Coexisting and Competing Light-Matter Interaction Regimes in Meta-Voltaic Systems

Roberto Termine^a, vincenzo Caligiuri^a^,^b, Svetalana Siprova^b, Aniket Patra^b^,^c, Giuseppe E. Lio^d, SImona Cilurzo^b, Attilio Golemme^a^,^b, Antonio De Luca^a^,^b

^aCNR Nanotec UOS Rende, via P. Bucci, 31D, 87036, Rende (CS), Italy

^bDepartment of Physics, University of Calabria, via P. Bucci, 31C, 87036, Rende (CS), Italy

^cIstituto Italiano di Tecnologia, via Morego 30, 16163 Genova (GE), Italy

^dCNR-INO and European Laboratory for Non Linear Spectroscopy (LENS), Via Nello Carrara, 1 - 50019, Sesto Fiorentino, Firenze (FI), Italy

NIPHO
Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO22)

Online, Spain, 2022 February 14th - 15th

Organizers: Giulia Grancini, Mónica Lira-Cantú and Silvia Colella

Contributed talk, Roberto Termine, presentation 022
DOI: https://doi.org/10.29363/nanoge.nipho.2022.022
Publication date: 11th November 2021

The capability of matter to store light energy under the form of electronic excitations constitutes the most fundamental of a series of phenomena classified as “light-matter interactions”. Among them the quantum framework in which an atom or a molecule interacts with a resonant cavity is a very unique system to study the light-matter interaction. A wisely-tailored resonant cavity can enhance the spontaneous emission rate of a fluorophore by Purcell effect [1,2] and in such a scenario, the exciton lifetime is significantly reduced; usually, a resonant cavity is prepared sandwiching a dielectric medium between two metal layers with a metal/dielectric/metal (MIM). On the other side, there is a plethora of applications in which longer exciton lifetimes are required, as for the photovoltaics. Provided such assumptions, it is easy to understand the reason why such two concurrent light-matter interaction regimes are rarely found together in the same technological design. Despite this, we will describe a particular system in which photovoltaic and Purcell effect coexist and their competition can be engineered together to obtain unique properties.

Indeed, we prepared a “Metavoltaic” cell from the fusion of MIM and photovoltaic devices: we used a MaPbI₃ perovskite based photovoltaic cell as dielectric and the two metals forming the cavity also worked as electrodes of the embedded photovoltaic cell. In this system, two regimes coexist and compete so that it is possible to probe the light-matter interaction via a modification of the photovoltaic effect. In particular we studied how the external quantum efficiency (EQE) of the photovoltaic cell measured at different incidence angles of the light can be affected by the cavity resonance modes due to the cavity-atom interaction. Our fundamental investigations provide new insight on the ever-growing interesting field of light-matter interactions, at the same time opening to the possibility to endow photovoltaic systems with an angular dispersion, a property that can help overcoming light-harvesting limitations.

References:

[1] G. M. Akselrod, C. Argyropoulos, T. B. Hoang, C. Ciracì, C. Fang, J. Huang, D. R. Smith, and M. H. Mikkelsen, Probing the Mechanisms of Large Purcell Enhancement in Plasmonic Nanoantennas, Nature Photonics 8, 835 (2014).

[2] Z. Jacob, I. I. Smolyaninov, and E. E. Narimanov, Broadband Purcell Effect: Radiative Decay Engineering with Metamaterials, Applied Physics Letters 100, 181105 (2012)

nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.

MATSUS

Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.

International Conference on Hybrid and Organic Photovoltaics

International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.

Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics

The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.

International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics

The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.