Counter electrodes from polyaniline−carbon nanotube complex/graphene oxide multilayers for dye-sensitized solar cell application

2014 ◽  
Vol 125 ◽  
pp. 510-515 ◽  
Author(s):  
Min Wang ◽  
Qunwei Tang ◽  
Haiyan Chen ◽  
Benlin He
2020 ◽  
Vol 49 (4) ◽  
pp. 315-324
Author(s):  
Azimah Omar ◽  
Muhamad Saipul Fakir ◽  
Khairus Syifa Hamdan ◽  
Nurul Hidayah Rased ◽  
Nasrudin Abd. Rahim

Purpose The purpose of this paper is to investigate the chemical, optical and photovoltaic properties of titanium dioxide/reduced graphene oxide (TiO2/rGO) photoanodes immersed in natural Roselle and synthetic (N719) dyes for dye-sensitized solar cell (DSSC) application. Design/methodology/approach TiO2 mixed with rGO were doctor-bladed on fluorine doped tin oxide (FTO) glass substrate. The chemical and optical properties of TiO2/rGO photoanodes immersed in Roselle and N719 dyes were characterized using Fourier-transformed infrared (FTIR) and ultraviolet–visible (UV–vis) spectroscopies, respectively. The DSSC’s photovoltaic performances were tested using Visiontec Solar I-V tester at standard illumination of AM1.5 and irradiance level of 100 mW/cm2. Findings The presence of anthocyanin dye from Roselle flower was detected at 604 nm and 718 nm. TiO2/rGO+Roselle dye sample revealed the smallest energy gap of 0.17 eV for ease of electron movement from valence band to conduction band. The TiO2/rGO-based DSSC fabricated with Roselle dye had a power conversion efficiency, ƞ of 0.743 per cent higher than TiO2/rGO photoanode sensitized with N719 dye (0.334 per cent). The obtained J-V curves were analyzed by a single-diode model of Lambert W-function and manual optimization to determine the internal electrical parameters of the DSSC. The average and uncertainty values of Jsc and ƞ were evaluated at different Rsh range of 1362 Ω to 32 k Ω. Research limitations/implications Rs values were kept constant during optimization work. Originality/value New ideality factor of TiO2/rGO-based DSSC was re-determined around 0.9995.


2011 ◽  
Vol 46 (10) ◽  
pp. 1604-1609 ◽  
Author(s):  
T. Charinpanitkul ◽  
P. Lorturn ◽  
W. Ratismith ◽  
N. Viriya-empikul ◽  
G. Tumcharern ◽  
...  

2013 ◽  
Vol 53 (24) ◽  
pp. 39-46 ◽  
Author(s):  
N. Vyas ◽  
D. A. Wragg ◽  
C. Charbonneau ◽  
M. Carnie ◽  
T. M. Watson

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