Investigation of effect of anti-aggregation agent on the performance of nanostructure dye-sensitized solar cells

• Autorzy: Hosseinnezhad M. , Moradian S. , Gharanjig K.

Identyfikatory

DOI

10.1515/oere-2015-0021

• Języki publikacji: EN

Abstrakty

EN

Dye sensitized solar cells (DSSCs) based on indigo dyes exhibit suitable conversion efficiency. These organic dyes have been undergone for aggregation. Electron transfer process is reduced due to an aggregation of molecular dyes. Therefore, anti-aggregation agent is commonly utilized in fabrication of DSSCs. In the present study, two anti-aggregation agents namely as 3α,7α-dihydroxy-5β-cholanic acid (cheno) and 3α,7α,12α-trihydroxy-5β-cholanic acid (cholic acid) were added to indigo dye solution in DSSCs in order to determine the photovoltaic parameters such as short circuit photocurrent, open circuit voltage and conversion efficiency of each individual dye in the absence and presence of anti-aggregation agents. The results show that the conversion efficiencies are improved with reduced aggregation. Spectrophotometric evaluations of the indigo dyes in solution and on a TiO₂ substrate were carried out in the absence and presence of anti-aggregation agents in order to estimate changes in the status of the dyes in different environments. J-type aggregates on the nano TiO₂ are reduced in the presence of anti-aggregation agents.

Słowa kluczowe

EN

dye sensitized solar cells; sensitizers; indigo dye; anti-aggregation agent; photocurrent-photovoltage curves; conversion efficiencies

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2015
• Tom: Vol. 23, No. 2
• Strony: 126--130
• Opis fizyczny: Bibliogr. 22 poz., tab., wykr.

Twórcy

autor

Hosseinnezhad M.

• Department of Organic Colorants, Institute for Colour Science and Technology, P.O. Box 16656118481, Tehran, Iran

autor

Moradian S.

• Centre of Excellence for Colour Science and Technology, Institute for Colour Science and Technology, P.O. Box 16656118481, Tehran, Iran
• Department of Polymer and Colour Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran

autor

Gharanjig K.

• Department of Organic Colorants, Institute for Colour Science and Technology, P.O. Box 16656118481, Tehran, Iran
• Centre of Excellence for Colour Science and Technology, Institute for Colour Science and Technology, P.O. Box 16656118481, Tehran, Iran

Bibliografia

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