Exceptional plasticity in the bulk single-crystalline van der Waals semiconductor InSe

doi:10.1126/science.aba9778

GSTDTAP > 气候变化

DOI	10.1126/science.aba9778
	Exceptional plasticity in the bulk single-crystalline van der Waals semiconductor InSe
	Tian-Ran Wei; Min Jin; Yuecun Wang; Hongyi Chen; Zhiqiang Gao; Kunpeng Zhao; Pengfei Qiu; Zhiwei Shan; Jun Jiang; Rongbin Li; Lidong Chen; Jian He; Xun Shi
	2020-07-31
发表期刊	Science
出版年	2020
英文摘要	Semiconductors are usually brittle and do not deform easily. Wei et al. found that bulk single crystals of indium selenide instead have excellent flexibility (see the Perspective by Han). The deformability comes from the compliant intralayer bonding between indium and selenium. The authors used these observations along with a previously discovered silver sulfide to determine a deformability factor for materials that may help find other deformable semiconductors. Science , this issue p. [542][1]; see also p. [509][2] Inorganic semiconductors are vital for a number of critical applications but are almost universally brittle. Here, we report the superplastic deformability of indium selenide (InSe). Bulk single-crystalline InSe can be compressed by orders of magnitude and morphed into a Möbius strip or a simple origami at room temperature. The exceptional plasticity of this two-dimensional van der Waals inorganic semiconductor is attributed to the interlayer gliding and cross-layer dislocation slip that are mediated by the long-range In-Se Coulomb interaction across the van der Waals gap and soft intralayer In-Se bonding. We propose a combinatory deformability indicator (Ξ) to prescreen candidate bulk semiconductors for use in next-generation deformable or flexible electronics. [1]: /lookup/doi/10.1126/science.aba9778 [2]: /lookup/doi/10.1126/science.abd4527
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/286866
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Tian-Ran Wei,Min Jin,Yuecun Wang,et al. Exceptional plasticity in the bulk single-crystalline van der Waals semiconductor InSe[J]. Science,2020.
APA	Tian-Ran Wei.,Min Jin.,Yuecun Wang.,Hongyi Chen.,Zhiqiang Gao.,...&Xun Shi.(2020).Exceptional plasticity in the bulk single-crystalline van der Waals semiconductor InSe.Science.
MLA	Tian-Ran Wei,et al."Exceptional plasticity in the bulk single-crystalline van der Waals semiconductor InSe".Science (2020).