Performance Analysis of Mixed Natural Dye and Nanostructured Tio2 based DSSC
A.Ayaz1, D. Sinha2, D. De3

1Abdul Ayaz, Department of Electrical Engineering, Rampurhat Govt. Polytechnique College, Rampurhat, India.
2Dola Sinha* , Department of Electrical Engineering, Dr B. C. Roy Engineering College, Durgapur, India.
3Debasis De, Applied Electronics and Instrumentation Engineering Department, Dr. B. C. Roy Engineering College, Durgapur, India Energy Institute Bangalore, VTU PG Campus, Chikkabalapura, Karnataka.
Manuscript received on April 20, 2020. | Revised Manuscript received on April 29, 2020. | Manuscript published on May 10, 2020. | PP: 453-456 | Volume-9 Issue-7, May 2020. | Retrieval Number: G5327059720/2020©BEIESP | DOI: 10.35940/ijitee.G5327.059720
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Abstract: The performance of the mixed natural dye based DSSC has been evaluated in this paper. The mixture of beet root, spinach and turmeric are used with nanostructured TiO2 are used for the fabrication of DSSC. TiO2 is synthesized by sol-gel technique and considered as semiconductor metal oxide (SMO) to act as photo anode here. Nano wire type of morphology of TiO2 is found from the FESEM image which exhibits unidirectional and uniform electron flow. The XRD study reveals anatase and rutile phases of TiO2 that ensure the stability of synthesized TiO2 . The mixed dye made of beet root, spinach and turmeric shows their congruent characteristics with the broad light absorption spectra, lower diffused reflectance spectra after anchoring with SMO and better I-V characteristics in comparison with the individual one. The mixed dye-based DSSC provides the open-circuit voltage of 0.755V, short circuit current of 2.05mA, voltage and current at maximum power equal to 0.51V and 1.7mA, respectively with the efficiency of 0.867 %, in comparison to the efficiency of the individual dyes 0.305%, 0.266% and 0.473% with beet root, spinach and turmeric, respectively. 
Keywords: DSSC, Sol gel method; Tauc’s plot; Photo sensitizing properties; Diffused reflectance spectra (DRS)
Scope of the Article: Measurement & Performance Analysis