Marina Mariano

Marina Mariano
Yale University | YU · Department of Chemical & Environmental Engineering

PhD in Photonics

About

20
Publications
1,917
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465
Citations
Additional affiliations
November 2015 - present
Yale University
Position
  • PostDoc Position
January 2009 - October 2014
ICFO Institute of Photonic Sciences
Position
  • PhD Student
January 2009 - October 2014
Universitat Politècnica de Catalunya
Position
  • PhD Student

Publications

Publications (20)
Chapter
Interest in two-dimensional (2D) transition metal carbides and/or nitrides (known as MXenes) is growing exponentially across various scientific and engineering disciplines owing to their excellent mechanical properties, rich surface chemistries, metallic conductivity, and tunable transition metal chemistries. A variety of methods have been recently...
Article
Electron acceptor degradation of organic solar cells is considered a main contributor to performance instability and a barrier for the commercialization of organic solar cells. Here, we selectively remove the electron acceptors on the surface of donor:acceptor blend films using a tape stripping technique. The near edge X-ray absorption fine structu...
Article
Mechanical fragility and insufficient light absorption are two major challenges for thin flexible crystalline Si-based solar cells. Flexible hybrid single-walled carbon nanotube (SWNT)/Si solar cells are demonstrated by applying scalable room-temperature processes for the fabrication of solar-cell components (e.g., preparation of SWNT thin films an...
Article
We demonstrate the use of fossilized diatoms (diatomaceous earth) as light traps in regioregular poly(3-hexylthiophene) (P3HT) and fullerene derivative [6,6]-phenyl-C60-butyric acid methyl ester (PCBM) solar cells. Diatoms, the most common type of phytoplankton found in nature, are optimized for light absorption through millions of years of adaptiv...
Article
Over the past decade, there has been significant improvement in the performance of polymer solar cells (PSCs). Devices with power conversion efficiency (PCE) well over 10% have been developed and in some cases the estimated device lifetime is approaching 10 years. In contrast, there has been limited research into the aesthetics of PSCs, which may b...
Article
MXenes, a recently discovered family of two-dimensional materials, have obtained a large consideration since they exhibit properties with potential applications. Among them, their hydrophilic and metallic conductivity have opened a way to deposit them by solution process techniques. We will present Ti3C2Tx delaminated monolayers forming ultra thin...
Article
Full-text available
Extracting the light trapped in a waveguide, or the opposite effect of trapping light in a thin region and guiding it perpendicular to its incident propagation direction, is essential for optimal energetic performance in illumination, display or light harvesting devices. Here we demonstrate that the paradoxical goal of letting as much light in or o...
Article
MXenes, a new family of two-dimensional structures, have recently gained significant attention due to their unique physical properties suitable for a wide range of potential applications. Here we introduce Ti3C2Tx delaminated monolayers as ultrathin transparent conductors with properties exceeding comparable reduced graphene oxide films. Solution p...
Article
We studied the performance over time of opaque and semi-transparent PTB7:PC71BM bulk hetero-junction solar cells. For unsealed inverted configuration cells we observe that when the isolation from the environment is improved, the degradation observed is dominated by one single exponential decay. We demonstrate that a dielectric multilayer stack of a...
Article
Over the last three decades, progress in the organic photovoltaic field has resulted in some device features which make organic cells applicable in electricity generation configurations where the standard silicon-based technology is not suitable, for instance, when a semitransparent photovoltaic panel is needed. When the thin film solar cell perfor...
Article
An effective charge collection in the majority of organic solar cells is achieved when the photo-converting layer is just a few tens of nanometer in thickness. In such conditions light management is an essential ingredient to reach the best performance from such type of organic devices. This chapter introduces an inverse integration procedure to op...
Article
Full-text available
We propose the use of whispering gallery mode coupling in a novel configuration based on implementing a thin film cell on the backside of an array of parallel fibers. We performed numerical calculations using the parameters of a thin film organic cell which demonstrate that light coupling becomes more effective as the angle for the incident light r...
Article
Identifying molecular species and conformations at surfaces is of interest for both catalytic and biointerfacial research. Here, we present an extinction and second harmonic spectroscopy study of films of crystal violet together with quantum chemistry ab initio calculations on several conformation geometries of this dye. By comparing experimental a...
Article
Full-text available
We demonstrate coherent optical coupling between molecular and plasmon resonances that are well separated in energy. In the presence of metallic nanoparticles, the second harmonic spectrum of organic dyes no longer peaks at the absorption wavelength but is instead blueshifted by 25 nm towards the localized plasmon resonance. The phase of the light...
Article
Full-text available
We carry out wavelength-dependent second harmonic interference experiments using thin films of an organic dye as nonlinear optical sources. While the measured difference of refractive index between the fundamental and second harmonic wavelengths follows the theoretical expectation for air in a wide spectral region, anomalous dispersion is observed...
Article
Full-text available
Projecte fet en col.laboració amb l'Institut de Ciències Fotòniques Joining organic molecules and metallic nanoparticles into coupled heterostruc-tures allows tuning their optical properties and o®ers novel possibilities for manipulating theiremission patterns. This Master Thesis is aimed at probing and understanding the nature ofthe optical coupli...

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