Spatial Energy Fluctuations Correlated to Fabrication Processes of CdSeTe/CdTe Thin-Films by Confocal Photoluminescence

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00385420" target="_blank" >RIV/68407700:21230/25:00385420 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1109/PVSC59419.2025.11132629" target="_blank" >https://doi.org/10.1109/PVSC59419.2025.11132629</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/PVSC59419.2025.11132629" target="_blank" >10.1109/PVSC59419.2025.11132629</a>

Result language

angličtina

Original language name

Spatial Energy Fluctuations Correlated to Fabrication Processes of CdSeTe/CdTe Thin-Films by Confocal Photoluminescence

Original language description

CdTe-based thin film solar cells have been commercially successful for many years. CdCl2 treatment and Cu or group-V doping is now ubiquitous in high-performance solar cells. Further device improvement is currently limited by Voc and fill factor. There has been recent discussion about spatial energy fluctuation in CdTe-based solar cells which may be performance-limiting. One technique to probe spatial energy fluctuations is photoluminescence (PL) mapping. However, conventional PL measurements have spatial resolution no smaller than hundreds of microns because of laser spot size and can have artifacts from glass emission. Therefore, a confocal PL technique is implemented to reject glass emission and observe sub-micron spatially resolved PL. To elucidate the origin of energy fluctuations during device fabrication, the confocal PL measurements are carried out layer-by-layer, before and after treatment and doping. It is observed that the CdCl2 treatment process introduces spatial energy fluctuations and further Cu doping only increases this non-uniformity.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

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

Project

<a href="/en/project/EH22_008%2F0004617" target="_blank" >EH22_008/0004617: Energy conversion and storage</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

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

Article name in the collection

Conference Record of the IEEE Photovoltaic Specialists Conference

ISBN

—

ISSN

0160-8371

e-ISSN

—

Number of pages

3

Pages from-to

820-822

Publisher name

Institute of Electrical and Electronics Engineers

Place of publication

New York

Event location

Montreal

Event date

Jun 8, 2025

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

001572091100294