United States

This work is about using near-field phase lithography and ALD process repeatedly to create non-uniform nanolattices with spatially varying geometry and material composition. The proposed approach is also employed to make an antireflection GRIN surface which successfully reduces the specular reflectance by more than 60%.

EIPBN 2021

 Gradient-Index Nanolattices Using Multilayer Processing

antireflection structures

3d nanostructures

nanolattices

**Please view our Welcome to MH21 video.**

<center>
<figure class="video_container">
	 <iframe src="https://screencast-o-matic.com/watch/cr1UYHV1pcz?v=6&ff=1&title=0&controls=1" width=826 height=526 frameborder="0" allowfullscreen="true"> </iframe>
</figure>
	</center>


**Walkthrough Video**

Here is a Walkthrough showing how to navigate the conference and network with others 

<center>
<figure class="video_container">
	 <iframe src="https://screencast-o-matic.com/watch/cr1vnrV1paE?v=6&ff=1&title=0&controls=1" width=826 height=526 frameborder="0" allowfullscreen="true"> </iframe>
</figure>
	</center>




	 Organized by
 
<a href="https://mrs.org.sg/">
<img src="https://assets.underline.io/uploads/markdown_image/1/image/95d5789689d5f900b90e9fe54ea3cf0d.jpg"</a>

 
	
	 In association with
 
<a href="http://www.ntu.edu.sg/">
<img src="https://assets.underline.io/uploads/markdown_image/1/image/334cd171ad2fdee033c635b368e5e160.png"</a>
	<a href="https://www.nus.edu.sg/">
<img src="https://assets.underline.io/uploads/markdown_image/1/image/32e6f82c0440f7bb24c590f9f67821bd.png"</a>
		<a href="https://www.a-star.edu.sg/">
<img src="https://assets.underline.io/uploads/markdown_image/1/image/72557865b589cfa3d2a0243ffce4a270.png"</a>
	
 


	 Supported by
 
		 <a href="https://www.visitsingapore.com/mice/en/about-us/about-secb/">
<img src="https://assets.underline.io/uploads/markdown_image/1/image/6e679842ead62be522ba6a630b82d5c9.png"</a>

To access the MH 21 Conference, [please register](https://mh21.mrs.org.sg/event/da3f9651-429f-4763-81b2-ebd7311b6bc8/websitePage:206f7605-1731-41f9-8421-56d3890f398f)

MATERIALS FOR HUMANITY (MH 21)

MH 21 is arranged around 6 themes that focus attention on pressing needs that should be addressed to enhance the well-being of communities and provide a forum for presenting breakthrough discoveries.

technical paper

The International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication (EIPBN), affectionately known as "3-Beams," is the premier gathering of scientists and engineers who are dedicated to electron, ion and photon lithography, imaging, and analysis; atomically precise fabrication; nanofabrication process technologies and related emerging technologies; and their applications in a broad spectrum of fields. In its 64th meeting, researchers from academia, government laboratories, and industry from around the world meet to present and discuss recent and future trends in these technologies.
 
 
 
[![](https://assets.underline.io/uploads/markdown_image/1/image/4bdf4450aa93073cd684b096b403df2e.png)](https://drive.google.com/file/d/1CPaA3-Yf7_maBxJMUJaUORLF3HGO9CIe/view?usp=sharing) [![](https://assets.underline.io/uploads/markdown_image/1/image/cea8a407085dee5422a2c16738ce27ca.png)](https://eipbn.org/abstracts/2021/)

To register for this event, please follow the link below.

This talk will review applications of the Cs+ Low Temperature Ion Source (LoTIS). This ion source enables high precision FIB imaging and machining, and also high-yield secondary ion mass spectrometry (SIMS)

Applications of the Cesium Low Temperature Ion Source

After an introduction to the npSCOPE instrument and its capabilities we will introduce the new STIM detector and present first results obtained with it on single and polycrystalline samples as well biological specimen. The latter will focus on different kinds of nanoparticle samples relevant in the field of nano-toxicology.

 Scanning Transmission Ion Micrsocopy in the Helium Ion Microscope for nanoparticle research

Electrostatic lens system optimization is a challenge, especially for systems having many free variables with more than one objective function. An example is minimization of probe size for a primary beam, with in-lens secondary electron detection with maximum detection efficiency. This subject has been investigated here using Multi-Objective GA.

Probe Size and Detection Efficiency Optimization in Electrostatic Lens Systems Using Multi-Objective Genetic Algorithms

We describe two accessible and successful microfluidic strategies to expose human pluripotent stem cells to spatial gradients of differentiation-inducing extracellular signals in vitro. In addition, coupling with a fluorescent reporter and live-cell imaging allowed us to characterize the spatiotemporal dynamics of differentiation of our spatially patterned cell colonies.

Spatially controlled stem cell differentiation via morphogen gradients: comparing static and dynamic microfluidic platforms

In this study, we have employed lithography techniques to fabricate stretchable metallic micro-wiring with potential applications in flexible and stretchable electronics. The metal is deposited directly on top of the nano-fiber mesh, and it is patterned with photolithographic techniques to demonstrate stretchable micro-wiring.

Lithographically patterned flexible metallic micro wiring on an electrospun nano-fiber mesh

We demonstrate a novel fabrication process for creating ultra-thin (5+ nm) suspended membranes from a variety of ALD materials. ALD films as thin as 5 nm have been released without damage using a low-power O2 plasma. This flexible process is currently being validated through fabrication of conductive TiN TEM windows.

Fabrication of Ultra-Thin Suspended ALD Membranes

Hydrogen Depassivation Lithography has been used to place donors with atomic precision in buried Si (100) planes to make quantum and atomic electronic devices. Recent demonstrations using acceptors to pair with donors enable bipolar junction transistors. These 2D-nanodevices should be extremely high-performance, low-noise, rad-hard, and capable of cryogenic operation.

Progress Toward 2D Nano Bipolar Junction Transistors

We demonstrate the co-deposition of B and P in aligned atomic-scale patterns, in order to make bipolar junction devices. This requires the use of BCl3 and PH3 as acceptor and donor dopant precursors, and dI/dV imaging to relocate the B electrode and align the P electrodes to it.

 Co-deposition of B and P for Ultraprecise Bipolar devices

Wafer-scale fabrication was used to create STEM-compatible operando graphene devices that can be characterized during operation. The e-beam can be used to further alter the device design. We employ use of secondary electron e-beam induced current (SEEBIC) imaging to visualize device conductivity and examine device failure modes in extreme conditions.

Toward atomic-scale e-beam fabrication: imaging and altering graphene-based devices

Nano fabrication technologies are subject of research in several fields. The development and commercialization of nano-inside products are still waiting for its break through. However, this paper will describe three examples of research workin fields of bioinspired computing, nano patterned surfaces for flexible substrates, and nano optics for spectroscopic measurement.

Downloads

Next from EIPBN 2021

Applications of the Cesium Low Temperature Ion Source

Similar lecture

Z2-projective translational symmetry protected topological phases

Stay up to date with the latest Underline news!

PRODUCT

COMPANY

RESOURCES

.css-70qvj9{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;}Downloads

Next from EIPBN 2021

Applications of the Cesium Low Temperature Ion Source

Similar lecture

Z2-projective translational symmetry protected topological phases

Stay up to date with the latest Underline news!

PRODUCT

COMPANY

RESOURCES

Downloads