【摘要】：二維原子晶體材料簡稱二維材料,因載流子遷移和熱量擴(kuò)散都被限制在二維平面內(nèi),展現(xiàn)出了許多奇特的性質(zhì)而受到了廣泛關(guān)注。二維材料的帶隙可調(diào)特性在場效應(yīng)管、光電器件、熱電器件等領(lǐng)域應(yīng)用廣泛。另外二維材料的自旋自由度和谷自由度的可控性使得二維材料在自旋電子學(xué)和谷電子學(xué)等領(lǐng)域也引發(fā)了深入的研究。不同的二維材料由于晶體結(jié)構(gòu)的特殊性質(zhì)導(dǎo)致了不同的電學(xué)特性或者光學(xué)特性的各向異性,包括拉曼光譜、光致發(fā)光光譜、二階諧波譜、光吸收譜、熱導(dǎo)率、電導(dǎo)率等性質(zhì)的各向異性。這些各向異性特性在偏振光電器件、偏振熱電器件、仿生器件、偏振光探等領(lǐng)域擁有巨大的發(fā)展?jié)摿�。二維材料的各向異性還能夠用于實(shí)現(xiàn)器件性能的最優(yōu)化。文章介紹了各種二維材料的各向異性的最新研究進(jìn)展。
[Abstract]:Two-dimensional atomic crystal materials, short for two-dimensional materials, due to carrier transport and heat diffusion are confined in the two-dimensional plane, showing a lot of strange properties, so it has been paid more and more attention. Field effect transistors, optoelectronic devices, thermoelectric devices and so on are widely used in two-dimensional materials. In addition, the spin degree of freedom and the controllability of valley degree of freedom of two-dimensional materials also lead to further research in the fields of spin electronics and valley electronics. Due to the special properties of the crystal structure, different two-dimensional materials have different anisotropy of electrical or optical properties, including Raman spectra, photoluminescence spectra, second-order harmonic spectra, optical absorption spectra, thermal conductivity. Anisotropy of conductivity and other properties. These anisotropic properties have great potential in the fields of polarization optoelectronic devices, polarized thermoelectric devices, bionic devices, polarized light detection and so on. Anisotropy of two-dimensional materials can also be used to optimize device performance. This paper introduces the latest research progress of anisotropy of various two-dimensional materials.
【作者單位】： 華中科技大學(xué)光學(xué)與電子信息學(xué)院華中科技大學(xué)創(chuàng)新研究院;
【基金】：國家自然科學(xué)基金面上項(xiàng)目(51572096) 中組部“千人計(jì)劃”青年項(xiàng)目 華中科技大學(xué)啟動(dòng)資金
【分類號】：O73

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