2020 New's Items

Bottom-up Assembly of Nanoporous Graphene with Emergent Electronic States

Jacobse PH
McCurdy RD
Jiang J
Rizzo DJ
Veber GC
Butler P
Zuzak R
Louie SG
Fischer FR
Crommie MF
2020

The incorporation of nanoscale pores into a sheet of graphene allows it to switch from an impermeable semimetal to a semiconducting nanosieve. Nanoporous graphenes are desirable for applications ranging from high-performance semiconductor device channels to atomically thin molecular sieve membranes, and their performance is highly dependent on the periodicity and reproducibility of pores at the atomic level. Achieving precise nanopore topologies in graphene using top-down lithographic approaches has proven to be challenging due to poor structural control at the atomic level....

Alex Zettl's group demonstrate new technique that could improve performance of atomically thin semiconductors for nextgen electronics such as optoelectronics, thermoelectrics, and sensors

August 20, 2020

To tune the band gap, a key parameter in controlling the electrical conductivity and optical properties of semiconductors, researchers typically engineer alloys, a process in which two or more materials are combined to achieve properties that otherwise could not be achieved by a pristine material.

But engineering band gaps of conventional semiconductors via alloying has often been a guessing game, because scientists have not had a technique to directly “see” whether the alloy’s atoms are arranged in a specific pattern, or randomly dispersed.

Now, as...

Omar Yaghi Awarded the German Chemical Society Gold Medal

March 4, 2020

Omar Yaghi, The James and Neeltje Tretter Professor of Chemistry, has been awarded the 2020 August Wilhelm von Hofmann award. The German Chemical Society presents this prestigious award to an outstanding international chemist in a wide range of fields. Among the oldest chemistry awards, the August-Wilhelm-von-Hofmann-Denkmünze gold medal was first given in 1903. The award is intended to recognize outstanding achievements in chemistry; in particular by scientists working outside of Germany.

Professor...

Paul Alivisatos Wins Jan Rajchman Prize

March 30, 2020

Each year, the Society for Information Display celebrates industry heroes—professionals whose personal contributions or technical achievements have helped to advance the field. The 2020 recipients of SID honors and awards, who will be recognized during Display Week, include boundary-pushers, educators, and research pioneers. Here, a look at their accomplishments.

Increasing the Efficiency of CO Catalytic Conversion

October 27, 2020
SCIENTIFIC ACHIEVEMENT

Using a combination of tools at the Advanced Light Source (ALS) and other facilities, researchers probed specific mechanisms affecting the efficiency of catalysts for CO-to-CO2 conversion.

SIGNIFICANCE AND IMPACT

The work brings us closer to the rational design of more effective catalysts for cleaning up toxic CO exhaust and advances our understanding of fundamental catalytic reactions.

A better way to clear the air

The conversion of carbon monoxide (CO) into carbon dioxide (CO2) is important for cleaning up exhaust gases—...

Mike Crommie is the 2021 recipient of the Davisson-Germer Prize in Atomic or Surface Physics, for "outstanding contributions to understanding and controlling the fundamental elecronic properties of low-dimensional systems at the atomic scale."

October 7, 2020
Davisson-Germer Prize in Atomic or Surface Physics

This prize recognizes outstanding work in atomic physics or surface physics. The prize consists of $5,000 and a certificate citing the contributions made by the recipient or recipients.

Establishment & Support

This Prize was established in 1965 by AT&T Bell Laboratories (now Bell Laboratories, Alcatel-Lucent Technologies) and with additional support from the Chope Family Trust.

Rules & Eligibility

This prize will normally be awarded in odd years to a candidate who presents work for surface physics and in even...

Peidong Yang Elected as 2020 AAAS Fellow

November 24, 2020

Nearly 500 members of the American Association for the Advancement of Science have earned the lifetime distinction of AAAS Fellow.

AAAS Fellows are elected each year by their peers serving on the Council of AAAS, the organization’s member-run governing body. The title recognizes important contributions to...

Charges Cascading Along a Molecular Chain

November 12, 2020

Small electronic circuits power our everyday lives, from the tiny cameras in our phones to the microprocessors in our computers. To make those devices even smaller, scientists and engineers are designing circuitry components out of single molecules. Not only could miniaturized circuits offer the benefits of increased device density, speed, and energy efficiency – for example in flexible electronics or in data storage – but harnessing the physical properties of specific molecules could lead to devices with unique functionalities. However, developing practical nanoelectronic devices from...

Shaowei Li, Recipient of the 2020 AVS NSTD Early Career Award

October 21, 2020
Nanoscale Science and Technology Division Early Career Competition


As nanoscience has continued to expand its impact in diverse fields including quantum science, biology, mechanics, and energy, the Nanoscale Science and Technology Division (NSTD) has been a hub of research broadly related to instrumentation, lithography, manipulation, imaging, and technology translation. The NSTD holds an Early Career Competition at the annual AVS International Symposium to highlight and celebrate exceptional researchers working on the frontiers of nanoscience. Post-doctoral researchers as well...

Metal wires of carbon complete toolbox for carbon-based computers

September 24, 2020

“Using chemistry, we created a tiny change, a change in just one chemical bond per about every 100 atoms, but which increased the metallicity of the nanoribbon by a factor of 20, and that is important, from a practical point of view, to make this a good metal.”

Transistors based on carbon rather than silicon could potentially boost computers’ speed and cut their power consumption more than a thousandfold — think of a mobile phone that holds its charge for months — but the set of tools needed to build working carbon circuits has remained incomplete until now.

A team of...