Publication

Growth of single-crystalline KNbO3 nanostructures

Publications associées (32)

Microfluidics of binary liquid mixtures with temperature-dependent miscibility

Liquid-liquid microfluidic systems rely on the intricate control over the fluid properties of either miscible or immiscible mixtures. Herein, we report on the use of partially miscible binary liquid mixtures that lend their microfluidic properties from a h ...

ROYAL SOC CHEMISTRY2020

Molecular Engineering of Electrode Surfaces for Electrocatalysis

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Electrocatalysts play an important part on the route towards environmental friendly energy sources. They support modern technologies like fuel cells to move further away from the utilization of fossil fuels and the resulting CO2 emission into our atmospher ...

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The global photovoltaic market is mostly dominated by solar cells based on crystalline silicon (c-Si), which are covering 95% of the market. This thesis concerns silicon heterojunction (SHJ), a high-efficiency technology with a 2% market share in 2018, but ...

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Mn4+-Substituted Li-Rich Li1.2Mn0.43+Mnx4+Ti0.4-xO2 Materials with High Energy Density

Yong Yang, Chunyang Zhang

In this work, Li-rich Li1.2Mn0.43+Mnx4+Ti0.4-xO2 (LMMxTO, 0

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Surface, Interface, and Bulk Electronic and Chemical Properties of Complete Perovskite Solar Cells: Tapered Cross-Section Photoelectron Spectroscopy, a Novel Solution

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Thomas Mayer

The surface, interface, and bulk properties are a few of the most critical factors that influence the performance of perovskite solar cells. The photoelectron spectroscopy (PES) is used as a technique to analyze these properties. However, the information d ...

AMER CHEMICAL SOC2020

Fluorination of Organic Spacer Impacts on the Structural and Optical Response of 2D Perovskites

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Low-dimensional hybrid perovskites have triggered significant research interest due to their intrinsically tunable optoelectronic properties and technologically relevant material stability. In particular, the role of the organic spacer on the inherent stru ...

2020

Nanocrystals as Precursors in Solid-State Reactions for Size- and Shape-Controlled Polyelemental Nanomaterials

Emad Oveisi, Chethana Janardhana Gadiyar, Raffaella Buonsanti, Anna Loiudice, Valeria Mantella, Pranit Srinivas Iyengar, Laia Castilla Amorós, Dragos-Constantin Stoian

Solid-state reactions between micrometer-size powders are among the oldest, simplest, and still widely used methods for the fabrication of inorganic solids. These reactions are intrinsically slow because, although the precursorsare "well mixed" at the macr ...

AMER CHEMICAL SOC2020

Synthesis of metal oxide photoanodes for water splitting using nanocrystals as precursors

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Photoelectrochemical (PEC) water splitting devices are envisioned to play a key role in the societal transition towards sustainable energy sources. In this context, multinary metal oxide semiconductors are the most promising candidates for the role of phot ...

EPFL2020

Ligand-mediated formation of Cu/metal oxide hybrid nanocrystals with tunable number of interfaces

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Combining domains of different chemical nature within the same hybrid material through the formation of heterojunctions provides the opportunity to exploit the properties of each individual component within the same nano-object; furthermore, new synergisti ...

2020

Increasing Functionality of III-V Nanowires on Silicon Substrates

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Progress in nanotechnology, including fabrication and characterization tools, opened up the unprecedented low dimensional materials era, where we can manipulate and structure matter on a size scale that we could not reach before. Due to many interesting pr ...

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Why choosing the right partner is important: stabilization of ternary Cs(y)GUA(x)FA((1-y-x))PbI(3)perovskites

Michael Graetzel, Ursula Röthlisberger, Marko Mladenovic, Ariadni Boziki

Lead halide perovskites with mixtures of monovalent cations have attracted wide attention due to the possibility of preferentially stabilizing the perovskite phase with respect to photovoltaically less suitable competing phases. Here, we present a theoreti ...

ROYAL SOC CHEMISTRY2020

Soft Template-Controlled Growth of High-Quality CsPbI3 Films for Efficient and Stable Solar Cells

Mohammad Khaja Nazeeruddin, Tom Theodorus Antonius Lummen, Yong Ding, Xuehui Liu, Cheng Liu

The unfavorable morphology and inefficient utilization of phase transition reversibility have limited the high-temperature-processed inorganic perovskite films in both efficiency and stability. Here, a simple soft template-controlled growth (STCG) method i ...

2020