Potential energy yield increase of a solar spectra down-converter equipped photovoltaic device in real operational conditions

Bartosz Fetliński , Michał Malinowski


Average Photon Energy is good approximator of PV cell efficiency increase due to DC. Abstract In this work, we evaluate the impact of solar spectrum down-converter (DC) on an energy yield of solar cells working in real world meteorological conditions. For this purpose, a simple model of PV device with a down-converting layer is used, with inputs (spectra, irradiance, temperature) taken from the public NREL database for their outdoor test facility. The model assumes ideal external quantum efficiency (EQE). The analysis showed that in these conditions the energy yield increase from the use of DC system is 23.64% which is bigger than improvement due to DC calculated for the standard test conditions (20.1%). This effect is more profound in summer (24.8% for June-August) than winter months (22.1% for December-February). The average photon energy (APE) turned out to reasonably well reflect the overall impact of the DC layer on the energy yields with R2 = 0.96. The primary conclusion is that the impact of spectral converters on PV device performance should be analyzed not only in the standard test conditions as in the real operating conditions the result of spectra converting layer may turn out substantially better, lowering the bar for commercialization and broad application of such layers.
Author Bartosz Fetliński (FEIT / MO)
Bartosz Fetliński,,
- The Institute of Microelectronics and Optoelectronics
, Michał Malinowski (FEIT / MO)
Michał Malinowski,,
- The Institute of Microelectronics and Optoelectronics
Journal seriesSolar Energy, ISSN 0038-092X
Issue year2018
No1 May
Publication size in sheets0.5
Keywords in EnglishPhotovoltaics; Down-conversion; Spectral irradiance; PV system performance
ASJC Classification2500 General Materials Science; 2105 Renewable Energy, Sustainability and the Environment
URL https://www.sciencedirect.com/science/article/pii/S0038092X18302044
ProjectThe Development of Design, Processing and Testing Methods of the Electronic Devices and Materials for Microelectronics and Optoelectronics. Project leader: Szczepański Paweł, , Phone: (48 22) 234 58 70, start date 01-01-2015, planned end date 31-12-2015, end date 31-05-2016, IMiO/2015/STATUT/1, Implemented
WEiTI Działalność statutowa
Languageen angielski
Score (nominal)35
Score sourcejournalList
ScoreMinisterial score = 35.0, 03-08-2020, ArticleFromJournal
Publication indicators Scopus Citations = 1; WoS Citations = 0; GS Citations = 2.0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.791; WoS Impact Factor: 2018 = 4.674 (2) - 2018=4.807 (5)
Citation count*2 (2020-07-26)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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