RAo group

Molecular And Nanoscale Photophysics

From Nanoscale Physics and ChEMISTRY to Devices

Welcome to the website of the Rao Group, part of the Optoelectronics Group at the Cavendish Laboratory, University of Cambridge. Our research is focussed on the optical and electronic properties of a new generation of energy materials which will see applications ranging from photovoltaics and LEDs to batteries and thermoelectrics.

Latest News

Paper published in Nature

Our paper on a new generation of organic-lanthanide nanoparticle hybrids to control triplet excitons is published in NatureRead more

Paper published to Nature Communications 

Our paper on endothermic charge generation in organic photovoltaics is accepted to Nature Communications.

Congrats to Dr Pandya and Dr Allardice

Raj and Jesse successfully defended their thesis’ over the summer

Paper published in CHEM

Our paper on the optical control of entangled triplet-pairs in published in CHEM

Research Themes

Photovoltaics Beyond the Shockley-Queisser Limit

We are developing strategies to push the limits of conventional solar cells and dramatically increase the efficiency and hence lower the cost of solar energy.

Ultrafast Spectroscopy - Elucidating Quantum Dynamics

We are developing and applying new methods to understand how the motion and dynamics of charges, excitons and phonons control the properties of semiconductor molecules, materials and devices.

Ultrafast Microscopy

Traditionally ultrafast spectroscopy has been conducted on large ensembles. But the motion of photoexcitations at the nanoscale is crucial to much of the physics of many systems.

Nanomaterials and Devices

We design and fabricate nanomaterials, including lanthanide-doped nanoparticles, colloidal quantum dots and hybrid organic-inorganic systems. We explore the photophysics of these systems using our ultrafast spectroscopy toolkit and also explore their use in next generation of electronic and photonic devices, such as photovoltaics that could break the Shockley-Queisser limit.