Giant anisotropic photonics in the 1D van der Waals semiconductor fibrous red phosphorus

Luojun Du*, Yanchong Zhao, Linlu Wu, Xuerong Hu, Lide Yao, Yadong Wang, Xueyin Bai, Yunyun Dai, Jingsi Qiao, Md Gius Uddin, Xiaomei Li, Jouko Lahtinen, Xuedong Bai, Guangyu Zhang, Wei Ji, Zhipei Sun

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

4 Lataukset (Pure)

Abstrakti

A confined electronic system can host a wide variety of fascinating electronic, magnetic, valleytronic and photonic phenomena due to its reduced symmetry and quantum confinement effect. For the recently emerging one-dimensional van der Waals (1D vdW) materials with electrons confined in 1D sub-units, an enormous variety of intriguing physical properties and functionalities can be expected. Here, we demonstrate the coexistence of giant linear/nonlinear optical anisotropy and high emission yield in fibrous red phosphorus (FRP), an exotic 1D vdW semiconductor with quasi-flat bands and a sizeable bandgap in the visible spectral range. The degree of photoluminescence (third-order nonlinear) anisotropy can reach 90% (86%), comparable to the best performance achieved so far. Meanwhile, the photoluminescence (third-harmonic generation) intensity in 1D vdW FRP is strong, with quantum efficiency (third-order susceptibility) four (three) times larger than that in the most well-known 2D vdW materials (e.g., MoS2). The concurrent realization of large linear/nonlinear optical anisotropy and emission intensity in 1D vdW FRP paves the way towards transforming the landscape of technological innovations in photonics and optoelectronics.

AlkuperäiskieliEnglanti
Artikkeli4822
Sivumäärä10
JulkaisuNature Communications
Vuosikerta12
Numero1
DOI - pysyväislinkit
TilaJulkaistu - 10 elokuuta 2021
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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