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    Roadmap on commercialization of metal halide perovskite photovoltaics
    (Bristol : IOP Publishing, 2023) Feng, Shien-Ping; Cheng, Yuanhang; Yip, Hin-Lap; Zhong, Yufei; Fong, Patrick W. K.; Li, Gang; Ng, Annie; Chen, Cong; Castriotta, Luigi Angelo; Matteocci, Fabio; Vesce, Luigi; Saranin, Danila; Carlo, Aldo Di; Wang, Puqun; Wei Ho, Jian; Hou, Yi; Lin, Fen; Aberle, Armin G; Song, Zhaoning; Yan, Yanfa; Chen, Xu; Yang, Yang (Michael); Syed, Ali Asgher; Ahmad, Ishaq; Leung, Tiklun; Wang, Yantao; Lin, JingYang; Ng, Alan Man Ching; Li, Yin; Ebadi, Firouzeh; Tress, Wolfgang; Richardson, Giles; Ge, Chuangye; Hu, Hanlin; Karimipour, Masoud; Baumann, Fanny; Tabah, Kenedy; Pereyra, Carlos; Raga, Sonia R.; Xie, Haibing; Lira-Cantu, Monica; Khenkin, Mark V.; Visoly-Fisher, Iris; Katz, Eugene A.; Vaynzof, Yana; Vidal, Rosario; Yu, Guicheng; Lin, Haoran; Weng, Shuchen; Wang, Shifeng; Djurišić, Aleksandra B.
    Perovskite solar cells (PSCs) represent one of the most promising emerging photovoltaic technologies due to their high power conversion efficiency. However, despite the huge progress made not only in terms of the efficiency achieved, but also fundamental understanding of the relevant physics of the devices and issues which affect their efficiency and stability, there are still unresolved problems and obstacles on the path toward commercialization of this promising technology. In this roadmap, we aim to provide a concise and up to date summary of outstanding issues and challenges, and the progress made toward addressing these issues. While the format of this article is not meant to be a comprehensive review of the topic, it provides a collection of the viewpoints of the experts in the field, which covers a broad range of topics related to PSC commercialization, including those relevant for manufacturing (scaling up, different types of devices), operation and stability (various factors), and environmental issues (in particular the use of lead). We hope that the article will provide a useful resource for researchers in the field and that it will facilitate discussions and move forward toward addressing the outstanding challenges in this fast-developing field.
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    Bis(stearoyl) Sulfide: A Stable, Odor-Free Sulfur Precursor for High-Efficiency Metal Sulfide Quantum Dot Photovoltaics
    (Weinheim : Wiley-VCH, 2023) Albaladejo‐Siguan, Miguel; Prudnikau, Anatol; Senina, Alina; Baird, Elizabeth C.; Hofstetter, Yvonne J.; Brunner, Julius; Shi, Juanzi; Vaynzof, Yana; Paulus, Fabian
    The synthesis of metal sulfide nanocrystals is a crucial step in the fabrication of quantum dot (QD) photovoltaics. Control over the QD size during synthesis allows for precise tuning of their optical and electronic properties, making them an appealing choice for electronic applications. This flexibility has led to the implementation of QDs in both highly-efficient single junction solar cells and other optoelectronic devices including photodetectors and transistors. Most commonly, metal sulfide QDs are synthesized using the hot-injection method utilizing a toxic, and air- and moisture-sensitive sulfur source: bis(trimethylsilyl) sulfide ((TMS)2S). Here, bis(stearoyl) sulfide (St2S) is presented as a new type of air-stable sulfur precursor for the synthesis of sulfide-based QDs, which yields uniform, pure, and stable nanocrystals. Photovoltaic devices based on these QDs are equally efficient as those fabricated by (TMS)2S but exhibit enhanced operational stability. These results highlight that St2S can be widely adopted for the synthesis of metal sulfide QDs for a range of optoelectronic applications.