@article{c41238b587c549ed8428f20a7bfb1d70,
title = "PEOz-PEDOT:PSS Composite Layer: A Route to Suppressed Hysteresis and Enhanced Open-Circuit Voltage in a Planar Perovskite Solar Cell",
abstract = "The successful commercialization of perovskite solar cells (Pvs-SCs) calls for the need to find low-temperature processable interlayers with outstanding charge-transport features. In this work, we strategically blend poly(2-ethyl-2-oxazoline) (PEOz) with PEDOT:PSS as the modified hole transport layer (HTL) to achieve high-efficiency P-I-N CH3NH3PbI3 Pvs-SCs. The PEOz-PEDOT:PSS HTL exhibits enhanced features over the conventional layer including the following: (1) promoting perovskite with enlarged grain sizes to decrease the perovskite layer's recombination, (2) increasing the work function of the HTL, and (3) decreasing the noncapacitive current in Pvs-SCs. Remarkably, we demonstrate a 17.39% power conversion efficiency with very low hysteresis and high Voc values of 1.075 V for Pvs-SCs with PEOz-PEDOT:PSS.",
keywords = "PEDOT:PSS, PEOz, V, hysteresis, perovskite solar cells",
author = "Di Huang and Tenghooi Goh and Lyndsey McMillon-Brown and Jaemin Kong and Yifan Zheng and Jiao Zhao and Yang Li and Suling Zhao and Zheng Xu and Taylor, {Andr{\'e} D.}",
note = "Funding Information: All the authors appreciate the National Natural Science Foundation of China (61575019) and NSF-PECASE award (CBET-0954985) for full support of this report. D.H. also would like to thank to the China Scholarship Council (CSC). Moreover, the SEM and AFM measurements were collected from the Institute for Nanoscience and Quantum Engineering (YINQE). The authors also thank Dr. Song Zhao from Prof. Menachem Elimelech{\textquoteright}s group at Yale University for helping test the contact angle. Funding Information: All the authors appreciate the National Natural Science Foundation of China (61575019) and NSF-PECASE award (CBET-0954985) for full support of this report. D.H. also would like to thank to the China Scholarship Council (CSC). Moreover, the SEM and AFM measurements were collected from the Institute for Nanoscience and Quantum Engineering (YINQE). The authors also thank Dr. Song Zhao from Prof. Menachem Elimelech's group at Yale University for helping test the contact angle.",
year = "2018",
month = aug,
day = "1",
doi = "10.1021/acsami.8b05949",
language = "English (US)",
volume = "10",
pages = "25329--25336",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "30",
}