Isothermal pressure-derived metastable states in 2D hybrid perovskites showing enduring bandgap narrowing | |
Liu, G; Gong, J; Kong, LP; Schaller, RD; Hu, QY; Liu, ZX; Yan, S; Yang, WG; Stoumpos, CC; Kanatzidis, MG | |
刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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2018 | |
卷号 | 115期号:32页码:8076-8081 |
关键词 | ORGANOMETAL HALIDE PEROVSKITES SOLAR-CELLS INDUCED AMORPHIZATION EFFICIENCY WATER SIZE |
ISSN号 | 0027-8424 |
DOI | 10.1073/pnas.1809167115 |
文献子类 | 期刊论文 |
英文摘要 | Materials in metastable states, such as amorphous ice and supercooled condensed matter, often exhibit exotic phenomena. To date, achieving metastability is usually accomplished by rapid quenching through a thermodynamic path function, namely, heating-cooling cycles. However, heat can be detrimental to organic-containing materials because it can induce degradation. Alternatively, the application of pressure can be used to achieve metastable states that are inaccessible via heating-cooling cycles. Here we report metastable states of 2D organic-inorganic hybrid perovskites reached through structural amorphization under compression followed by recrystallization via decompression. Remarkably, such pressure-derived metastable states in 2D hybrid perovskites exhibit enduring bandgap narrowing by as much as 8.2% with stability under ambient conditions. The achieved metastable states in 2D hybrid perovskites via compression-decompression cycles offer an alternative pathway toward manipulating the properties of these "soft" materials. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.sinap.ac.cn/handle/331007/31005] ![]() |
专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
作者单位 | 1.Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA 2.Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China 3.Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 5.George Washington Univ, Dept Civil & Environm Engn, Inst Mat Sci, Washington, DC 20052 USA 6.Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA 7.Northern Illinois Univ, Dept Chem & Biochem, De Kalb, IL 60115 USA |
推荐引用方式 GB/T 7714 | Liu, G,Gong, J,Kong, LP,et al. Isothermal pressure-derived metastable states in 2D hybrid perovskites showing enduring bandgap narrowing[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(32):8076-8081. |
APA | Liu, G.,Gong, J.,Kong, LP.,Schaller, RD.,Hu, QY.,...&Xu, T.(2018).Isothermal pressure-derived metastable states in 2D hybrid perovskites showing enduring bandgap narrowing.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(32),8076-8081. |
MLA | Liu, G,et al."Isothermal pressure-derived metastable states in 2D hybrid perovskites showing enduring bandgap narrowing".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.32(2018):8076-8081. |
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