@misc{KruszyńskaOstapkoOzkayaetal., author = {Kruszyńska, Joanna and Ostapko, Jakub and Ozkaya, Veysel and Surucu, Belkis and Szawcow, Oliwia and Nikiforow, Kostiantyn and Hołdyński, Marcin and Tavakoli, Mohammad Mahdi and Yadav, Pankaj and Kot, Małgorzata and Kołodziej, Grzegorz Piotr and Wlazło, Mateusz and Satapathi, Soumitra and Akin, Seckin and Prochowicz, Daniel}, title = {Atomic Layer Engineering of Aluminum-Doped Zinc Oxide films for Efficient and Stable Perovskite Solar Cells}, series = {Advanced Materials Interfaces}, volume = {9}, journal = {Advanced Materials Interfaces}, number = {17}, issn = {2196-7350}, doi = {10.1002/admi.202200575}, pages = {8}, abstract = {Atomic layer deposition (ALD) has been considered as an efficient method to deposit high quality and uniform thin films of various electron transport materials for perovskite solar cells (PSCs). Here, the effect of deposition sequence in the ALD process of aluminum-doped zinc oxide (AZO) films on the performance and stability of PSCs is investigated. Particularly, the surface of AZO film is terminated by diethylzinc (DEZ)/H2O (AZO-1) or trimethylaluminum (TMA)/H2O pulse (AZO-2), and investigated with surface-sensitive X-ray photoelectron spectroscopy technique. It is observed that AZO-2 significantly enhances the thermal stability of the upcoming methylammonium lead iodide (MAPbI3) layer and facilitates charge transport at the interface as evidenced by photoluminescence spectroscopes and favorable interfacial band alignment. Finally, planar-type PSC with AZO-2 layer exhibits a champion power conversion efficiency of 18.09\% with negligible hysteresis and retains 82\% of the initial efficiency after aging for 100 h under ambient conditions (relative humidity 40 ± 5\%). These results highlight the importance of atomic layer engineering for developing efficient and stable PSCs.}, language = {en} }