Lanthanide-based downshifting layers tested in a solar car race

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abstract

The mismatch between the AM1.5G spectrum and the photovoltaic (PV) cells absorption is one of the most limiting factors for PV performance. To overcome this constraint through the enhancement of solar energy harvesting, luminescent downshifting (LDS) layers are very promising to shape the incident sunlight and, thus, we report here the use of Tb3+ and Eu3+-doped organic-inorganic hybrid materials as LDS layers on Si PV cells. Electrical measurements on the PV cell, done before and after the deposition of the LDS layers, confirm the positive effect of the coatings on the cell's performance in the UV spectral region. The maximum delivered power and the maximum absolute external quantum efficiency increased 14% and 27%, respectively. Moreover, a solar powered car race was organized in which the small vehicle containing the coated PV cells presented a relative increase of 9% in the velocity, when compared to that with the uncoated one.

keywords

ORGANICALLY MODIFIED SILICATES; SALICYLIC-ACID; TERBIUM COMPLEXES; CELL EFFICIENCY; PERFORMANCE; CONCENTRATORS; FLUORESCENCE; IMPROVEMENT; COATINGS; EUROPIUM

subject category

Optics

authors

Correia, SFH; Bastos, ARN; Fu, LS; Carlos, LD; Andre, PS; Ferreira, RAS

our authors

foto Luís Carlos

Luís Carlos

Full professor
foto Maria Rute de Amorim e Sá Ferreira André

Maria Rute de Amorim e Sá Ferreira André

Full professor
foto Sandra Filipa Henriques Correia

Sandra Filipa Henriques Correia

Researcher

Groups

G1 - Porous Materials and Nanosystems
G2 - Photonic, Electronic and Magnetic Materials

Projects

CICECO - Aveiro Institute of Materials (UID/CTM/50011/2019)

High-Performance Plastic Fiber Luminescent Solar Concentrators For Flexible Waveguiding Photovoltaics (SOLARFLEX)

SusPhotoSolutions - Soluções Fotovoltaicas Sustentáveis (SUSPHOTOSOLUTIONS)

Díodos emissores de luz (LEDs) branca, inovadores, sintonizáveis e sustentáveis (WINLEDs)

Developing Efficient Heating-Sensing Single Nanoplatforms For Intracellular Imaging And Controlled Local Hyperthermia (NanoHeatControl)

acknowledgements

This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, (UID/CTM/50011/2019), Instituto de Telecomunicacoes (UID/EEA/50008/2019), Solar-Flex (CENTRO-01-0145-FEDER-030186), and SusPhotoSolutions (CENTRO-01-0145-FEDER-000005) financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership through European Regional Development Fund (ERDF) in the frame of Operational Competitiveness and Internationalization Programme (POCI). L.S.F. and A. R. N. B. thank WINLEDs (POCI-01-0145-FEDER-030351) and NanoHeatControl (POCI-01-0145-FEDER-031469), respectively. Joaquim Almeida from Escola Secundaria de Oliveira do Bairro, Portugal is acknowledged for providing the photo finish images.

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Publication Details

type
Journal Article
year
2019
journal
OPTO-ELECTRONIC ADVANCES
volume
2
article number
UNSP 190006
publisher
CHINESE ACAD SCI, INST OPTICS & ELECTRONICS, ED OFF OPTO-ELECTRONIC ADV
isbn
2096-4579
issue
6
digital object identifier
10.29026/oea.2019.190006
web of science article identifier
WOS:000526119900002

Citations

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