The Effect of MgO on the Enhancement of the Efficiency in Solid-State Dye Sensitized Photocells Fabricated with SnO2and CuI

Autor:	Takayuki Kitamura, Rohan Senadeera, Kirthi Tennakone, Yuji Wada, Shozo Yanagida, Seigo Ito, Susira Perera
Rok vydání:	2003
Předmět:	Photocurrent business.industry Open-circuit voltage chemistry.chemical_element General Chemistry Photoelectric effect Nanocrystalline material Cathode Anode Ruthenium law.invention chemistry law Optoelectronics business Short circuit
Zdroj:	Bulletin of the Chemical Society of Japan. 76:659-662
ISSN:	1348-0634 0009-2673
DOI:	10.1246/bcsj.76.659
Popis:	Solid-state dye-sensitized photo cells were fabricated with nanocrystalline SnO2 covered with a thin layer of MgO as the anode and the hole conductor CuI as the cathode. While the cell fabricated with SnO2/Ruthenium bipyridyl dye/CuI delivered almost no photocurrent with very low photovoltage, the cell SnO2 (MgO)/Ruthenium bipyridyl dye/CuI delivered a short circuit photocurrent of ∼2.5 mA cm−2 with an open circuit voltage of ∼500 mV. Enhancement in the photocurrent and the voltages was found when the percentage of MgO to SnO2 was around 4 wt%. This is due to the formation of a thin energy barrier, which suppresses the recombination of photoelectrons.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::82b3585207d9f5204cf0576fb157dab2 https://doi.org/10.1246/bcsj.76.659 Zobrazit plný text záznamu