Extraordinary photoluminescence and strong temperature/angle-dependent Raman responses in few-layer phosphorene.

By Shuang Zhang, Jiong Yang, Renjing Xu, Fan Wang, Weifeng Li, Muhammad Ghufran, Yong‐Wei Zhang, Zongfu Yu, Gang Zhang, Qinghua Qin and 1 more. ACS Nano, 2014

644 citations recorded by the source corpus.

Phosphorene is a new family member of two-dimensional materials. We observed strong and highly layer-dependent photoluminescence in few-layer phosphorene (two to five layers). The results confirmed the theoretical prediction that few-layer phosphorene has a direct and layer-sensitive band gap. We also demonstrated that few-layer phosphorene is more sensitive to temperature modulation than graphene and MoS2 in Raman scattering. The anisotropic Raman response in few-layer phosphorene has enabled us to use an optical method to quickly determine the crystalline orientation without tunneling electron microscopy or scanning tunneling microscopy. Our results provide much needed experimental information about the band structures and exciton nature in few-layer phosphorene.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/0f90011a5e7328d456d5aa4bc2e8a3878231db40

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In Materials Chemistry

1. Yong‐Wei Zhang
2. Gang Zhang
3. Yongqing Cai
4. Z. Ong
5. V. Sorkin
6. Xingzhu Chen
7. Xiujian Zhao
8. Pengfei Chen

Citations in the corpus

• The rising star of 2D black phosphorus beyond graphene: synthesis, properties and electronic applications (2017, background): “Synthesis of 2D black phosphorus (phosphorene) Since 2014, research on the 2D black phosphorus, which displays tunable band structures with respect to number of layers, high carrier mobility and palpable anisotropy in electronic, optical as well as phonon properties, has been thriving and frenetic [”
• Anisotropic optical and electronic properties of two-dimensional layered germanium sulfide (2017, background): “The optical excitation and emission processes can contribute to the anisotropic PL properties of GeS [6, 43].”
• Electronic Properties of Phosphorene/Graphene and Phosphorene/Hexagonal Boron Nitride Heterostructures (2015, background): “Meanwhile, a wealth of theoretical studies were performed to examine its anisotropic electronic structure,(34,35) large excitonic interaction,(36,37) and novel photonic responses.(38,39) First-principles calculations were performed to understand the effects of defects(40,41) and external stimuli, su”
• Biodegradable black phosphorus-based nanospheres for in vivo photothermal cancer therapy (2016, background): “As a new member of 2D materials, atomically thin black phosphorus (BP) has many potential applications in electronics and optoelectronics 23–31 .”