Semiconductor Photonic Nanocavity on a Paper Substrate

Kim, Sejeong; Ko, Hyojin; Lee, Chul-Won; Kim, Minkwan; Kim, Ki Soo; Lee, Jun Young; Shin, Kwanwoo; Cho, Yong-Hoon

doi:10.1002/adma.201603368

Cited by 13 publications

(10 citation statements)

References 31 publications

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“…3 shows the electric field intensity profile of the fundamental mode. The cavity is designed by modulating the periodicity whilst fixing the air hole radius [ 33 ]. The structure consists of a total of 31 air holes, 15 of which are modulated to create a cavity in the center, and the remaining 8 on each end act as photonic mirrors.…”

Section: Resultsmentioning

confidence: 99%

Design of photonic microcavities in hexagonal boron nitride

Kim¹,

Toth²,

Aharonovich³

2018

Beilstein J. Nanotechnol.

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We propose and design photonic crystal cavities (PCCs) in hexagonal boron nitride (hBN) for diverse photonic and quantum applications. Two dimensional (2D) hBN flakes contain quantum emitters which are ultra-bright and photostable at room temperature. To achieve optimal coupling of these emitters to optical resonators, fabrication of cavities from hBN is therefore required to maximize the overlap between cavity optical modes and the emitters. Here, we design 2D and 1D PCCs using anisotropic indices of hBN. The influence of underlying substrates and material absorption are investigated, and spontaneous emission rate enhancements are calculated. Our results are promising for future quantum photonic experiments with hBN.102

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Section: Resultsmentioning

confidence: 99%

Design of photonic microcavities in hexagonal boron nitride

Kim¹,

Toth²,

Aharonovich³

2018

Beilstein J. Nanotechnol.

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“…Being driven by these advantages, research fields studying these materials push their limit further to achieve more efficient photonic and electronic devices. Recent achievements in the application of silk and paper in the field of photonics have covered a variety of applications, including optical elements for sensing applications such as silk‐based diffraction optical elements ( Figure a), [ 12 ] photonic crystal cavities on a paper substrate (Figure 1b), [ 3 ] noble photonic structures based on silk and paper for random lasing (Figure 1c,d), and even several attempts to replace conventional optical elements, such as optical fiber (Figure 1e,f). [ 13 ] In this progress report, we will review the recent achievements in green photonics and electronics based on silk and paper and discuss their impact and prospects in future green technology that places environmental sustainability as its foremost concern.…”

Section: Materials For Green Technologymentioning

confidence: 99%

Section: Materials For Green Technologymentioning

confidence: 99%

“…In this regard, we recently demonstrated a semiconductor nanophotonic cavity on a paper substrate functioning as a sensor by using a paper substrate as a fluid channel for water. [ 3 ] Instead of using cellulose fiber complex as a substrate, photonic structures using cellulose‐based materials have also been widely investigated, ranging from photonic crystals [ 4 ] to random lasers. [ 5 ] Electronics based on paper or nanocellulose are also intriguing, as these materials possess well‐proven dielectric properties for their use in field‐effect transistors (FET) and resistive memory devices.…”

Section: Introductionmentioning

confidence: 99%

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Silk and Paper: Progress and Prospects in Green Photonics and Electronics

Lee

Kim

Cho

2020

Advanced Sustainable Systems

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side effects such as air pollution, climate change, declines in natural resources, and technological inequality. The new responsibility of scientists and engineers is to develop a new sustainable technology that is sustainable and that does not further deplete the planet's natural resources. Specifically, silicon-based electronics and optoelectronic devices have short lifespans. For example, the average lifespans for mobile phones and laptops are less than four years on average, [1] and some sensing devices have even shorter lifespans, generating waste after a short time period. Therefore, environmental issues, such as the depletion of scarce resources and production of toxic byproducts, became an area of increased concern. Technological advances in photonics and electronics, in particular, are now facing the issue of depletion of oil, the foremost source of organic materials. The generation of chemical and inorganic wastes during the process of photonic and electronic device production is also a pressing problem. In addition, costly devices may increase the inequality gap between developed and developing countries, which is a pressing problem, particularly in the area of medical applications. Therefore, it is an essential task for researchers to investigate potential material candidates that are readily degradable without any harmful byproducts, and that are also abundant in nature, thus reducing their cost. Many materials of biological origin have been investigated with the goal of achieving sustainable technology so far. In this review, we summarize recent technological achievements based on the most widely investigated materials: silk and paper. Silk, which was initially deployed mainly for the clothing industry, is a natural eco-friendly material with unique properties. Due to its exceptional characteristics of being fully biodegradable and eliciting no immune response, silk has now become one of the most promising materials for biomedical applications such as biomedical implantable devices. Together with excellent optical transparency in the visible range of light, the exceptional biocompatibility of silk has inspired many outstanding developments of optical devices for biomedical sensing applications. Silk has also attracted attention for its use in electronic devices. It has been shown that silk is particularly beneficial for organic thin-film transistors (OTFTs) applications as it can improve the crystal quality of organic semiconductors. There has also been much interesting research done on silk-based transient electronic devices and carbonized silk-based electrical sensors. [2] Meanwhile, paper, one of the oldest and most familiar bio-based materials in human history, has also shown its advantages of outstanding optical and mechanical properties with the promise Photonic and electronic devices currently face challenges in terms of improved efficiency of energy harvesting and light emission, renewable energy and materials, and the development of eco-friendly materials. Owing to the emergence of worldwid...

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“…Since the 1980s, inkjet printers became the most commonly used type of printers. However, inkjet printing using the diverse materials as ink is a relatively new technology, providing a great opportunity for various applications such as electronic circuits, 1 batteries, 2 semiconductors, 3 optical devices, 4,5 microfluidics, 6−9 and sensors. 10−13 Inkjet printing allows a specific design to be printed with high resolution in a simple, fast, low-cost process and with low material waste.…”

Section: Introductionmentioning

confidence: 99%

Inkjet-Printed Carbon Nanotubes for Fabricating a Spoof Fingerprint on Paper

et al. 2019

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A spoof fingerprint was fabricated on paper and applied for a spoofing attack to unlock a smartphone on which a capacitive array of sensors had been embedded with a fingerprint recognition algorithm. Using an inkjet printer with an ink made of carbon nanotubes (CNTs), we printed a spoof fingerprint having an electrical and geometric pattern of ridges and furrows comparable to that of the real fingerprint. With this printed spoof fingerprint, we were able to unlock a smartphone successfully; this was due to the good quality of the printed CNT material, which provided electrical conductivities and structural patterns similar to those of the real fingerprint. This result confirms that inkjet-printing CNTs to fabricate a spoof fingerprint on paper is an easy, simple spoofing route from the real fingerprint and suggests a new method for outputting the physical ridges and furrows on a two-dimensional plane.

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Semiconductor Photonic Nanocavity on a Paper Substrate

Cited by 13 publications

References 31 publications

Design of photonic microcavities in hexagonal boron nitride

Design of photonic microcavities in hexagonal boron nitride

Silk and Paper: Progress and Prospects in Green Photonics and Electronics

Inkjet-Printed Carbon Nanotubes for Fabricating a Spoof Fingerprint on Paper

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