Enhanced Photovoltaic Performances of Dye-Sensitized Solar Cells by Co-Sensitization of Benzothiadiazole and Squaraine-Based Dyes

Ashraful Islam; Md Akhtaruzzaman; Towhid H. Chowdhury; Chuanjian Qin; Liyuan Han; Idriss M. Bedja; Romain Stalder; Kirk S. Schanze; John R. Reynolds

doi:10.1021/acsami.5b11134

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Enhanced Photovoltaic Performances of Dye-Sensitized Solar Cells by Co-Sensitization of Benzothiadiazole and Squaraine-Based Dyes

Journal article

Peer reviewed

Enhanced Photovoltaic Performances of Dye-Sensitized Solar Cells by Co-Sensitization of Benzothiadiazole and Squaraine-Based Dyes

Ashraful Islam, Md Akhtaruzzaman, Towhid H. Chowdhury, Chuanjian Qin, Liyuan Han, Idriss M. Bedja, Romain Stalder, Kirk S. Schanze and John R. Reynolds

ACS applied materials & interfaces, Vol.8(7), pp.4616-4623

24/02/2016

DOI: https://doi.org/10.1021/acsami.5b11134

PMID: 26812212

Abstract

Materials Science

Materials Science, Multidisciplinary

Nanoscience & Nanotechnology

Science & Technology

Science & Technology - Other Topics

Technology

Dye-sensitized solar cells (DSSCs) based on a donor-acceptor-donor oligothienylene dye containing benzothiadiazole (T4BTD-A) were cosensitized with dyes containing cis-configured squaraine rings (HSQ3 and HSQ4). The cosensitized dyes showed incident monochromatic photon-to-current conversion efficiency (IPCE) greater than 70% in the 300-850 nm wavelength region. The individual overall conversion efficiencies of the sensitizers T4BTD-A, HSQ3, and HSQ4 were 6.4%, 4.8%, and 5.8%, respectively. Improved power conversion efficiencies of 7.0% and 7.7% were observed when T4BTD-A was cosensitized 140000 with HSQ3 and HSQ4, respectively, thanks to a significant increase in current density (J(SC)) for the cosensitized DSSCs. Intensity-modulated photovoltage spectroscopy results showed a longer lifetime for cosensitized T4BTD-A+HSQ3 and T4BTD-A+HSQ4 compared to that of HSQ3 and HSQ4, respectively.

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Title: Enhanced Photovoltaic Performances of Dye-Sensitized Solar Cells by Co-Sensitization of Benzothiadiazole and Squaraine-Based Dyes
Creators - without role: Ashraful Islam - National Institute for Materials Science
Md Akhtaruzzaman - National University of Malaysia
Towhid H. Chowdhury - Univ Kebangsaan Malaysia, Solar Energy Res Inst, Bangi 43600, Selangor Darul, Malaysia
Chuanjian Qin - Natl Inst Mat Sci, Photovolta Mat Unit, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
Liyuan Han - Natl Inst Mat Sci, Photovolta Mat Unit, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
Idriss M. Bedja - King Saud University
Romain Stalder - University of Florida
Kirk S. Schanze - University of Florida
John R. Reynolds - Georgia Institute of Technology
Publication Details: ACS applied materials & interfaces, Vol.8(7), pp.4616-4623
Publisher: Amer Chemical Soc
Number of pages: 8
Grant note: 03-01-02 SF1149 / Ministry of Science, Technology, and Innovation (MOSTI), Malaysia; Ministry of Energy, Science, Technology, Environment and Climate Change (MESTECC), Malaysia FRGS/1/2014/TK06/UKM/02/3 / Fundamental Research Grant Scheme (FRGS) of the Ministry Of Higher Education, Malaysia (MOHE) 26288113 / JSPS KAKENHI; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science; Grants-in-Aid for Scientific Research (KAKENHI)
Identifiers: 9949910108331
Academic Unit: King Saud University
Language: English
Resource Type: Journal article