@article{3fc0f6ddae964d82a91f74348d864018,
title = "Carbon quantum dot additive engineering for efficient and stable carbon-based perovskite solar cells",
abstract = "Additive engineering is an effective method to manipulate formation of methyl ammonium metal halide perovskite film for high performance perovskite solar cells (PSCs). In this work, carbon quantum dots (CQDs) prepared from two different carbon sources named as A-CQD and CA-CQD respectively are applied as additives into CH3NH3PbI3 precursor solution via one-step processing. Film morphology and charge transport dynamics of perovskite films with different CQDs additives are investigated. It is found that the A-CQDs incorporated perovskite film has large grain size, excellent crystallinity, enhanced carrier transport ability and high hydrophobic surface. Carbon-based perovskite solar cell using the A-CQD additive shows increased cell performance with the maximum power conversion efficiency (PCE) of 13.28%. While, PCE of the PSCs modified by the CA-CQD additive and without additive are 7.85% and 10.50% respectively. The A-CQD additive modified PSC also presents good long-term stability and maintains more than 90% of its initial PCE after 200 h.",
keywords = "Additive, Carbon quantum dots (CQDs), Functional group, Perovskite solar cell, Stability",
author = "Tingting Xu and Zhi Wan and Hebing Tang and Chenhui Zhao and Shaoshen Lv and Yonghua Chen and Lixin Chen and Qiquan Qiao and Wei Huang",
note = "Funding Information: The authors sincerely thank financial support from the National Natural Science Foundation of China (51972274), the Fundamental Research Funds for the Central Universities (310201911cx035), China Postdoctoral Science Foundation (2019M653730), Natural Science Basis Research Plan in Shaanxi Province (2019JM-328), and the Seed Foundation of Innovation and Creation for Graduate Students in Northwestern Polytechnical University (ZZ2019035, ZZ2019231). We would like to thank the Analytical & Testing Center of NPU for the SEM and AFM measurements. Funding Information: The authors sincerely thank financial support from the National Natural Science Foundation of China ( 51972274 ), the Fundamental Research Funds for the Central Universities ( 310201911cx035 ), China Postdoctoral Science Foundation ( 2019M653730 ), Natural Science Basis Research Plan in Shaanxi Province ( 2019JM-328 ), and the Seed Foundation of Innovation and Creation for Graduate Students in Northwestern Polytechnical University ( ZZ2019035 , ZZ2019231 ). We would like to thank the Analytical & Testing Center of NPU for the SEM and AFM measurements. Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",
year = "2021",
month = apr,
day = "5",
doi = "10.1016/j.jallcom.2020.157784",
language = "English (US)",
volume = "859",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier",
}