Improving scattering layer through mixture of nanoporous spheres and nanoparticles in ZnO-based dye-sensitized solar cells

A scattering layer is utilized by mixing nanoporous spheres and nanoparticles in ZnO-based dye-sensitized solar cells. Hundred-nanometer-sized ZnO spheres consisting of approximately 35-nm-sized nanoparticles provide not only effective light scattering but also a large surface area. Furthermore, ZnO...

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Detalles Bibliográficos
Autores principales: Kim, Chohui, Choi, Hongsik, Kim, Jae Ik, Lee, Sangheon, Kim, Jinhyun, Lee, Woojin, Hwang, Taehyun, Kang, Suji, Moon, Taeho, Park, Byungwoo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2014
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4062895/
https://www.ncbi.nlm.nih.gov/pubmed/24982606
http://dx.doi.org/10.1186/1556-276X-9-295
Descripción
Sumario:A scattering layer is utilized by mixing nanoporous spheres and nanoparticles in ZnO-based dye-sensitized solar cells. Hundred-nanometer-sized ZnO spheres consisting of approximately 35-nm-sized nanoparticles provide not only effective light scattering but also a large surface area. Furthermore, ZnO nanoparticles are added to the scattering layer to facilitate charge transport and increase the surface area as filling up large voids. The mixed scattering layer of nanoparticles and nanoporous spheres on top of the nanoparticle-based electrode (bilayer geometry) improves solar cell efficiency by enhancing both the short-circuit current (J(sc)) and fill factor (FF), compared to the layer consisting of only nanoparticles or nanoporous spheres.

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