Dye Sensitized Solar Cells Using Nanostructured Thin Films of Titanium Dioxide

Autor:	Gregory K. Kiema, Michael J. Brett, Martin O. Jensen, Douglas A. Gish
Rok vydání:	2004
Předmět:	Materials science business.industry Substrate (electronics) Crystal structure Electron beam physical vapor deposition Amorphous solid chemistry.chemical_compound Dye-sensitized solar cell chemistry Titanium dioxide Electrode Optoelectronics Thin film business
Zdroj:	MRS Proceedings. 836
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-836-l5.13
Popis:	Dye sensitized solar cells (DSSCs) were fabricated using porous thin films of TiO2. These films were deposited by electron beam evaporation and an advanced substrate motion technique called PhiSweep. PhiSweep, an extension of glancing angle deposition (GLAD), allows for greater control over the surface area of nanostructured thin films than is possible with traditional GLAD. The as-deposited films were amorphous, so the films were annealed to improve their crystal structure. The films were sensitized with a photoactive dye and implemented into a DSSC configuration as the electron collecting electrode. It was expected that the higher surface area of the films produced using the PhiSweep method would improve the cell performance compared with cells made using traditional GLAD films of TiO2. However, the performance of the cells prepared using PhiSweep films was likely hindered by higher internal resistance of the films compared to the films prepared by traditional GLAD. The highest photoelectric conversion efficiency of the dye sensitized solar cells produced using the PhiSweep method was 1.5%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::77cb9ee0c28564f8853a1744032a9450 https://doi.org/10.1557/proc-836-l5.13 Zobrazit plný text záznamu Full text from SpringerLink