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Enhancing the light absorbance of polymer solar cells by introducing pulsed laser-deposited CuIn(0.8)Ga(0.2)Se(2) nanoparticles

Evenly separated crystalline CuIn(0.8)Ga(0.2)Se(2) (CIGS) nanoparticles are deposited on ITO-glass substrate by pulsed laser deposition. Such CIGS layers are introduced between conjugated polymer layers and ITO-glass substrates for enhancing light absorbance of polymer solar cells. The P3HT:PCBM abs...

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Detalles Bibliográficos
Autores principales: Zhao, Yu, Li, Hui, Liu, Xu-Jun, Guan, Lei-Lei, Li, Yan-Li, Sun, Jian, Ying, Zhi-Feng, Wu, Jia-Da, Xu, Ning
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4067071/
https://www.ncbi.nlm.nih.gov/pubmed/24994961
http://dx.doi.org/10.1186/1556-276X-9-308
Descripción
Sumario:Evenly separated crystalline CuIn(0.8)Ga(0.2)Se(2) (CIGS) nanoparticles are deposited on ITO-glass substrate by pulsed laser deposition. Such CIGS layers are introduced between conjugated polymer layers and ITO-glass substrates for enhancing light absorbance of polymer solar cells. The P3HT:PCBM absorbance between 300 and 650 nm is enhanced obviously due to the introduction of CIGS nanoparticles. The current density-voltage curves of a P3HT:PCBM/CIGS solar cell demonstrate that the short-circuit current density is improved from 0.77 to 1.20 mA/cm(2). The photoluminescence spectra show that the excitons in the polymer are obviously quenched, suggesting that the charge transfer between the P3HT:PCBM and CIGS occurred. The results reveal that the CIGS nanoparticles may exhibit the localized surface plasmon resonance effect just as metallic nanostructures. PACS: 61.46. + w; 61.41.e; 81.15.Fg; 81.07.b