skip to primary navigationskip to content
 

Shining new light on old rocks

On the micro and nano scale, rocks familiar to us are not so cold and hard as we know them - they are continually twisting and bending from the heat around us, just like a lizard in the sun.

In my research, I study the twisting and bending in a particular type of rock, known as perovskite, which can be found all over the world. Using an extremely fast camera, which effectively takes a million billion snapshots over a single second, I watch the perovskite dance.

This camera has two laser beams which hit the material at different times. The first laser imprints a property of light, known as the polarisation, into the material and the second laser checks for this imprint.

By changing the time between the first laser hitting the material and the second laser hitting the material, we can see how long the imprint lasts for. The longer the imprint remains, the slower the perovskite twists and bends.

Measurements of these movements allow us to understand how the perovskite interacts with light, enabling us to fabricate more efficient devices which rely on these interactions.

Major advances have already been made in the efficiencies of perovskite solar cells, light emitting diodes and lasers.

Jasmine Rivett

PhD Student

Department of Physics

 

Cover Image- Mindat.org

RSS Feed Latest news

NanoDTC Associates Competition - Deadline 27th October

Oct 10, 2017

The NanoDTC Associates competition is and opportunity for Cambridge PhD students working in nano related areas to become affiliatedto the NanoDTC and also receive a travel grant of up to £3000. Applications accepted until Fri 27th Oct.

NanoDTC-Impulse-Maxwell Innovation Seminar Series - Prof. Ijeoma Uchegbu, Nanomerics

Oct 10, 2017

The first event in the joint NanoDTC-Impulse-Maxwell Innovation Seminar Series kicks off with a series of brilliant speakers who are at different stages in their Innovation  and Entrepreneurship journey.

Learning About Leadership in Antarctica

Aug 30, 2017

Hannah Laeverenz Schlogelhofer (c2014) writes about her experience being part of a leadership programme for creating change towards a more sustainable future

NanoDTC Translational Prize Fellow's nano-battery wins accolades

Jul 27, 2017

Jean de La Verpilliere (c2013), NanoDTC Translational Prize Fellow and Managing Director of the newly formed startup Echion Technologies has won prizes in the Royal Society of Chemistry 2017 Emerging Technologies Competition and the Kings' College Entrepreneurship Prize