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New method for lateral mapping of bimolecular recombination in thin-film organic solar cells

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Chemical Trend of Nonradiative Recombination in Cu(In,Ga)Se2 Alloys

Stefano Falletta

Nonradiative recombination in Cu(In,Ga)Se2 (CIGS) solar cells has long been attributed to the antisite defects MCu (M = In, Ga), but the underlying mechanism is still elusive. Using rigorous first-principles calculations, we demonstrate that the antisites ...

AMER PHYSICAL SOC2023

Electrical Losses Mitigation in Silicon Heterojunction Solar Cells

Laurie-Lou Senaud

To overcome the worldwide challenges of climate change, photovoltaics is foreseen to play a significant role in the world electricity production. Nowadays, single junction crystalline silicon (c-Si) based solar cells hold the largest share of the global ph ...

EPFL2021

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At the outermost surface of colloidal QDs are organic surface ligands which dynamically bind and release in solution to control the growth kinetics, control the size/shape of the crystals, passivate surface states, and provide colloidal stability through f ...

2021

Optimizing and Implementing Light Trapping in Thin Film, Mesostructured Photoanodes

Sophia Haussener, Silvan Suter, Rafael Angelus Graf, Diana Moreno Garcia

Stable semiconductor photoelectrodes for water-splitting often exhibit long absorption lengths and poor properties for the efficient separation and transport of photogenerated charges. We propose a combination of resonant and geometric light trapping for t ...

2020

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Stable semiconductor photoelectrodes for water splitting often exhibit long absorption lengths and poor properties for the efficient separation and transport of photogenerated charges. We propose a combination of resonant and geometric light trapping for t ...

AMER CHEMICAL SOC2020

Active biomaterials for mechanobiology

Mahmut Selman Sakar, Berna Ayse Özkale Edelmann

Active biomaterials offer novel approaches to study mechanotransduction in mammalian cells. These material systems probe cellular responses by dynamically modulating their resistance to endogenous forces or applying exogenous forces on cells in a temporall ...

2020

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In this paper, we report the evolution of silicon heterojunction solar cell properties focusing, in particular, on the indium tin oxide (ITO) layers upon consecutive thermal annealing. We find that the charge carrier density

N_{\rm e}

of the ITO increase ...

2019

Pushing the limit of Cs incorporation into FAPbBr3 perovskite to enhance solar cells performances

Mohammad Khaja Nazeeruddin, Berend Smit, Giulia Grancini, Valentin Ianis Emmanuel Queloz, Albertus Adrian Sutanto, Inés Garcia Benito, Olga Syzgantseva

Cation compositional engineering has revealed a powerful design tool to manipulate the perovskite structural and optoelectronic characteristics with a tremendous impact on device performances. Tuning the bandgap by cation and anion compositional mixing, fo ...

2018

Perovskite solar cells (PSCs) have attracted a substantial interest owing to a very fast achievement of efficiencies >20 % within only several years of development. However, for any solar cell to become technologically viable, two additional milestones hav ...

EPFL2018

Numerical Simulation of Temperature Dependence of MoOx Based SHJ Solar Cell

Christophe Ballif, Philipp Friedrich Hermann Löper, Stephanie Essig

Transition metal oxides based high efficiency silicon heterojunction (SHJ) solar cells have emerged as promising candidate due to their low manufacturing cost and avoidance of poisonous dopant gases. Temperature dependent J V curves in such solar cells cou ...

AMER INST PHYSICS2018

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of the ITO increase ...

2019