scholarly journals Large-area crack-free single-crystal photonic crystals via combined effects of polymerization-assisted assembly and flexible substrate

2012 ◽  
Vol 4 (8) ◽  
pp. e21-e21 ◽  
Author(s):  
Jinming Zhou ◽  
Jingxia Wang ◽  
Yu Huang ◽  
Guoming Liu ◽  
Libin Wang ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Single Crystal ◽  
Flexible Substrate ◽  
Combined Effects ◽  
Large Area

scholarly journals Amorphous thin-film oxide power devices operating beyond bulk single-crystal silicon limit

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuki Tsuruma ◽  
Emi Kawashima ◽  
Yoshikazu Nagasaki ◽  
Takashi Sekiya ◽  
Gaku Imamura ◽  
...  
Keyword(s):  
Thin Film ◽  
Single Crystal ◽  
Flexible Substrate ◽  
Single Crystal Silicon ◽  
Bulk Single Crystal ◽  
Next Generation ◽  
Power Devices ◽  
Large Area ◽  
Crystal Silicon ◽  
Amorphous Thin Film

AbstractPower devices (PD) are ubiquitous elements of the modern electronics industry that must satisfy the rigorous and diverse demands for robust power conversion systems that are essential for emerging technologies including Internet of Things (IoT), mobile electronics, and wearable devices. However, conventional PDs based on “bulk” and “single-crystal” semiconductors require high temperature (> 1000 °C) fabrication processing and a thick (typically a few tens to 100 μm) drift layer, thereby preventing their applications to compact devices, where PDs must be fabricated on a heat sensitive and flexible substrate. Here we report next-generation PDs based on “thin-films” of “amorphous” oxide semiconductors with the performance exceeding the silicon limit (a theoretical limit for a PD based on bulk single-crystal silicon). The breakthrough was achieved by the creation of an ideal Schottky interface without Fermi-level pinning at the interface, resulting in low specific on-resistance Ron,sp (< 1 × 10–4 Ω cm2) and high breakdown voltage VBD (~ 100 V). To demonstrate the unprecedented capability of the amorphous thin-film oxide power devices (ATOPs), we successfully fabricated a prototype on a flexible polyimide film, which is not compatible with the fabrication process of bulk single-crystal devices. The ATOP will play a central role in the development of next generation advanced technologies where devices require large area fabrication on flexible substrates and three-dimensional integration.

scholarly journals Amorphous thin-film oxide power devices operating beyond bulk single-crystal silicon limit

2021 ◽  
Author(s):  
Yuki Tsuruma ◽  
Emi Kawashima ◽  
Yoshikazu Nagasaki ◽  
Takashi Sekiya ◽  
Gaku Imamura ◽  
...  
Keyword(s):  
Thin Film ◽  
Single Crystal ◽  
Flexible Substrate ◽  
Single Crystal Silicon ◽  
Bulk Single Crystal ◽  
Next Generation ◽  
Power Devices ◽  
Large Area ◽  
Crystal Silicon ◽  
Amorphous Thin Film

Abstract Power devices (PD) are ubiquitous elements of the modern electronics industry that must satisfy the rigorous and diverse demands for robust power conversion systems that are essential for emerging technologies including Internet of Things (IoT), mobile electronics, and wearable devices. However, conventional PDs based on “bulk” and “single-crystal” semiconductors require high temperature (>1000°C) fabrication processing and a thick (typically a few tens to 100 μm) drift layer1, thereby preventing their applications to compact devices2, where PDs must be fabricated on a heat sensitive and flexible substrate. Here we report next-generation PDs based on “thin-films” of “amorphous” oxide semiconductors with the performance exceeding the silicon limit (a theoretical limit for a PD based on bulk single-crystal silicon3). The breakthrough was achieved by the creation of an ideal Schottky interface without Fermi-level pinning at the interface, resulting in low specific on-resistance Ron,sp (<1×10-4 Ωcm2) and high breakdown voltage VBD (~100 V). To demonstrate the unprecedented capability of the amorphous thin-film oxide power devices (ATOPs), we successfully fabricated a prototype on a flexible polyimide film, which is not compatible with the fabrication process of bulk single-crystal devices. The ATOP will play a central role in the development of next generation advanced technologies where devices require large area fabrication on flexible substrates and three-dimensional integration.

Large-area Piezoelectric Single Crystal Composites via 3D-printing Assisted Dice-and-insert Technology for Hydrophone Applications

2021 ◽  
pp. 1-1
Author(s):  
Ting Wang ◽  
Xiaodong Zhao ◽  
Hongliang Du ◽  
Song Xia ◽  
Guo Li ◽  
...  
Keyword(s):  
3D Printing ◽  
Single Crystal ◽  
Large Area

Fabrication of large-area 3D photonic crystals using a holographic optical element

2006 ◽  
Vol 44 (9) ◽  
pp. 903-911 ◽  
Author(s):  
Xiangsu Zhang ◽  
Shou Liu ◽  
Ying Liu
Keyword(s):  
Photonic Crystals ◽  
Optical Element ◽  
Large Area ◽  
Holographic Optical Element

scholarly journals Shape-Controlled, Single-Crystal Gold Surface Nanostructures

2019 ◽  
Author(s):  
Sasan V. Grayli ◽  
Xin Zhang ◽  
Dmitry Star ◽  
Gary Leach
Keyword(s):  
Single Crystal ◽  
Electroless Deposition ◽  
Near Field ◽  
Critical Role ◽  
Deposition Process ◽  
Local Fields ◽  
Metal Nanostructures ◽  
Large Area ◽  
Device Applications ◽  
Shape Controlled

