Influence of particle size of TiO2 powder on the energy conversion efficiency of a dye-sensitized solar cell

No Thumbnail Available

Date

2013

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Research Projects

Organizational Units

Thumbnail Image
Organizational Unit
Metallurgical and Materials Engineering
(2004)
The main fields of operation for Metallurgical and Materials Engineering are production of engineering materials, defining and improving their features, as well as developing new materials to meet the expectations at every aspect of life and the users from these aspects. Founded in 2004 and graduated its 10th-semester alumni in 2018, our Department also obtained MÜDEK accreditation in the latter year. Offering the opportunity to hold an internationally valid diploma through the accreditation in question, our Department has highly qualified and experienced Academic Staff. Many of the courses offered at our Department are supported with various practice sessions, and internship studies in summer. This way, we help our students become better-equipped engineers for their future professional lives. With the Cooperative Education curriculum that entered into effect in 2019, students may volunteer to work at contracted companies for a period of six months with no extensions to their period of study.
Thumbnail Image
Organizational Unit
English Translation and Interpretation
(2001)
Since 2001, our Department has offered education at an extent that matches the similar Departments of European Universities, with a program that involves theoretical and practical courses within the frameworks of translation and interpretation. The goals that we aim our students to reach involve the utilization of knowledge, behaviors and equipment, interpersonal operation in interpretation, the management of the process of production, expertise in language skills with respect to fields and general culture, and access to information. Our students have no difficulty in being hired upon graduation, having gained an awareness regarding the expectations and the conditions of the professional life through our strong cooperation with the national and the international sector. With French and Russian courses offered for 4 years, our students steal the spotlight in the market, having obtained a C-Language Certificate. Our graduates are employed as freelance interpreters, institution interpreters, regulators as multi-layered language experts, terminology experts, subtitle experts and web localization experts.

Journal Issue

Abstract

Dye-sensitized solar cells (DSSCs) have been fabricated using a TiO2 paste composed of mixtures of 25 nm and 250 nm TiO2 particles at various ratios. A maximum energy conversion efficiency of 6.7% has been achieved using the DSSC, based on a TiO2 layer composed of 40 wt% 25 nm and 60 wt% 250 nm TiO2 particles. The short-circuit current density, open-circuit voltage, and filling factor of the cell were 12.95 mA, 0.82 V, and 0.63, respectively. The overall performance of the DSSCs based on TiO2 layers composed using a mixture of two different sized particles is much better than that of either only 25 nm or only 250 nm TiO2 particles. It is recognized that adding the larger particles to the small particles in the TiO2 paste increases the dye absorption and light scattering effects of DSSC, resulting in a higher short-circuit current density and improved energy conversion efficiency. © (2013) Trans Tech Publications, Switzerland.

Description

Keywords

Conversion efficiency, Dye-sensitized solar cells, Nano-sized TiO<sub>2</sub>

Turkish CoHE Thesis Center URL

Citation

0

WoS Q

Scopus Q

Source

Advanced Materials Research -- 2012 International Conference on Advances in Materials Science and Engineering, AMSE 2012 -- 9 December 2012 through 10 December 2012 -- Seoul -- 95488

Volume

650

Issue

Start Page

39

End Page

43

URI

https://doi.org/10.4028/www.scientific.net/AMR.650.39
 https://hdl.handle.net/20.500.14411/3725

Collections

Scopus