Metastable Dion-Jacobson 2D structure enables efficient and stable perovskite solar cells,Science

当前位置： X-MOL 学术 › Science › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Metastable Dion-Jacobson 2D structure enables efficient and stable perovskite solar cells
Science ( IF 44.7 ) Pub Date : 2022-01-06 , DOI: 10.1126/science.abj2637
Fei Zhang ₁ , So Yeon Park ₁ , Canglang Yao _{2,

3} , Haipeng Lu ₁ , Sean P Dunfield _{4,

5,

6} , Chuanxiao Xiao ₄ , Soňa Uličná ₇ , Xiaoming Zhao ₈ , Linze Du Hill ₉ , Xihan Chen ₁ , Xiaoming Wang _{2,

3} , Laura E Mundt ₇ , Kevin H Stone ₇ , Laura T Schelhas _{1,

7} , Glenn Teeter ₄ , Sean Parkin ₁₀ , Erin L Ratcliff _{9,

11,

12} , Yueh-Lin Loo ₈ , Joseph J Berry _{4,

5,

13} , Matthew C Beard ₁ , Yanfa Yan _{2,

3} , Bryon W Larson ₁ , Kai Zhu ₁

Affiliation

Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.
Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606, USA.
Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo, Toledo, OH 43606, USA.
Materials Science Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.
Renewable and Sustainable Energy Institute, University of Colorado, Boulder, CO 80309, USA.
Materials Science and Engineering Program, University of Colorado, Boulder, CO 80309, USA.
SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA.
Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ 85721, USA.
Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA.
Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721, USA.
Department of Materials Science and Engineering, University of Arizona, Tucson, AZ 85721, USA.
Department of Physics, University of Colorado, Boulder, CO 80309, USA.

Directing efficient hole transport Surface defects in three-dimensional perovskites can decrease performance but can be healed with coatings based on two-dimensional (2D) perovskite such as Ruddlesden-Popper phases. However, the bulky organic groups of these 2D phases can lead to low and anisotropic charge transport. F. Zhang et al . show that a metastable polymorph of a Dion-Jacobson 2D structure based on asymmetric organic molecules reduced the energy barrier for hole transport and their transport through the layer. When used as a top layer for a triple-cation mixed-halide perovskite, a solar cell retained 90% of its initial power conversion efficiency of 24.7% after 1000 hours of operation at approximately 40°C in nitrogen. —PDS

中文翻译：

亚稳态 Dion-Jacobson 二维结构可实现高效稳定的钙钛矿太阳能电池

引导有效的空穴传输三维钙钛矿中的表面缺陷会降低性能，但可以使用基于二维 (2D) 钙钛矿的涂层（如 Ruddlesden-Popper 相）来修复。然而，这些 2D 相的庞大有机基团会导致低电荷传输和各向异性电荷传输。F.张等人. 表明基于不对称有机分子的 Dion-Jacobson 2D 结构的亚稳态多晶型物降低了空穴传输的能垒及其通过层的传输。当用作三阳离子混合卤化物钙钛矿的顶层时，在大约 40°C 的氮气中运行 1000 小时后，太阳能电池保持其初始功率转换效率 24.7% 的 90%。—PDS

更新日期：2022-01-06

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11