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Della Gaspera Laboratory @DellaGasperaLab
Joined January 2018
  • Tweets 949
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  • Followers 1,053
180 Photos and videos
They are able to absorb a large fraction of visible light, with a reduced thickness. The most adopted structure is a bottom metal mirror, an oxide spacer, and an outer layer of Au nanoparticles, which Daniel Gomez pioneered using vacuum-based depositions: pubs.acs.org/doi/10.1021/acs…

Hot Carrier Extraction with Plasmonic Broadband Absorbers

Hot charge carrier extraction from metallic nanostructures is a very promising approach for applications in photocatalysis, photovoltaics, and photodetection. One limitation is that many metallic...

pubs.acs.org
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Here we used TiO2 and Au nanocrystals and assembled them into coatings of precise thickness and surface coverage, obtaining structures that when deposited on a mirror, were able to absorb broadly in the visible an near infrared, with a peak absorption of light of 95% at 530 nm.
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We used this enhanced absorption as a tool to optically detect ammonia at near-to-room temperatures (100 C) which is unusual for oxide-based sensors. This is so exciting because it opens up new possibilities in optical sensing of hazardous gases!
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Della Gaspera Laboratory@DellaGasperaLab
28 May 2025
We present the fabrication of #plasmonic super absorbers using wet chemical methods, and their use as optical gas sensors. Super absorbers are nanostructures based on a mirror-spacer-nanoparticle architecture, and they function through optical interference and field localization.
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Della Gaspera Laboratory@DellaGasperaLab
28 May 2025
🚨 New paper alert!🚨 Plasmonic Super Absorbers as optical gas sensors pubs.acs.org/doi/full/10.102… Great collaboration with Daniel Gomez and @nanoengUnipd , led by Michele during his visit to Melbourne #ozchem #nanotechnology #Chemistry #nanomaterials #RMIT A short 🧵below👇👇
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Della Gaspera Laboratory@DellaGasperaLab
27 May 2025
And it's finally out!! Read it here: pubs.acs.org/doi/full/10.102… #ozchem #RMIT @ResearchRMIT #Chemistry

Doping and Annealing Conditions Strongly Influence the Water Oxidation Performance of Hematite...

Hematite (α-Fe2O3) is one of the most promising semiconductors for solar water splitting due to its high theoretical efficiency and low cost. However, its poor electronic properties strongly limit...

pubs.acs.org
Della Gaspera Laboratory@DellaGasperaLab
28 Nov 2024
🚨New paper out in @ChemRxiv🚨 Mammoth study on the role of doping and annealing for Fe2O3 photoanodes for #water #splitting. Short thread🧵 below👇👇 #ozchem #nanotechnology #Chemistry #nanomaterials #RMIT @ResearchRMIT chemrxiv.org/engage/chemrxiv…
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🚨New paper out in #ChemRxiv 🚨 Copper Tungstate (CuWO4) thin films can split water very effectively under sunlight! Great work by PhD student Kanishk, and many contributors from within and outside the group! Check it out! 👀 doi.org/10.26434/chemrxiv-20… @ResearchRMIT #ozchem 🧵👇👇
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First, we present a simple synthesis for CuWO4, highlighting the role that water plays in the complexation of ions within the precursor solution. Then we discovered that Cu exhibits unusually high oxidation state (higher than 2), compensated with a reduced tungsten valency.
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Finally, we showcase the role of annealing conditions, achieving record photoelectrochemical performance for water oxidation. This is very exciting, and we are now exploring doping and heterostructure formation, so heads up, more studies on this material are coming out soon!
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Della Gaspera Laboratory@DellaGasperaLab
11 Dec 2024
What a way to wrap up the year! 2 DP EoI submitted yesterday and a research award today! Time to crack open a cold one!
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🚨New paper out in @ChemRxiv🚨 Mammoth study on the role of doping and annealing for Fe2O3 photoanodes for #water #splitting. Short thread🧵 below👇👇 #ozchem #nanotechnology #Chemistry #nanomaterials #RMIT @ResearchRMIT chemrxiv.org/engage/chemrxiv…
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In this work we present a simple, water based method to deposit phase-pure hematite Fe2O3 coatings for water oxidation. Lead author Triet discovered a strong interplay between dopants and annealing conditions, finding an optimal combination to achieve high performance. 😲
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These optimal conditions allowed to increase the hematite thickness to improve light absorption, without affecting negatively charge transport. This study sets clear guidelines for producing high performance Fe2O3 photoanodes for sustainable #green #hydrogen production
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Della Gaspera Laboratory@DellaGasperaLab
25 Nov 2024
Good luck everyone!
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Della Gaspera Laboratory@DellaGasperaLab
19 Nov 2024
I don't usually like to brag, but this news deserves an exception: I have been promoted to full professor effective 1 January 2025!!! A massive THANK YOU to my group, my colleagues and my collaborators who supported me along the way, and to the reviewers for their endorsement!

ALT Minions Its Time To Party GIF

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Della Gaspera Laboratory@DellaGasperaLab
24 Oct 2024
Wonderful visit today from former PhD student @Jaewon53624981 . It was great catching up after almost 3 years!
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Della Gaspera Laboratory@DellaGasperaLab
7 Oct 2024
🚨New paper out in @ChemRxiv 🚨 Doping of WO3 #plasmonic #nanocrystals with organic cations. Led by @Owen_Kendall1, and great collaboration with @joelvanembden @acalzola74 and others. #ozchem #nanotechnology #Chemistry #nanomaterials #RMIT @ResearchRMIT doi.org/10.26434/chemrxiv-20…
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Della Gaspera Laboratory@DellaGasperaLab
13 Sep 2024
🥳Someone turned 6 today (where did that time go??) and she is pretty excited to work on her new #science project... Big parenting goals here! #birthdaygirl #AcademicTwitter #ozchem #chemistry
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