Publications related to Depletion region

Numerical simulations of hole carrier selective contacts in p-type c-Si solar cells

Christophe Ballif, Andrea Ingenito, Philipp Friedrich Hermann Löper

This work presents a systematic analysis of the transport mechanism and surface passivation of tunneling oxide (SiO2)/p-type poly-silicon (poly-Si(p)) junctions applied to p-type crystalline silicon (c-Si) solar cells by means of TCAD numerical simulations ...

ELSEVIER2019

First Near-Ultraviolet- and Blue-Enhanced Backside-Illuminated Single-Photon Avalanche Diode Based on Standard SOI CMOS Technology

Edoardo Charbon, Claudio Bruschini, Myung Jae Lee

We present the world's first backside-illuminated (BSI) single-photon avalanche diode (SPAD) based on standard silicon-on-insulator (SOI) complementary metal-oxide semiconductor (CMOS) technology. This SPAD achieves a good dark count rate (DCR) after backs ...

2019

Elucidation of photovoltage origin and charge transport in Cu2O heterojunctions for solar energy conversion

Jingshan Luo, Matthew Thomas Mayer

Heterojunctions between p-type cuprous oxide (Cu2O) and suitable n-type layers stand out as some of the best performing and abundant oxide photoabsorbers currently available for the generation of hydrogen with photoelectrochemical cells or conversion of so ...

2019

Passivation, conductivity, and selectivity in solar cell contacts: Concepts and simulations based on a unified partial-resistances framework

Mathieu Gérard Boccard

Passivation, conductivity, and selectivity are often acknowledged as the three requirements for optimal contacts to photovoltaic solar cells. Although there are generally accepted definitions and metrics for passivation and conductivity, a common understan ...

2019

Saddle-like, π-conjugated, cyclooctatetrathiophene-based, hole-transporting material for perovskite solar cells

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Giulia Grancini, Inés Garcia Benito, Javier Urieta Mora

A flexible, saddle-like, π-conjugated skeleton composed of four fused thiophene rings forming a cyclooctatetrathiophene (CoTh) with four triphenylamines (CoTh-TTPA) is presented as a hole-transporting material (HTM) for perovskite solar cells. The new HTM ...

2019

Influence of free charge carrier density on the magnetic behavior of (Zn,Co)O thin film studied by Field Effect modulation of magnetotransport

Harald Brune, Stefano Rusponi, Anne Lehnert

The origin of (ferro)magnetic ordering in transition metal doped ZnO is a still open question. For applications it is fundamental to establish if it arises from magnetically ordered impurity clusters embedded into the semiconducting matrix or if it origina ...

2019

Novel Slanted Field Plate Technology for GaN HEMTs by Grayscale Lithography on Flowable Oxide

Elison de Nazareth Matioli, Jun Ma, Luca Nela, Taifang Wang

We report a novel process to achieve slanted field plate (S-FP), which is a field plate with a gradual increase thickness from gate edge towards drain - utilizing grayscale lithography on flowable oxide (FOX) in single process step, in which developed FOX ...

IEEE2019

Contributions to the contact resistivity in fired tunnel-oxide passivating contacts for crystalline silicon solar cells

Christophe Ballif, Franz-Josef Haug, Andrea Ingenito, Sofia Libraro, Frank Meyer

We investigate the contact resistivity of p-type passivating contacts for silicon solar cells. Our contact structures are compatible with firing, a rapid annealing process similar to the one used for sintering of the screen-printed metallisation in solar c ...

2019

1200 V Multi-Channel Power Devices with 2.8 Omega.mm ON-Resistance

Elison de Nazareth Matioli, Jun Ma, Catherine Erine, Minghua Zhu, Kai Cheng

Here we report novel multi-channel AlGaN/GaN MOSHEMTs with high breakdown voltage (V-BR) and low ON-resistance (R-ON). The multi-channel structure was judiciously designed to yield a small sheet resistance (R-s) of 80 Omega/sq using only four 2DEG channels ...

IEEE2019

Annealing of Silicon Heterojunction Solar Cells: Interplay of Solar Cell and Indium Tin Oxide Properties

Christophe Ballif, Raphaël François Lemerle, Mathieu Gérard Boccard, Jan Haschke, Brahim Aissa

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

Depletion region

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Numerical simulations of hole carrier selective contacts in p-type c-Si solar cells

First Near-Ultraviolet- and Blue-Enhanced Backside-Illuminated Single-Photon Avalanche Diode Based on Standard SOI CMOS Technology

Elucidation of photovoltage origin and charge transport in Cu2O heterojunctions for solar energy conversion

Passivation, conductivity, and selectivity in solar cell contacts: Concepts and simulations based on a unified partial-resistances framework

Saddle-like, π-conjugated, cyclooctatetrathiophene-based, hole-transporting material for perovskite solar cells

Influence of free charge carrier density on the magnetic behavior of (Zn,Co)O thin film studied by Field Effect modulation of magnetotransport

Novel Slanted Field Plate Technology for GaN HEMTs by Grayscale Lithography on Flowable Oxide

Contributions to the contact resistivity in fired tunnel-oxide passivating contacts for crystalline silicon solar cells

1200 V Multi-Channel Power Devices with 2.8 Omega.mm ON-Resistance

Annealing of Silicon Heterojunction Solar Cells: Interplay of Solar Cell and Indium Tin Oxide Properties

Influence of free charge carrier density on the magnetic behavior of (Zn,Co)O thin film studied by Field Effect modulation of magnetotransport

Numerical simulations of hole carrier selective contacts in p-type c-Si solar cells

Saddle-like, π-conjugated, cyclooctatetrathiophene-based, hole-transporting material for perovskite solar cells

Passivation, conductivity, and selectivity in solar cell contacts: Concepts and simulations based on a unified partial-resistances framework

Elucidation of photovoltage origin and charge transport in Cu2O heterojunctions for solar energy conversion

First Near-Ultraviolet- and Blue-Enhanced Backside-Illuminated Single-Photon Avalanche Diode Based on Standard SOI CMOS Technology

Novel Slanted Field Plate Technology for GaN HEMTs by Grayscale Lithography on Flowable Oxide

Annealing of Silicon Heterojunction Solar Cells: Interplay of Solar Cell and Indium Tin Oxide Properties

1200 V Multi-Channel Power Devices with 2.8 Omega.mm ON-Resistance

Contributions to the contact resistivity in fired tunnel-oxide passivating contacts for crystalline silicon solar cells