Size, shape and crystallinity play a critical role in the wavelength-dependent optical responses and plasmonic local near-field distributions of metallic nanostructures. While their enhanced local fields can drive new and useful chemical and physical processes, the ability to fabricate shape-controlled single-crystal metal nanostructures and position them precisely on substrates for device applications represents a significant barrier to harnessing their greater potential. Here, we describe a novel electroless deposition process in the presence of anionic additives that yields additive-specific, shape-controlled, single-crystal plasmonic Au nanostructures on Ag(100) and Au(100) substrates. Deposition of Au in the presence of SO<sub>4</sub><sup>2-</sup> ions results in the formation of smooth Au(111)-faceted square pyramids that show large surface enhanced Raman responses. The use of halide additives such as Cl<sup>-</sup> and Br<sup>- </sup>that interact strongly with (100) facets produces highly textured hillock-type structures characterized by edge and screw-type dislocations (Cl<sup>-</sup>), or flat platelet-like features characterized by large area Au(100) terraces with (110) step edges (Br<sup>-</sup>). Use of additive combinations provides structures that comprise characteristics derived from each additive including new square pyramidal structures with dominant Au(110) facets (SO<sub>4</sub><sup>2-</sup>and Br<sup>-</sup>). Finally we demonstrate that this bottom-up electroless deposition process, when combined with top-down lithographic patterning methods, can be used to position shape-controlled, single-crystal Au nanostructures with precise location and orientation on surfaces. We anticipate that this approach will be employed as a powerful new tool to tune the plasmonic characteristics of nanostructures and facilitate their broader integration into device applications.

Rapid growth of large-area single-crystal graphene film by seamless stitching using resolidified copper foil on a molybdenum substrate

2019 ◽  
Vol 7 (31) ◽  
pp. 18373-18379 ◽  
Author(s):  
Yuan Cheng ◽  
Hui Bi ◽  
Xiangli Che ◽  
Wei Zhao ◽  
Dezeng Li ◽  
...  
Keyword(s):  
Single Crystal ◽  
Rapid Growth ◽  
Copper Foil ◽  
Film Growth ◽  
Graphene Film ◽  
Large Area ◽  
Molybdenum Substrate ◽  
Oriented Single Crystal

Single-crystal graphene film growth by the seamless stitching of highly oriented single-crystal graphene domains on a resolidified Cu (111) surface.

scholarly journals Reshaping Hybrid Perovskites Emission with Flexible Polymer Microcavities

2020 ◽  
Vol 230 ◽  
pp. 00006
Author(s):  
Paola Lova ◽  
Paolo Giusto ◽  
Francesco Di Stasio ◽  
Giovanni Manfredi ◽  
Giuseppe M. Paternò ◽  
...  
Keyword(s):  
Thin Films ◽  
Photonic Crystals ◽  
Low Cost ◽  
Scale Production ◽  
Large Area ◽  
Light Emitting Devices ◽  
Flexible Polymer ◽  
Hybrid Perovskite ◽  
Wide Range ◽  
Solution Processable

Thanks to versatile optoelectronic properties solution processable perovskites have attracted increasing interest as active materials in photovoltaic and light emitting devices. However, the deposition of perovskite thin films necessitates wide range solvents that are incompatible with many other solution-processable media, including polymers that are usually dissolved by the perovskite solvents. In this work, we demonstrate that hybrid perovskite thin films can be coupled with all polymer planar photonic crystals with different approaches to achieve emission intensity enhancement and reshaping using different approaches. The possibility to control and modify the emission spectrum of a solution processable perovskite via a simple spun-cast polymer structure is indeed of great interest in optoelectronic applications requiring high color purity or emission directionality. Furthermore, thanks to the ease of fabrication and scalability of solution-processed photonic crystals, this approach could enable industrial scale production of low-cost, large area, lightweight and flexible polymer-perovskite lighting devices, which may be tuned without resorting to compositional engineering.

Large-area two-dimensional silicon photonic crystals for infrared light fabricated with laser interference lithography

2004 ◽  
Vol 15 (5) ◽  
pp. 639-642 ◽  
Author(s):  
L Prodan ◽  
T G Euser ◽  
H A G M van Wolferen ◽  
C Bostan ◽  
R M de Ridder ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Infrared Light ◽  
Interference Lithography ◽  
Laser Interference Lithography ◽  
Two Dimensional ◽  
Laser Interference ◽  
Large Area ◽  
Silicon Photonic

Integrating anti-reflection and superhydrophobicity of moth-eye-like surface morphology on a large-area flexible substrate

2013 ◽  
Vol 47 (1) ◽  
pp. 015401 ◽  
Author(s):  
Chia-Hsing Liu ◽  
Pei-Lun Niu ◽  
Cheng-Kuo Sung
Keyword(s):  
Surface Morphology ◽  
Flexible Substrate ◽  
Large Area

scholarly journals Three-dimensional photonic crystals by large-area membrane stacking

2012 ◽  
Vol 37 (22) ◽  
pp. 4726 ◽  
Author(s):  
Ling Lu ◽  
Lin Lee Cheong ◽  
Henry I. Smith ◽  
Steven G. Johnson ◽  
John D. Joannopoulos ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Three Dimensional ◽  
Large Area
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