News Archive

 

20-11-14 Prof. Duesberg's News and Views article titled "Heterojunctions in 2D semiconductors: A perfect match" has been published in Nature Materials. This article discusses recent reports on the growth of 2D heteromaterials and outlines the promise these materials hold for commercial applications. The paper also features artwork by ASIN group member Christian Wirtz.

 

 

10-11-14 The ASIN group now has a twitter feed posting updates on our research and outreach activities. Follow us here.

 

 

04-11-14 Congratulations to Dr. Hye-Young Kim who has been awarded funding under the Science Foundation Ireland (SFI) Advance Award Programme. Details of this programme can be found here.

 

 

31-10-14 Chanyoung Yim's paper "Investigation of the optical properties of MoS2 thin films using spectroscopic ellipsometry" has been listed as one of the most highly cited papers in Applied Physics Letters published in 2014 and has been made free to download for a limited time.

 

 

06-10-14 Maria O'Brien's paper entitled "Plasma assisted synthesis of WS2 for gas sensing applications" has been published in Chemical Physics Letters. This paper details the production of WS2 thin films using a scalable low-temperature, plasma assisted process and their subsequent usage for the detection of ammonia.

 

 

26-09-14 Sinéad Winters, Maria O'Brien and Christian Wirtz all took part in the TCD heat of Thesis in Three. In this competition PhD students explain their thesis in only 3 minutes using just 3 slides. Christian claimed second prize and will now go on to represent CRANN in the finals in The Sugar Club on the 20th of October. Free tickets for the final can be obtained by registering here.

 

 

Christian receiving his prize

 

 

26-09-14 As part of Discover Research Dublin, ASIN group members gave lab tours to members of the public.

 

 

Left to Right: Dr. Nina Berner, Dr. Hye-Young Kim, Conor Cullem, Riley Gatensby, Dr. Toby Hallam.

 

 

07-08-14 Duesberg group members feature on Dr. Claudia Backes' (Coleman group) paper entitled "Edge and confinement effects allow in situ measurement of size and thickness of liquid-exfoliated nanosheets" published in Nature Communications.

 

 

14-07-14 Congratulations to Germany on their fantastic world cup win but more importantly congratulations to Chanyoung Yim who continued his winning run by topping the Duesberg group world cup prediction game!

 

 

10-07-14 Congratulations to Chanyoung Yim who today won a prize for best poster at Flatlands Beyond Graphene. Chanyoung's poster was based on his recent paper in Scientific Reports.

 

 

26-06-14 Chanyoung Yim's paper entitled ""Heterojunction Hybrid Devices from Vapor Phase Grown MoS2" has been published in Scientific Reports. This paper describes a scalable route to the production of a vertically-stacked hybrid photodiode consisting of a thin n-type molybdenum disulfide (MoS2) layer transferred onto p-type silicon.

 

 

26-06-14 Hugo Nolan and Niall McEvoy today received commercialisation awards at the CRANN / AMBER quarterly for their submitted invention disclosure form on "Molybdenum Disulfide / Pyrolytic Carbon Hybrid Electrodes".

 

 

09-06-14 Upcoming oral presentations - Sinéad Winters is presenting at From Solid State to BioPhysics, Dubrovnik (7-14 June). Prof. Duesberg will be presenting at Graphene Week 2014, Gothenburg (23-27 June). Hugo Nolan and Maria O'Brien will both be presenting at Flatlands Beyond Graphene, Dublin (9-11 July).

 

 

09-06-14 Hugo Nolan's paper entitled "Molybdenum disulfide/pyrolytic carbon hybrid electrodes for scalable hydrogen evolution" has been accepted for publication in Nanoscale. This paper details the scalable production of MoS2 based HER catalysts on a pyrolytic carbon platform.

 

 

13-05-14 Recent group poster presentations can now be found here.

 

 

07-05-14 Dr. Toby Hallam's paper titled "Strain, Bubbles, Dirt and Folds: A Study of Graphene Polymer-Assisted Transfer" has been accepted for publication in Advanced Materials Interfaces. This follows Toby's recent prize-winning poster on the same topic at the International Winterschool on Electronic Properties of Novel Materials (IWEPNM) in Kirchberg. This paper investigates the effects of graphene transfer using various polymers and introduces nitrocellulose based polymers as an attractive alternative to commonly used PMMA.

 

 

20-04-14 Prof. Duesberg and Dr. Niall McEvoy feature on Coleman group publication in Nature Materials.

 

 

07-04-14 Prof. Duesberg was today elected as a Fellow of Trinity College Dublin. Coverage can be found on the TCD website and on broadsheet.ie.

 

 

Chemistry Fellows at Front Square Left to Right: Prof. Michael Lyons, Prof. John Corish, Prof. Paula Colavita, Prof. Georg Duesberg, Prof. John Kelly

 

 

01-04-14 ASIN group members will be presenting at the upcoming Electrograph dissemination workshop in Fraunhofer IPA, Stuttgart on May 21st.

 

17-03-14 Dr. Toby Hallam's poster titled "Strain, Bubbles, Dirt and Folds: A Study of Graphene Polymer-Assisted Transfer" was awarded first prize at the International Winterschool on Electronic Properties of Novel Materials (IWEPNM) in Kirchberg.

 

16-03-14 Chanyoung Yim's paper titled "Investigation of the optical properties of MoS2 thin films using spectroscopic ellipsometry" has been accepted for publication in Applied Physics Letters. This paper describes the use of high-throughput and cost-effective spectroscopic ellipsometry to both measure the thickness and determine the optical constants of MoS2 thin films produced by vapour phase sulfurisation.

