5 Result(s)
within
Naoki Higashitarumizu
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Article
Open AccessLong operating lifetime mid-infrared LEDs based on black phosphorus
Black phosphorus (BP) is a narrow bandgap layered semiconductor promising for mid-infrared optoelectronic applications. BP-based devices have been shown to surpass state-of-the-art mid-infrared detectors and l...
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Article
Anomalous thickness dependence of photoluminescence quantum yield in black phosphorous
Black phosphorus has emerged as a unique optoelectronic material, exhibiting tunable and high device performance from mid-infrared to visible wavelengths. Understanding the photophysics of this system is of in...
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Article
Open AccessChiral germanium micro-gears for tuning orbital angular momentum
Group IV light sources with vertical emission and non-zero orbital-angular momentum (OAM) promise to unlock many novel applications. In this report, we demonstrate cylindrically symmetrical germanium micro-gea...
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Article
Open AccessPurely in-plane ferroelectricity in monolayer SnS at room temperature
2D van der Waals ferroelectrics have emerged as an attractive building block with immense potential to provide multifunctionality in nanoelectronics. Although several accomplishments have been reported in ferr...
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Article
Fabrication and Surface Engineering of Two-Dimensional SnS Toward Piezoelectric Nanogenerator Application
Mechanical exfoliation is performed to fabricate ultrathin SnS layers, and chemical/thermal stability of SnS layers is discussed in comparison with GeS, toward piezoelectric nanogenerator application. Both SnS...
