Isothermal pressure-derived metastable states in 2D hybrid perovskites showing enduring bandgap narrowing

doi:10.1073/pnas.1809167115

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	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
	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.