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Research Papers

Temperature and Irradiance Dependence of a Dye Sensitized Solar Cell With Acetonitrile Based Electrolyte

[+] Author and Article Information
Edwin Peng

Mechanical Engineering Department,  Cockrell School of Engineering, The University of Texas at Austin, Austin, TX 78712berberoglu@mail.utexas.edu

Halil Berberoğlu1

Mechanical Engineering Department,  Cockrell School of Engineering, The University of Texas at Austin, Austin, TX 78712berberoglu@mail.utexas.edu

1

Corresponding author.

J. Sol. Energy Eng 134(1), 011011 (Nov 29, 2011) (7 pages) doi:10.1115/1.4005357 History: Received August 23, 2011; Revised October 17, 2011; Published November 29, 2011; Online November 29, 2011

Performance characteristics of an acetonitrile electrolyte based dye-sensitized solar cell were measured experimentally as functions of temperature (from 5 to 50 °C) and irradiance (from 500 to 1500 W m−2 ). The results indicated two thermal regimes of operation characterized by diffusion and recombination limitation. It was shown that in the diffusion dominated regime the photoconversion efficiency was not a strong function of temperature whereas it decreased significantly with increasing temperature in the recombination dominated regime. Also, it was shown that the recombination rate was not affected significantly by increase in irradiance resulting in an overall larger temperature dependence of cell performance at larger irradiances.

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Figures

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Figure 1

SEM image of the nanocrystalline structure of the sintered TiO2 film

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Figure 2

Schematic view of the (a) top and (b) side of fabricated DSSCs

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Figure 3

Schematic of the temperature controlled photovoltaic cell polarization curve measurement system

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Figure 4

Comparison of IV curve obtained using the polarization curve measurement setup with NREL calibration data

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Figure 5

Short circuit current density as a function of (a) temperature and (b) irradiance

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Figure 6

Open circuit voltage as a function of (a) temperature and (b) irradiance

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Figure 7

The slope mV in Eq. 11 as a function of temperature

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Figure 8

(a) The effective series resistance and (b) fill factor as functions of temperature for all irradiances

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Figure 9

Photoconversion efficiency as functions of temperature from 5 to 50°C at three irradiances 500, 1000, and 1500 W m−2

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