Encontrados 4 documentos, a visualizar página 1 de 1
Surface plasmon resonance of sparsely dispersed au nanoparticles in TiO2 photoa...
Samantilleke, A. P.; Vasilevskiy, Mikhail; Rodrigues, N. F. G.; Cerqueira, Fátima; Mari, BernabePlasmonics is an emerging field that makes use of the nanoscale properties of metals, and its application in solar cells has seen a recent surge of interest [1]. Dye-sensitized solar cells (DSSC) were fabricated by incorporating Au NPs into the TiO2 photoanode. The dye absorption is enhanced by the strong localized electric field from localized surface plasmon and the recombination and back reaction of electron...
Nano-ilmenite FeTiO3 : synthesis and characterization
Raghavender, A. T.; Hoa Hong, Nguyen; Lee, Kyu Joon; Jung, Myung-Hwa; Skoko, Z.; Vasilevskiy, Mikhail; Cerqueira, M. F.; Samantilleke, A. P.In general, ilmenite FeTiO3 is synthesized by solid-state reaction at very high pressure and high temperature. Synthesis of FeTiO3 is not an easy task as the Fe2+ ions are not stable. Therefore, it is really challenging to prepare this material. In this work nano-ilmenite FeTiO3 was synthesized by the sol-gel method. Structural, optical and magnetic characterizations were performed. The bandgap of FeTiO3 was de...
Nanoporous alumina templates : anodisation and mechanical characterisation
Samantilleke, A. P.; Carneiro, Joaquim A. O.; Alpuim, P.; Teixeira, Vasco M. P.; Thuy, Tran Thi ThuDue to applications in electronics, optoelectronics, energy storage, photocatalysis, photonics and biosensors/biomaterials, interest in onedimensional nanostructures has grown significantly during the last decade. The use of nanoporous templates as matrices for fabrication of nanostructures is now commonplace in microelectronics technology. Studies on semiconductors and dielectrics have introduced nanoporous an...
Simple way to make Anatase TiO2 films on FTO glass for promising solar cells
Raghavender, A. T.; Samantilleke, A. P.; Sá, Pedro; Almeida, B. G.; Vasilevskiy, Mikhail; Nguyen Hoa HongTiO2 is a wide bandgap semiconductor material used as the photo anode in dye sensitized solar cells (DSSC). The fabrication of TiO2 on conductive glass substrates plays an important role in the solar cell efficiency, since the thickness of the TiO2 coating affects the transmission, photoconductive properties and the efficiency of solar cells. The uncorrected transmission in our fabricated films is as high as 80...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||