Publication Type:

Journal Article

Source:

Advanced Materials Research-Mems, Nano and Smart Systems, Trans Tech Publications, Volume 403, p.4304–4310 (2012)

Keywords:

Bulk heterojunction, Cyclic Voltammetry (CV), Exciton, Ideality Factor, Mobility

Abstract:

In bulk heterojunction solar cells, the donor and acceptor materials are intimately blended throughout the bulk, so that the excitons generated will reach the interface within their lifetime. In this work, Rosebengal (RB) is used as the donor material and nanocrystalline Titanium dioxide (nc TiO2) as the acceptor material. Devices with device structure ITO/RB:TiO2/Ag are prepared and their optical and electrical properties are compared at different temperatures. Optical absorption spectroscopic analysis shows that the absorption of Rose bengal ranges from 650-800 nm corresponding to a band gap of 1.98 eV. Cyclic voltametric analysis, and photo voltaic properties are analysed. Using simulation, the dark current parameters such as ideality factor (n), mobility (µ) potential barrier (φb) and carrier concentration are extracted and tabulated.

Notes:

cited By (since 1996)0; Conference of org.apache.xalan.xsltc.dom.DOMAdapter@3e5c002e ; Conference Date: org.apache.xalan.xsltc.dom.DOMAdapter@a0febfe Through org.apache.xalan.xsltc.dom.DOMAdapter@1b4e75db; Conference Code:87709

Cite this Research Publication

C. O. Sreekala, Saneesh, P. F., Sreelatha, K. S., Kishnashree, A., and Roy, M. S., “Organic Bulk Heterojunction Solar Cell Based on Rosebengal: ncTiO2 and Parameter Extraction by Simulation”, Advanced Materials Research-Mems, Nano and Smart Systems, vol. 403, pp. 4304–4310, 2012.