Thin film polycrystalline Si solar cells studied in transient regime by optical pump-terahertz probe spectroscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00455242" target="_blank" >RIV/68378271:_____/15:00455242 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/1.4937388" target="_blank" >http://dx.doi.org/10.1063/1.4937388</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4937388" target="_blank" >10.1063/1.4937388</a>

Result language

angličtina

Original language name

Thin film polycrystalline Si solar cells studied in transient regime by optical pump-terahertz probe spectroscopy

Original language description

We used time-resolved terahertz spectroscopy to study ultrafast photoconductivity of polycrystalline thin-film silicon solar cells. We selected a series of samples, which exhibited variable conversion efficiencies due to hydrogen plasma passivation undervarious technological conditions. The decay of the transient terahertz conductivity shows two components: the fast one is related to the charge recombination at interfaces, while the slow nanosecond one is attributed to the trapping of photocarriers bydefects localized at grain boundaries or at dislocations in the polycrystalline p- layer of the structure. We observed a clear correlation between the open-circuit voltage and the nanosecond-scale decay time of the transient terahertz conductivity of thesolar cells. Thus, the terahertz spectroscopy appears to be a useful contactless tool for inspecting the local photoconductivity of solar cells including, in particular, various nanostructured schemes.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA13-12386S" target="_blank" >GA13-12386S: Photoconductivity and dynamics of excitations in nanostructured and disordered semiconductors on ultrafast time scale</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Applied Physics Letters

ISSN

0003-6951

e-ISSN

—

Volume of the periodical

107

Issue of the periodical within the volume

23

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

"233901-1"-"233901-5"

UT code for WoS article

000367010800068

EID of the result in the Scopus database

2-s2.0-84949199135