Concept

Strained silicon

Publications associées (75)

Growth and Doping Mechanisms of III-V Nanostructures by Selective Area Epitaxy

Selective area epitaxy (SAE), applied to semiconductor growth, allows tailored fabrication of intricate structures at the nanoscale with enhanced properties and functionalities. In the field of nanowires (NWs), it adds scalability by enabling the fabricati ...

EPFL2024

III-V Nitride Semiconductors Deposited At Low Temperature For Photovoltaic Applications

Jonathan Emanuel Thomet

This thesis reports on the study and use of low temperature processes for the deposition of indium gallium nitride (InGaN) thin films in order to alleviate some of the present drawbacks of its monolitic deposition on silicon for photovoltaic applications. ...

EPFL2023

Time-resolved multi-gate ion sensitive field effect transducer and system and method of operating the same

Jean-Michel Sallese, Adil Koukab

A time-resolved multi-gate ion sensitive field effect transducer, including a silicon layer, a P-doped region in the silicon layer and a first electrode in electric connection with the P doped region, a N-doped region in the silicon layer and a second elec ...

2023

Highly efficient THz four-wave mixing in doped silicon

Gabriel Aeppli

Third-order non-linearities are important because they allow control over light pulses in ubiquitous high-quality centro-symmetric materials like silicon and silica. Degenerate four-wave mixing provides a direct measure of the third-order non-linear sheet ...

SPRINGERNATURE2021

TID Degradation Mechanisms in 16-nm Bulk FinFETs Irradiated to Ultrahigh Doses

Christian Enz

This article investigates the total ionizing dose (TID) degradation mechanisms of 16-nm bulk Si FinFETs at ultrahigh doses. n- and p-FinFETs with several channel lengths are irradiated up to 1 Grad(SiO2) and then annealed for 24 h at 100 degrees C. Irradia ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021

Dopant-Free Bifacial Silicon Solar Cells

Christophe Ballif, Mathieu Gérard Boccard, Luca Massimiliano Antognini, Jean Cattin, Julie Amandine Dreon, Vincent Philippe Paratte, Sihua Zhong, Wenjie Lin, Hui Shen

Herein, challenges in the fabrication of full dopant-free bifacial silicon solar cells are discussed and efficient devices utilizing a MoO3/ indium tin oxide (ITO)/Ag hole-selective contact and ZnO/LiFx/Al electron-selective contacts with up to 79% short-c ...

WILEY-V C H VERLAG GMBH2021

Rational Design of Hole Transport Materials: Tools and Structure-Packing-Property Relationships

Kun-Han Lin

The growing demand for low-cost, large-scale and flexible electronics has led to a boost in research on organic semiconductors (OSC). Understanding structure-packing-property relationships (SPPR) and the role of molecular building blocks in charge transpor ...

EPFL2020

Elucidating the Doping Mechanism in Fluorene-Dithiophene-Based Hole Selective Layer Employing Ultrahydrophobic Ionic Liquid Dopant

Mohammad Khaja Nazeeruddin, Sanghyun Paek, Laura Calio

Perovskite solar cells have set a new milestone in terms of efficiencies in the thin film photovoltaics category. Long-term stability of perovskite solar cells is of paramount importance but remains a challenging task. The lack of perovskite solar cells st ...

2020

Optical-Microwave Pump-Probe Studies of Electronic Properties in Novel Materials

Ferenc Simon, Karoly Holczer, Bence Gábor Márkus, Sándor Kollarics, András Bojtor

Combined microwave-optical pump-probe methods are emerging to study the quantum state of spin qubit centers and the charge dynamics in semiconductors. A major hindrance is the limited bandwidth of microwave irradiation/detection circuitry which can be over ...

WILEY-V C H VERLAG GMBH2020

Multiarm and Substituent Effects on Charge Transport of Organic Hole Transport Materials

Mohammad Khaja Nazeeruddin, Kevin Sivula, Liang Yao, Antonio Prlj, Kun-Han Lin, Nikita Drigo, Han-Hee Cho

We explore several potential dopant-free triphenylamine-based hole transport materials for perovskite solar cells by combining two design strategies: (1) incorporation of multiple arms for mobility enhancement and (2) including Lewis bases that assist in d ...

2019

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