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Towards Quantitative Interpretation of Fourier-Transform Photocurrent Spectroscopy on Thin-Film Solar Cells

Franz-Josef Haug, Michael Elias Stückelberger, Jakub Holovsky, Martin Müller

The method of detecting deep defects in photovoltaic materials by Fourier-Transform Photocurrent Spectroscopy has gone through continuous development during the last two decades. Still, giving quantitative predictions of photovoltaic device performance is ...

2020

Grid-aware distributed control of electric vehicle charging stations in active distribution grids

Mario Paolone, Rahul Kumar Gupta, Sherif Alaa Salaheldin Fahmy

The penetration of electric vehicle (EV) charging stations (CSs), along with the progressive connection of stochastic distributed generation, is increasing the probability of violating the power distribution grid operational constraints and deteriorate the ...

Elsevier2020

Photoinduced Charge Transfer Dynamics in Blue-Coloured Diketopyrrolopyrrole (DPP) Dye-Sensitized Solar Cells

Heewon Bahng

The inception of push-pull organic dyes utilizing the donor-pi conjugated bridge-acceptor (D-pi-A) motif has created a paradigm shift in the design of efficient nanocrystalline dye-sensitized solar cells (DSSCs), offering control over aesthetic and perform ...

EPFL2019

Battery-Free, Sticker-Like, Device for Health Monitoring, Operated by Optical Power Transfer

Sandro Carrara, Nattakarn Wuthibenjaphonchai

This work presents the concept of a battery-free, sticker-like, device for a non-invasive health-monitoring sensor. The device consists of two functional blocks: an optical power-transfer block and an amperometric measurement block. The former accumulates ...

IEEE2018

Frontiers, opportunities, and challenges in perovskite solar cells: A critical review

Mohammad Khaja Nazeeruddin

The breakthrough discovery of organic-inorganic hybrid perovskite materials for converting solar energy into electrical energy has revolutionized the third generation photovoltaic devices. Within less than half a decade of rigorous research and development ...

ELSEVIER SCIENCE BV2018

Photovoltaic Model-Based Solar Irradiance Estimators: Performance Comparison and Application to Maximum Power Forecasting

Mario Paolone, Fabrizio Sossan, Enrica Scolari

Due to the increasing proportion of distributed photovoltaic (PV) production in the generation mix, the knowledge of the PV generation capacity has become a key factor. In this work, we propose to compute the PV plant maximum power starting from the indire ...

2018

Reliability of photovoltaic modules : from indoor testing to long-term performance prediction

Eleonora Annigoni

A fundamental challenge with solar energy is improving the reliability, and increasing the lifetime, of photovoltaic modules. Typically, photovoltaic module manufacturers guarantee 80% of the nominal power of their modules for 25 years, but this type of gu ...

EPFL2018

Real-Time Power-Reference Tracking Method for PV Converters

Mario Paolone, Lorenzo Enrique Reyes Chamorro

Due to the increasing presence of renewable inertia-less energy sources, power electronics interfaces are required to exploit their flexibility in order to support the overall grid quality of service. One way to achieve this, is that power converters are c ...

IEEE2017

Methoxydiphenylamine-substituted fluorene derivatives as hole transporting materials: role of molecular interaction on device photovoltaic performance

Mohammad Khaja Nazeeruddin, Michael Saliba, Sanghyun Paek

The molecular structure of the hole transporting material (HTM) play an important role in hole extraction in a perovskite solar cells. It has a significant influence on the molecular planarity, energy level, and charge transport properties. Understanding t ...

Nature Research2017

Optical Evaluation of the Rear Contacts of Crystalline Silicon Solar Cells by Coupled Electromagnetic and Statistical Ray-Optics Modeling

Christophe Ballif, Franz-Josef Haug, Ali Dabirian, Stefaan De Wolf, Monica Morales Masis

High-efficiency crystalline silicon (c-Si) solar cells increasingly feature sophisticated electron and hole contacts aimed at minimizing electronic losses. At the rear of photovoltaic devices, such contacts-usually consisting of stacks of functional layers ...

Ieee-Inst Electrical Electronics Engineers Inc2017

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