当前位置：
X-MOL 学术
›
ACS Appl. Energy Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Stable High-Performance Perovskite Solar Cells via Passivation of the Grain Boundary and Interface
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2021-07-02 , DOI: 10.1021/acsaem.1c01013 Leilei Gu 1 , Shubo Wang 1 , Yiqi Chen 1 , Yibo Xu 1 , Ruiyi Li 1 , Di Liu 1 , Xiang Fang 1 , Xuguang Jia 1 , Ningyi Yuan 1 , Jianning Ding 2
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2021-07-02 , DOI: 10.1021/acsaem.1c01013 Leilei Gu 1 , Shubo Wang 1 , Yiqi Chen 1 , Yibo Xu 1 , Ruiyi Li 1 , Di Liu 1 , Xiang Fang 1 , Xuguang Jia 1 , Ningyi Yuan 1 , Jianning Ding 2
Affiliation
|
The carrier recombination at the perovskite grain boundary and layer interface is the main factor that limits the efficiency of the perovskite solar cells (PSCs). Herein, such recombination loss is significantly improved by inducing a new adduct [lead(II) iodide–tetramethylene sulfoxide (PbI2–TMSO)] into the perovskite precursor solution (this adduct can stably exist in the solution). After annealing, the grain boundary of the perovskite film can be passivated by the annealed-remaining PbI2. Notably, PbI2–TMSO changes the crystallization kinetics, resulting in large grain size and high crystallinity of the perovskite film. Subsequently, phenethylammonium iodide (PEAI) is further used to passivate the interface between perovskite and hole transporting layer for an excellent efficiency (22.84%). The two-dimensional perovskite formed by the reaction of PEAI and the residual PbI2 (on the surface) improves the thermal stability. Moreover, a larger-area module (substrate: 4 × 4 cm2, active area: 7.2 cm2) with an efficiency of 16.82% is assembled successfully, indicating its scalability in passivation for PSCs.
中文翻译：
通过晶界和界面钝化获得稳定的高性能钙钛矿太阳能电池
钙钛矿晶界和层界面处的载流子复合是限制钙钛矿太阳能电池（PSC）效率的主要因素。在此，通过将新的加合物[碘化铅（II）-四亚甲基亚砜（PbI 2 -TMSO）]引入钙钛矿前驱体溶液（该加合物可以稳定存在于溶液中），这种复合损失得到显着改善。退火后，钙钛矿膜的晶界可以被退火后残留的PbI 2钝化。值得注意的是，PbI 2–TMSO 改变了结晶动力学，导致钙钛矿薄膜的晶粒尺寸大，结晶度高。随后，进一步使用苯乙基碘化铵 (PEAI) 钝化钙钛矿和空穴传输层之间的界面，以获得出色的效率 (22.84%)。PEAI与残留的PbI 2 (在表面)反应形成的二维钙钛矿提高了热稳定性。此外，成功组装了效率为 16.82%的大面积模块（基板：4 × 4 cm 2，活性面积：7.2 cm 2），表明其在 PSC 钝化方面的可扩展性。
更新日期：2021-07-26
中文翻译：
通过晶界和界面钝化获得稳定的高性能钙钛矿太阳能电池
钙钛矿晶界和层界面处的载流子复合是限制钙钛矿太阳能电池（PSC）效率的主要因素。在此，通过将新的加合物[碘化铅（II）-四亚甲基亚砜（PbI 2 -TMSO）]引入钙钛矿前驱体溶液（该加合物可以稳定存在于溶液中），这种复合损失得到显着改善。退火后，钙钛矿膜的晶界可以被退火后残留的PbI 2钝化。值得注意的是，PbI 2–TMSO 改变了结晶动力学，导致钙钛矿薄膜的晶粒尺寸大，结晶度高。随后，进一步使用苯乙基碘化铵 (PEAI) 钝化钙钛矿和空穴传输层之间的界面，以获得出色的效率 (22.84%)。PEAI与残留的PbI 2 (在表面)反应形成的二维钙钛矿提高了热稳定性。此外，成功组装了效率为 16.82%的大面积模块（基板：4 × 4 cm 2，活性面积：7.2 cm 2），表明其在 PSC 钝化方面的可扩展性。
京公网安备 11010802027423号