbIxBr3‐xguanidiniumperovskite solar cellsspontaneous interfacial manipulationtwo‐step interfacial passivationCesium-based all-inorganic halide perovskites solar cells (PSCs) have recently attracted increasing attention. Currently, due to the existence of high defects density and unoptimiz... 查看全部>...
本发明提供一种CsPbIxBr3‑x钙钛矿薄膜及其制备方法和应用。所述制备方法包括:提供包含卤化铅、卤化铯、4‑叔丁基吡啶和溶剂的钙钛矿前驱体溶液;对所述前驱体溶液进行成膜处理,之后依次进行第一退火处理、第二退火处理,从而制得CsPbIxBr3‑x钙钛矿薄膜;其中,所述第一退火处理的温度为30‑60℃,所述第二退...
提出了无机CsPbIxBr3-x钙钛矿中的B位掺杂策略主要是基于属于IIIA族、IVA族和VA族的不同B位元素、碱土金属、过渡金属和镧系金属,其已被阐明用于调整晶粒取向、钝化缺陷和提高载流子寿命。 阐述了应对当前问题的解决方案,并对进一步的战略进行了展望。 Erdi Akman et.al The Role of B-site Doping in All-inorgan...
全无机CsPbIxBr3-x钙钛矿太阳电池(PSCs)的优异热稳定性和合适的禁带宽度,其最高功率转换效率(PCE)达到21%,引起了光伏领域的广泛关注。尽管取得了显著的进步,但高性能的全无机CsPbIxBr3-xPSCs的发展仍然受到几个关键挑战的阻碍:表面的碘空位和欠配位的Pb2+,引起严重的非辐射复合损失,导致较低的开路电压;在水...
目前,由铯基(Cs+)组成的无机钙钛矿太阳能电池受到越来越多的关注,其显著优异的性能也一次次被表征.在本次主要工作中,我们通过实验探究报告了一种基于CsPbIxBr3-x(x=2或2.25)钙钛矿薄膜的全无机钙钛矿太阳能电池的性质,通过增加碘(I)的含量探究电池性质,改变了钙钛矿薄膜形态,提高了短路电流,开路电压,填充因子,...
These well-defined nano-particulate CsPbIxBr3-x perovskites were incorporated into solid-state DSSCs and tested as a new type of photosensitizers. The initial power conversion efficiency (PCE) of ca. 1.0 3.5 % based on relatively thin mesoporous TiO2 film (1 渭m) looks promising with many ...
In the meanwhile, both Bader charge analysis and charge density distribution show that the compound of MA(0.75)Cs(0.25)PbI(2)Br is the most stable among all the doped perovskite series. Moreover, it is clearly manifested that the impact of cesium is mainly embodied in the enhancement of ...