 

20-02-14 New PhD positions available in the ASIN group. For details please see research opportunities.

 

17-02-14 Dr. Gareth P. Keeley's paper titled "Electroanalytical Sensing Properties of Pristine and Functionalized Multi-Layer Graphene" has been accepted for publication in Chemistry of Materials. This paper describes the electron transfer (ET) properties of CVD grown multi-layer graphene. An oxygen plasma treatment is used to enhance the ET properties by generating oxygenated functionalities and edge planes and defects.

 

13-02-14 Christian Wirtz's paper titled "Growth optimisation of high quality graphene from ethene at low temperatures" has been accepted for publication in Chem Phys Lett. This paper describes low temperature (850 oC) production of high mobility (1100 cm2/Vs) GFETs based on in-situ grown graphene lines.

 

31-01-14 New group papers in January. Sarah Hurch's paper entitled "Inkjet-defined field-effect transistors from chemical vapour deposited graphene" accepted for publication in Carbon. Riley Gatensby's paper entitled "Controlled Synthesis of Transition Metal Dichalcogenide Thin Films for Electronic Applications" accepted for publication in Applied Surface Science. ASIN group members feature on collaborative publications with Prof. Coleman's group in Chemistry of Materials and with Prof. Donegan's group in Applied Physics Letters.

 

20-01-14 Work by Dr. Toby Hallam featured as Frontispiece in Small

 

16-12-13 Hugo Nolan's paper titled "Nitrogen-doped reduced graphene oxide electrodes for electrochemical supercapacitors" has been accepted for publication in PCCP. This paper describes a facile route, based on spray coating, for the preparation of supercapacitor electrodes.

 

06-12-13 A paper featuring Dr. Toby Hallam and Prof. Georg Duesberg, in collaboration with Prof. Antonio Costa, Prof. Mauro Ferreira and Prof. Antonio Castro Neto, on the modelling of graphene fins has been published in Europhysics letters.

 

23-11-13 Microscopy images taken by Dr. Rohit Mishra and Dr. Niall McEvoy have been featured in the Guardian in "Small is Beautiful - Nanotechnology in Pictures".

 

05-11-13 Chanyoung Yim's paper titled "Characterization of graphene-silicon Schottky barrier diodes using impedance spectroscopy" has been accepted for publication in Applied Physics Letters. This paper details the characterisation of graphene-silicon Schottky barrier diodes using a combination of dc current voltage measurements and ac impedance spectroscopy.

 

24-10-13 The ASIN group today participated in the launch of AMBER (Advanced Materials and BioEngineering Research), at Croke Park. This new Science Foundation Ireland funded centre is jointly hosted in Trinity College Dublin (TCD) by CRANN and the Trinity Centre for Bioengineering (TCBE), in collaboration with University College Cork and the Royal College of Surgeons in Ireland (RCSI).

 

09-10-13 Dr. Hye-Young Kim's paper titled "Electrical properties of high density arrays of silicon nanowire field effect transistors" has been accepted for publication in Journal of Applied Physics. Within this paper high density arrays of SiNW FETs are fabricated using e-beam lithography of hydrogen silsesquioxane on silicon. The nanowires are packed to high density, allowing for the effect of scaling on the electrical performance of SiNW FETs to be investigated.

 

25-09-13 Hugo Nolan's paper titled "Nitrogen-Doped Pyrolytic Carbon Films as Highly Electrochemically Active Electrodes" has been accepted for publication in PCCP. This paper outlines a process for N-doping PyC films with a NH3 plasma, endowing them with exceptional electron transfer properties.

 

02-08-13 Dr. Toby Hallam's paper titled "Field Emission Characteristics of Contact Printed Graphene Fins" has been accepted for publication in Small. In this work a printing technique is used to controllably nanostructure CVD grown graphene into vertically standing fins.


 

25-07-13 Dr. Kangho Lee's paper titled "Highly sensitive, transparent, and flexible gas sensors based on gold nanoparticle decorated carbon nanotubes" has been accepted for publication in Sensors and Actuators B: Chemical. This paper details the production of ammonia sensors based on gold decorated SWNTs. These sensors benefit from cheap and facile production and have an incredibly low detection limit of 255 ppb.

24-06-13 Congratulations to Riley Gatensby who won a prize for best poster at Flatlands beyond Graphene, which took place at Jacob's university in Bremen. Riley's poster contained results on CVD synthesis of transition metal dichalcogenide films and the incorporation of such films into electronic devices.


14-06-13 Chanyoung Yim's paper titled "Investigation of the Interfaces in Schottky Diodes using Equivalent Circuit Models" has been accepted for publication in ACS Applied Materials and Interfaces. Impedance spectroscopy is used to analyse the interfaces in carbon-silicon Schottky barrier diodes. An extended equivalent circuit model is developed which gives additional information on the interfaces present.


11-05-13 Recent media coverage of the group's research on graphene based sensors
Silicon Republic, RTE News, nano werk,



02-04-13 Dr. Hye-Young Kim's paper titled "Chemically Modulated Graphene Diodes" has been accepted for publication in Nano Letters. This work outlines a new sensing platform based on graphene contacted in a diode configuration, which allows its entire surface to be exposed to liquids or gases. These devices benefit from good recovery and long term stability marking them as high interest candidates for a myriad of sensing applications.



10-03-13 Congratulations to ASIN group members Sarah Hurch and Christian Wirtz who both won prizes for their poster presentations at the International Winterschool on Electronic Properties of Novel Materials in Kirchberg.