Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at   room temperature

doi:10.1039/c7nr01894k

CORC > 北京大学 > 工学院

	Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature
	Shen, Chao ; Du, Wenna ; Wu, Zhiyong ; Xing, Jun ; Ha, Son Tung ; Shang, Qiuyu ; Xu, Weigao ; Xiong, Qihua ; Liu, Xinfeng ; Zhang, Qing
刊名	NANOSCALE
	2017
关键词	PEROVSKITE SOLAR-CELLS VAPOR-DEPOSITION DEPENDENCE FILMS SEMICONDUCTOR GROWTH LASERS RAMAN GAPS
DOI	10.1039/c7nr01894k
英文摘要	Recently, organic-inorganic lead halide perovskites have gained great attention for their breakthrough in photovoltaic and optoelectronics. However, their thermal transport properties that affect the device lifetime and stability are still rarely explored. In this work, the thermal conductivity properties of single crystal CH3NH3PbI3 platelets grown by chemical vapor deposition are studied via non-contact micro-photoluminescence (PL) spectroscopy. We developed a measurement methodology and derived expressions suitable for the thermal conductivity extraction for micro-sized perovskites. The room temperature thermal conductivity of similar to 0.14 +/- 0.02 W m(-1) K-1 is extracted from the dependence of the PL peak energy on the excitation laser power. On changing the film thickness from 80 to 400 nm, the thermal conductivity does not show noticeable variations, indicating the minimal substrate effects due to the advantage of the suspended configuration. The ultra-low thermal conductivity of perovskites, especially thin films, suggests their promising applications for thermal isolation, such as thermal insulation and thermoelectricity.; Peking University; Thousand Talents program from the Chinese government; Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics; Ministry of Science and Technology [2016YFA0200700]; National Natural Science Foundation of China [21673054]; Key Research Program of Frontier Science, CAS [QYZDB-SSW-SYS031]; NSFC [11404324]; Singapore National Research Foundation through an NRF Investigatorship Award [NRF-NRFI2015-03]; Competitive Research Program [NRF-CRP14-2014-03]; Singapore Ministry of Education [MOE2013-T2-1-049, MOE2015-T2-1-047, MOE2015-T1-001-175, MOE2017-T1-113-16]; SCI(E); ARTICLE; 24; 8281-8287; 9
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472630]
专题	工学院
推荐引用方式 GB/T 7714	Shen, Chao,Du, Wenna,Wu, Zhiyong,et al. Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature[J]. NANOSCALE,2017.
APA	Shen, Chao.,Du, Wenna.,Wu, Zhiyong.,Xing, Jun.,Ha, Son Tung.,...&Zhang, Qing.(2017).Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature.NANOSCALE.
MLA	Shen, Chao,et al."Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature".NANOSCALE (2017).