Journal ArticleDOI
Binary Organic Solar Cells Breaking 19% via Manipulating the Vertical Component Distribution
Yanan Wei,Zhihao Chen,Guanyu Lu,Na Yu,Congqi Li,Jinhua Gao,Xiaobin Gu,Xiaotao Hao,Guanghao Lu,Zheng Tang,Jian Zhang,Zhixiang Wei,Xin Zhang,Hui Huang +13 more
TLDR
In this paper , the vertical component distribution can significantly influence the photovoltaic performance of organic solar cells (OSCs), mainly due to its impact on exciton dissociation and charge-carrier transport and recombination.Abstract:
The variation of the vertical component distribution can significantly influence the photovoltaic performance of organic solar cells (OSCs), mainly due to its impact on exciton dissociation and charge‐carrier transport and recombination. Herein, binary devices are fabricated via sequential deposition (SD) of D18 and L8‐BO materials in a two‐step process. Upon independently regulating the spin‐coating speeds of each layer deposition, the optimal SD device shows a record power conversion efficiency (PCE) of 19.05% for binary single‐junction OSCs, much higher than that of the corresponding blend casting (BC) device (18.14%). Impressively, this strategy presents excellent universality in boosting the photovoltaic performance of SD devices, exemplified by several nonfullerene acceptor systems. The mechanism studies reveal that the SD device with preferred vertical components distribution possesses high crystallinity, efficient exciton splitting, low energy loss, and balanced charge transport, resulting in all‐around enhancement of photovoltaic performances. This work provides a valuable approach for high‐efficiency OSCs, shedding light on understanding the relationship between photovoltaic performance and vertical component distribution.read more
Citations
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Journal ArticleDOI
Fibrillization of Non‐Fullerene Acceptors Enables 19% Efficiency Pseudo‐Bulk Heterojunction Organic Solar Cells
Donghui Li,Nan Deng,Yiwei Fu,Chuanhang Guo,Bojun Zhou,Liang Wang,Jinggao Zhou,Dan Li,Wei Wei Liu,Kai Wang,Yanming Sun,Tao-jiao Wang +11 more
TL;DR: In this paper , the fibrillization of small molecular NFA L8-BO with the assistance of fused-ring solvent additive 1-fluoronaphthalene (FN) to substantially improve device power conversion efficiency (PCE) is demonstrated.
Journal ArticleDOI
Over 19% Efficiency Organic Solar Cells by Regulating Multidimensional Intermolecular Interactions
Chenyu Han,Jianxiao Wang,Shuai Zhang,Liangliang Chen,Fuzhen Bi,Junjie Wang,Chunyan Yang,Pengchao Wang,Yonghai Li,Xichang Bao +9 more
TL;DR: In this article , the authors investigated the complicated relationship between photovoltaic conversion and multidimensional intermolecular interactions in the active layers of organic solar cells, and highlighted the importance of multi-dimensional intermolescular interactions and their synergistic effects.
Journal ArticleDOI
19.10% Efficiency and 80.5% Fill Factor Layer‐by‐Layer Organic Solar Cells Realized by 4‐Bis(2‐Thienyl)Pyrrole‐2,5‐Dione Based Polymer Additives for Inducing Vertical Segregation Morphology
TL;DR: In this article , a new method of using conjugated polymers as the additives to optimize the morphology for improving the photovoltaic performances of layer-by-layer (LbL) organic solar cells is reported.
Journal ArticleDOI
Device Performance of Emerging Photovoltaic Materials (Version 3)
Osbel Almora,Derya Baran,Guillermo C. Bazan,Carlos I. Cabrera,Sule Erten-Ela,Karen Forberich,Fei Guo,Jens Hauch,Anita Ho-Baillie,T. Jesper Jacobsson,René A. J. Janssen,Thomas Kirchartz,Nikos Kopidakis,Maria Antonietta Loi,Richard R. Lunt,Xavier Mathew,Michael D. McGehee,Jie Min,David B. Mitzi,Mohammad Khaja Nazeeruddin,Jenny Nelson,Ana Flávia Nogueira,Ulrich W. Paetzold,Barry P. Rand,Uwe Rau,Henry J. Snaith,Eva L. Unger,Lídice Vaillant-Roca,Chenchen Yang,Hin-Lap Yip,Christoph J. Brabec +30 more
TL;DR: In this paper , the best achievements in the performance of emerging photovoltaic devices in diverse emerging PV research subjects are summarized, as reported in peer-reviewed articles in academic journals since August 2021.
Journal ArticleDOI
Y‐Type Non‐Fullerene Acceptors with Outer Branched Side Chains and Inner Cyclohexane Side Chains for 19.36% Efficiency Polymer Solar Cells
TL;DR: In this paper , two Y-type non-fullerene acceptors of BTP-Cy•4F and BTP•Cy−4Cl were designed and synthesized by adopting outer branched side chains and inner cyclohexane side chains.
References
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18% Efficiency organic solar cells
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TL;DR: Progress is summarized, aiming to describe the molecular design strategy, to provide insight into the structure-property relationship, and to highlight the challenges the field is facing, with emphasis placed on most recent nonfullerene acceptors that demonstrated top-of-the-line photovoltaic performances.
Journal ArticleDOI
Non-fullerene acceptors with branched side chains and improved molecular packing to exceed 18% efficiency in organic solar cells
Chao Li,Jiadong Zhou,Jiali Song,Jinqiu Xu,Huotian Zhang,Xuning Zhang,Jing Guo,Lei Zhu,Donghui Wei,Guangchao Han,Jie Min,Yuan Zhang,Zengqi Xie,Yuanping Yi,He Yan,Feng Gao,Feng Liu,Yanming Sun +17 more
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Journal ArticleDOI
Single-Junction Organic Photovoltaic Cell with 19% Efficiency
Yong Cui,Ye Xu,Huifeng Yao,Pengqing Bi,Ling Hong,Jianqi Zhang,Yunfei Zu,Tao Zhang,Jinzhao Qin,Junzhen Ren,Zhihao Chen,Chang He,Xiaotao Hao,Zhixiang Wei,Zhixiang Wei,Jianhui Hou +15 more
TL;DR: In this paper, an active layer comprising a new widebandgap polymer donor named PBQx-TF and a new low-bandgap non-fullerene acceptor (NFA) named eC9-2Cl is rationally designed.
Journal ArticleDOI
Critical review of the molecular design progress in non-fullerene electron acceptors towards commercially viable organic solar cells
Andrew Wadsworth,Maximilian Moser,Adam Marks,Mark Little,Nicola Gasparini,Nicola Gasparini,Christoph J. Brabec,Derya Baran,Iain McCulloch,Iain McCulloch +9 more
TL;DR: This review explores the structure-property relationships of a library of non-fullerene acceptors, highlighting the important chemical modifications that have led to progress in the field and provides an outlook for future innovations in electron acceptors for use in organic photovoltaics.