Centre for Sustainable Chemical Technologies

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Tagged: Solar

Speaking at RSC's 13th International Conference on Materials Chemistry

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📥  Comment, Research updates, Seminars & Conferences

From 10 - 13 July, the Arena and Convention Centre (ACC) Liverpool hosted the Royal Society of Chemistry’s 13th International Conference on Materials Chemistry (MC13). This conference happens every two years and always attracts hundreds of delegates from all over the world with diverse interests relating to materials chemistry.

After the long (and frankly dull) train journey from Bath to Liverpool, I made my way past the famous Albert Dock to the ACC and was immediately struck by its enormity. It was at this point that I began to appreciate the scale of this conference. My nervousness level went up a notch - I had given a talk to an international audience once before at the iPolymorphs conference in San Sebastian, but that was a much smaller meeting. The ACC was massive.

Fortunately, my anxiety was relieved for two reasons. Firstly, this year there were five parallel sessions to choose from and I would only be speaking in one of them, the Materials Design session, so would only be speaking to around a fifth of the 600+ delegates. Given that my PhD project involves developing new ways to computationally screen for new energy materials such as solar absorbers, this was the session of most interest to me and I spent most of my time there as well as in the Energy and Environment session. Secondly, as soon as the conference kicked off I was distracted by the excellent talks that were on offer.

Highlights included work by David Scanlon from UCL on searching for new solar absorbers using lessons learnt from the promising but currently highly unstable material methylammonium lead iodide (MAPI), and a plenary talk by Jeff Long from UC Berkeley on gas separation using metal organic frameworks, and that was just day one. Presentations at large conferences like this are a great way to quickly get up to date on the very latest advances in a research area, but also to get a broad overview of an unfamiliar topic, particularly in plenary talks that are given to the entire delegation.

I was speaking on day two and by the time my slot came around in the afternoon, I was more relaxed than I had expected. I think this was largely because the conference had quite a friendly feel to it. That is not to say that I had experiences of unfriendly conferences, but so far the questions and comments after each talk had been cordial and constructive, sparking excited discussion as opposed to awkward silence or heated debate. I expect I am not alone in my feeling that it is this final portion of a presentation that can be the most nerve-racking; you can be as prepared as you like but you can only guess as to what might be asked.

I was on straight after a keynote talk by David Mitzi from Duke University, who gave a superb overview of his work on searching for Earth-abundant solar absorbers. Top tip: If you are worried about starting a talk, have an ice-breaker ready to ease you and the audience in. My talk was entitled Low-cost High-throughput Screening of All Inorganic Materials; a bold and frankly ridiculous claim which was an ice-breaker in itself. It had the desired effect as the session chair commented that we probably wouldn’t have time for All inorganic materials in 15 minutes.

Top tip number two: There is a lot of information to be gleaned from the questions you are asked after a presentation, and they fall into three main camps:

  1. You get questions that you are not expecting because you thought you’d covered it in your talk or that it was obvious. This gives you an insight into what to explain more carefully or in more detail next time.
  2. You get questions that show an understanding of what you said as well as intrigue or curiosity, maybe asking you to expand on something that you’d mentioned (these questions are often prefaced with “Hi, nice talk…” or words to that effect). This is good - you kept (at least some of) your audience interested.
  3. You get no questions at all. You might have lost the audience somewhere early on or pitched the talk at the wrong level. Note: this logic does not apply if your session is immediately before lunch or a poster session involving refreshments.

Happily, most of the questions I received fell into the second category.

My talk was immediately followed by CSCT alumnus Adam Jackson who now has a post-doctoral position at UCL and gave a great talk on the computational design of a new transparent conducting oxide – another conference highlight for me. The chair closed the session by commenting how it was particularly nice to see some great talks from early-career researchers. It must be the rigorous CSCT training.

The conference concluded with a dinner at Anfield Stadium. Anyone who knows me will attest that I am not a huge fan of football (is it the one where millionaires shepherd a ball into an outside cupboard with their feet?) but it was a great venue nonetheless. A fantastic end to a fantastic conference. I’m looking forward to MC14 already.


Dan is currently working on his PhD project: 'High-throughput Computation of Materials and Interfaces’' with Professor Aron Walsh, Dr Duncan Allsopp and Dr Ben Morgan.

 

European Materials Research Society Spring Meeting - Two years on!

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📥  Seminars & Conferences

The following blog is written by Suzy Wallace.


 

I’ve been fortunate enough to attend the European Materials Research Society (E-MRS) Spring Meeting twice now during my PhD. The first time I presented at this meeting was during my first year (after completing our first MRes project) and the second time was between May 22 and 26 this year, which is the third year of my PhD. So, what’s changed between now and then besides the orientation of the sign?

Well it turns out that quite a lot has happened in my field of solar cell research, in terms of the understanding of solar cell materials I was already familiar with (and their current shortcomings preventing them from being on top of all our roofs already!) and new materials altogether that are emerging as contenders for new, efficient solar cell technologies. There was even a talk on using atomicly thin solar cells in outer space, beaming the electricity back to Earth via microwaves, which overcomes the issue of storing energy generated from sunlight when it’s dark on Earth. I assume the devices would be thin enough to be semi-transparent since I personally would feel a bit grumpy being in the shade for weeks or months if I lived directly below! The big plenary session in the middle of the conference highlighted various hot topics in the broader field of materials research including developing sensors for ‘electronic noses’ and thin layers of materials that are so sensitive to changes in humidity that they could potentially be used for ‘touchless’ as opposed to ‘touchscreen’ phones due to the humidity in our fingers. Some of the research into electronic noses is inspired by this guy below and his massive antennae:

 

So clearly the science has changed in two years, which isn’t altogether surprising given how rapidly changing a field science is in general; but what else has changed? The venue was different this year, with the conference being held in Strasbourg from now on (as opposed to Lille). Strasbourg was a lovely city, I’d go so far as to say unnecessarily pretty, it was showing off really. It’s also a nice city for a conference since it was pretty small so you could easily see most of it in a short space of time. The conference social was quite like the one in Lille, although this time the dancing also involved a giant horn, presumably this is something associated with Strasbourg but not Lille, unless it’s just another recent trend, like electronic noses?

 

Then I suppose the last thing to comment on that has changed between EMRS 2015 and 2017 is myself! I’m not shorter (despite appearances in the two photos with the EMRS signs), but I found the experience of the conference different this time around. Firstly, I felt less nervous presenting this time, as 2015 was the first time I’d presented at a conference. EMRS 2015 had been my favourite conference so far in terms of the scientific content and 2017 did not disappoint. However, I think what I gained from attending the various talks was different this time around. I found that a lot more of the concepts were more familiar, but the main difference I noticed (as someone whose research is based on a computer with simulations as opposed to in a lab), was that I felt a lot more familiar with presentations on various experimental studies this time around. I largely attribute this to the ‘wild card’ second MRes project you get to do during your first year (which I hadn’t done before I attended the EMRS in 2015), where I got to get some hands-on experimental experience and very much benefited from working with fellow CDT solar cell researchers Oli Weber, Mako Ng as well as Professors Mark Weller and Chris Bowen at the University of Bath. So, overall, I’d have to say attending the EMRS Spring Meeting again has left me feeling very grateful for the diverse experience I got during the first year of my PhD. At the time, I must admit I felt like a bit of a fish out of water in the labs, but I’m very glad for that experience now!


Suzy is working towards her PhD on 'Overcoming the efficiency bottleneck of metal sulfide solar cells' with Professor Aron Walsh, Professor Chris Bowen and Professor Mark Weller.