Browsing by Author "Martínez-Denegrí Sánchez, Guillermo"
Now showing items 1-8 of 8
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All-Nanoparticle SnO 2 /TiO 2 Electron-Transporting Layers Processed at Low Temperature for Efficient Thin-Film Perovskite Solar Cells
(2018-10-22)
Article
Open AccessSolution-processed metal halide perovskite materials haverevealed outstanding optoelectronic features that make them uniquely suitedfor photovoltaic applications. Although a rapidprogresshasledtoperformances similar to ... -
Ergodic Light Propagation in a Half-Cylinder Photonic Plate for Optimal Absorption in Perovskite Solar Cells
(2019-05-17)
Article
Open AccessIn an optical medium slab, a randomization of the interfaces will lead to an ergodic light propagation, implying a kind of light trapping that sets an upper limit for a broadband absorption enhancement factor. However, in ... -
Formamidinium Incorporation into Compact Lead Iodide for Low Band Gap Perovskite Solar Cells with Open-Circuit Voltage Approaching the Radiative Limit
(2019-03-06)
Article
Open AccessTo bring hybrid lead halide perovskite solar cells toward the Shockley-Queisser limit requires lowering the band gap while simultaneously increasing the open-circuit voltage. This, to some extent divergent objective, may ... -
Inverse Optical Cavity Design for Ultrabroadband Light Absorption Beyond the Conventional Limit in Low-Bandgap Nonfullerene Acceptor–Based Solar Cells
(2019-05-23)
Article
Open AccessIn the subwavelength regime, several nanophotonic configurations have been proposed to overcome the conventional light trapping or light absorption enhancement limit in solar cells also known as the Yablonovitch limit. It ... -
Light harvesting and energy efficiency in perovskite solar cells and their applications
(Universitat Politècnica de Catalunya, 2021-09-29)
Doctoral thesis
Open AccessThe environmental issues associated with the use of conventional fuels necessitates the utilisation of renewable energy sources, as well as the implementation of energy efficient designs, in order to decrease electricity ... -
Relation between Fluorescence Quantum Yield and Open-Circuit Voltage in Complete Perovskite Solar Cells
(Wiley, 2020-04)
Article
Open AccessBringing the Voc of a perovskite solar cell toward its radiative value, corresponding to a 100% external fluorescence quantum yield (QY) of the cell, has been pursued to reach the highest performance photovoltaic devices. ... -
Stabilization of the J-V characteristic of a perovskite solar cell using an intelligent control loop
(2021-01-02)
Article
Open AccessThe phenomena related to charge trapping are among the most relevant open issues that affect the long-term stability of perovskite-based devices. According to this, the objective of this paper is to report experimental ... -
Water splitting for hydrogen chemisorption in graphene oxide dynamically evolving to a graphane character lattice
(2019-11-01)
Article
Open AccessGraphane offers a safe and high capacity hydrogen storage. Unfortunately, production of graphane directly from its parent material graphene requires breaking the extended p bond, implying either harsh chemical environments ...
