Degradation analysis of GaAs solar cells at thermal stress

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00104943" target="_blank" >RIV/00216224:14310/18:00104943 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26220/18:PU129296

Result on the web

<a href="http://dx.doi.org/10.1016/j.apsusc.2018.05.093" target="_blank" >http://dx.doi.org/10.1016/j.apsusc.2018.05.093</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2018.05.093" target="_blank" >10.1016/j.apsusc.2018.05.093</a>

Result language

angličtina

Original language name

Degradation analysis of GaAs solar cells at thermal stress

Original language description

The work focuses on the study of structure stability and electrical parameters of photovoltaic cells based on GaAs with Ge substrate. Solar cells of this type are used especially in adverse environments such as space applications, so their working parameters should be stable even under extreme operating conditions. Changes of electrical characteristics of the cells were recorded in the form of noise measurements for examination of distinctions in the pn-junction. Current-voltage characteristics under the light illumination and in the dark environment for comparison of the cells performance were also measured. Infrared camera showed the thermal irradiation of the stressed and damaged parts and support to localize the defected areas. Atomic force microscope (AFM) was applied for observation of changes in three-dimensional topography with high resolution. Scanning electron microscope (SEM) with energy-dispersive X-ray spectroscopy (EDS) showed morphology of the solar cells and provided the elemental analysis of the samples. Raman spectroscopy provided a structural fingerprint and helped to evaluate the influence of induced degradation methods. Variations of morphology and composition were compared, detected and well-observed. Furthermore, electrical measurements proved the solar cells to be stable under temperature stresses.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Applied Surface Science

ISSN

0169-4332

e-ISSN

—

Volume of the periodical

461

Issue of the periodical within the volume

15 December 2018

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

212-220

UT code for WoS article

000450528100037

EID of the result in the Scopus database

2-s2.0-85047464406