Publications related to Spectro

Related publications (18)

Photovoltaic panels diffusion in Switzerland: understanding adopters profiles using clustering methods

Pablo Francisco Martinez Alcaraz, Claudia Rebeca Binder Signer, Gloria Serra Coch, Maria Anna Hecher

The adoption of photovoltaic panels (PV) by households is essential to meet residential Swiss energy transition targets. While previous studies have mostly focused on the factors influencing PV adoption by comparing adopters with non-adopters, few have ack ...

2025

Re-defining Non-tracking Solar Cell Efficiency Limits with Directional Spectral Filters

Giulia Tagliabue, Alan Richard Bowman

Optical filters that respond to the wavelength and direction of incident light can be used to increase the efficiency of tracking solar cells. However, as tracking solar cells are more expensive to install and maintain, it is likely that nontracking solar ...

American Chemical Society (ACS)2025

Evaluating the role of inkjet printing in perovskite solar modules manufacturing using mathematical modeling

Mohammad Khaja Nazeeruddin, François Maréchal, Naveen Bhati

Given the solution-phase processability and low energy intensity of several techniques, many techniques have been explored to manufacture these cells and modules. Among them, inkjet printing has shown potential for fabricating all the active layers while a ...

2024

Colouring solutions for building integrated photovoltaic modules: A review

Christophe Ballif, Aïcha Hessler-Wyser, Antonin Faes, Alejandro Borja Block, Umang Bhupatrai Desai, Marie Amélie Camille Courtant

The conflict between PV installations and other land uses, such as forestry or agriculture, highlights the urgency for alternative solutions. Integrating PV technology into the built environment is a compelling strategy to mitigate these challenges, enabli ...

2024

Blade-Coating of High Crystallinity Cesium-Formamidinium Perovskite Formulations

Anaël Morgane Jaffrès, Christophe Ballif, Aïcha Hessler-Wyser, Christian Michael Wolff, Mostafa Rabie Shlaly Bahr Othman

Up-scalable coating processes need to be developed to manufacture efficient and stable perovskite-based solar modules. In this work, we combine two Lewis base additives (N,N′-dimethylpropyleneurea and thiourea) to fabricate high-quality Cs0.15FA0.85PbI3 pe ...

2024

Corrigendum to "Geographic network effects to engage people in the energy transition: The case of PV in Switzerland" (vol 9, e17800, 2023)

Claudia Rebeca Binder Signer, Romano Tobias Wyss, Gloria Serra Coch

With the energy transition and CO2 emissions reduction as a priority on the international policy agenda, governments worldwide are trying to engage the population in investing in renewable energies. In this paper, we study the role of information access an ...

2023

Ink-Based CuIn0.3Ga0.7S2 Nanocrystal Thin Films as Photocathodes for Photoelectrochemical CO2 Reduction Reaction

Kevin Sivula, Jun Ho Yum, Nestor Guijarro Carratala

One of the promising methods to solve the current energyand environmentissues is photoelectrochemical (PEC) water splitting and CO2 reduction reaction. Chalcopyrite copper indium gallium sulfide (CIGS)and CuIn0.3Ga0.7S2 nanocrystal thinfilms have been cons ...

AMER CHEMICAL SOC2023

Future Swiss Energy Economy: The Challenge of Storing Renewable Energy

Paul Joseph Dyson, Andreas Züttel, Noris André Gallandat

Fossil fuels and materials on Earth are a finite resource and the disposal of waste into the air, on land, and into water has an impact on our environment on a global level. Using Switzerland as an example, the energy demand and the technical challenges, a ...

FRONTIERS MEDIA SA2022

Multiple roles of negative thermal expansion material for high-performance fully-air processed perovskite solar cells

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Bin Ding

For fully-air-processed perovskite solar cells (PSCs), high-quality perovskite films and improved intrinsic stability are critical for high photovoltaic performance. However, strain, as a critical factor of perovskite instability, not only harms the effici ...

ELSEVIER SCIENCE SA2022

Decentralized ICT integration in residential buildings

François Maréchal, Dorsan Alexis A. Lepour

To answer the growing demand for data computing, data storage and data transmission, the current trend is to construct centralized hyperscale data centers, whose power usage effectiveness (PUE) has substantially improved in recent years. Still, the operati ...

Technical University of Denmark2022

A performance-driven simulation workflow for PV integration into the design process: application on an innovative building project in Switzerland

Sergi Aguacil Moreno

In the construction sector, the integration of active elements functioning both as building envelope material and on-site electricity generator is identified as a key measure to achieve the 2050 targets and carbon neutrality (Aguacil Moreno, 2019; Aguacil ...

2021

Rapid hybrid perovskite film crystallization from solution

Ulf Anders Hagfeldt, Nikolaos Vlachopoulos, Lukas Pfeifer, Sandy Sanchez Alonso

The use of a solution process to grow perovskite thin films allows to extend the material processability. It is known that the physicochemical properties of the perovskite material can be tuned by altering the solution precursors as well as by controlling ...

Royal Society of Chemistry2021

Supramolecular Co-adsorption on TiO2 to enhance the efficiency of dye-sensitized solar cells

Ulf Anders Hagfeldt

Three novel push-pull dyes, with carbazole donors, coded AJ502, TZ101 and TZ102 are synthesized and applied as co-sensitizers in dye-sensitized solar cells (DSSCs). TZ101 and TZ102 have similar structures except for two fluorine atoms introduced on the ben ...

Royal Society of Chemistry2021

Computational studies of the structural and optical properties of organic-inorganic lead halide perovskites

Ariadni Boziki

The rapid rise of organic-inorganic lead halide perovskites has amazed the photovoltaic community. As the efficiency race continues for this revolutionary class of light-harvesting materials, many questions on the structural, electronic and optical propert ...

EPFL2019

Perovskite/Silicon Tandem Solar Cells: Toward Affordable Ultra-High Efficiency Photovoltaics ?

Jérémie Werner

Nowadays the photovoltaics market is dominated by crystalline silicon solar cells, which are approaching their theoretical efficiency limit. Novel solutions have to be found for photovoltaics to further enhance its competitiveness with other energy sources ...

EPFL2018

Energy integration of CO2 networks and Power to Gas for emerging energy autonomous cities in Europe

François Maréchal, Luc Girardin, Raluca-Ancuta Suciu

The concept of urban CO2 networks has been developed to deploy heat pump based district heating and cooling systems in dense urban areas. The use of the CO2 phase change reduces the cost of the heat distribution while allowing to recover waste heat that is ...

2018

A Grid Reactor with Low Ion Bombardment Energy for Large Area PECVD of Thin Film Silicon Solar Cells

Michaël Chesaux

EPFL2013

Surface Design in Solid-State Dye Sensitized Solar Cells: Effects of Zwitterionic Co-adsorbents on Photovoltaic Performance

Michael Graetzel, Shaik Mohammed Zakeeruddin, Robin Humphry-Baker, Mingkui Wang, Soo-Jin Moon, Carole Graetzel, Nathalie Rossier-Iten

2009