A Ping-Pong Self-Sustaining Avalanche in Ti-LGAD

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F10974938%3A_____%2F25%3A25_88_03" target="_blank" >RIV/10974938:_____/25:25_88_03 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1140/epjs/s11734-025-01479-1" target="_blank" >https://doi.org/10.1140/epjs/s11734-025-01479-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjs/s11734-025-01479-1" target="_blank" >10.1140/epjs/s11734-025-01479-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Ping-Pong Self-Sustaining Avalanche in Ti-LGAD

Popis výsledku v původním jazyce

This work is a continuation of our previous research on trench-isolated LGAD sensors that reveal exceptionally large, long-duration signals without external stimuli, so called “ghost signals”. Here, we extend the LGAD study to corresponding PIN sensors with the same inter-pixel isolation structure (double trench). In addition to previously studied sensors, we investigated new double-trenched LGADs where the gain layer was co-implanted with carbon. All studied LGADs exhibited spontaneous ghost signals above a certain threshold value of applied bias, whereas it was not observed in corresponding PINs. On the other hand, strong and broad signal was generated in the inter-pixel region of PINs using fs-laser illumination under specific parameters. We will discuss the hypotheses for the mechanism behind these signals. © The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2025.

Název v anglickém jazyce

A Ping-Pong Self-Sustaining Avalanche in Ti-LGAD

Popis výsledku anglicky

This work is a continuation of our previous research on trench-isolated LGAD sensors that reveal exceptionally large, long-duration signals without external stimuli, so called “ghost signals”. Here, we extend the LGAD study to corresponding PIN sensors with the same inter-pixel isolation structure (double trench). In addition to previously studied sensors, we investigated new double-trenched LGADs where the gain layer was co-implanted with carbon. All studied LGADs exhibited spontaneous ghost signals above a certain threshold value of applied bias, whereas it was not observed in corresponding PINs. On the other hand, strong and broad signal was generated in the inter-pixel region of PINs using fs-laser illumination under specific parameters. We will discuss the hypotheses for the mechanism behind these signals. © The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2025.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Physical Journal - Special Topics

ISSN

1951-6355

e-ISSN

1951-6401

Svazek periodika

1

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

167929

Kód UT WoS článku

001415189300001

EID výsledku v databázi Scopus

2-s2.0-85218051844