Physical principles of the photovoltaic energy conversion: Temperature dependences of PV cell parameters
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41310%2F18%3A77558" target="_blank" >RIV/60460709:41310/18:77558 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4018/978-1-5225-3867-7.ch014" target="_blank" >http://dx.doi.org/10.4018/978-1-5225-3867-7.ch014</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4018/978-1-5225-3867-7.ch014" target="_blank" >10.4018/978-1-5225-3867-7.ch014</a>
Alternative languages
Result language
angličtina
Original language name
Physical principles of the photovoltaic energy conversion: Temperature dependences of PV cell parameters
Original language description
This chapter describes how the I-V characteristic of illuminated PV cells varies with temperature changes. The effect is explained according to the solid states theory. The higher temperature, the lower open-circuit voltage and the higher short-circuit current. This behavior is explained on the basis of band theory in solid-state physics. The increasing temperature causes a narrowing of the forbidden gap and a shift of the Fermi energy level toward the center of the forbidden gap. Both of these effects lead to a reduction of the potential barrier in the band diagram of the illuminated PN junction, thus to decrease of the photovoltaic voltage. In addition, the narrowing of the forbidden gap causes higher generation of electron-hole pairs in the illuminated PN junction and short-circuit current increases. The efficiency of the PV energy conversion decreases with the increasing temperature.
Czech name
—
Czech description
—
Classification
Type
C - Chapter in a specialist book
CEP classification
—
OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
Handbook of Research on Renewable Energy and Electric Resources for Sustainable Rural Development
ISBN
978-152253867-7
Number of pages of the result
25
Pages from-to
327-351
Number of pages of the book
672
Publisher name
IGI Global
Place of publication
Hershey PA, USA 17033
UT code for WoS chapter
—