TY  - JOUR
A1  - Zaine, S.N.A.
A1  - Mohamed, N.M.
A1  - Khatani, M.
A1  - Samsudin, A.E.
A1  - Shahid, M.U.
JF  - Materials Today Communications
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85061112224&doi=10.1016%2fj.mtcomm.2019.01.012&partnerID=40&md5=08d67f049cd969c6deca2b7007e1bd05
VL  - 19
Y1  - 2019///
N2  - Improving the capability to capture photon radiation by the photoelectrode film is one of the promising efforts in developing high performance dye-sensitized solar cell (DSC) through enhancing the light harvesting efficiency by the incorporation of light scattering centre. The scattering centre serves to extend the optical path length and improve the long-wavelength response of the DSC. This study aims to develop an optimum structure of micron-size SiO 2 core and TiO 2 nanoshell structure as light scattering centre for the photoelectrode film of DSC. MATLAB simulation of extinction efficiency based on Mie scattering theory estimated that the optimum size of light scatterer scattering size is in the range of 150â??250 nm with shell thickness of about 10â??45 nm. Integration of 15 SiO 2 -TiO 2 core-shell (STCS) into the upper layer of double layers printed photoelectrode resulted in the highest short circuit current. Although the photoelectrode film embedded with STCS structure seems to have a significant reduction in the amount of anchored dye due to its low surface area, but its IPCE analysis shows better photocurrent response especially in the wavelength range of 400â??650 nm. The enhancement is attributed to the effective light scattering of the STCS structure which is capable of extending the travel distance of the incidence photon thus increasing the amount of photon captured by the sensitized dye molecules. Besides, the embedded STCS structures also help in increasing the recombination resistance, reducing rate of electron recombination, hence improving the electron lifetime. © 2019 Elsevier Ltd
ID  - scholars11571
KW  - Brillouin scattering; Efficiency; Light extinction; MATLAB; Photons; Shells (structures); Silica; Solar cells; Structural optimization; Titanium dioxide
KW  -  Core shell; Core shell structure; Electron recombinations; Extinction efficiency; Mie scattering; Mie scattering theory; Photocurrent response; Scattering efficiency
KW  -  Dye-sensitized solar cells
EP  - 229
PB  - Elsevier Ltd
SN  - 23524928
N1  - cited By 11
SP  - 220
TI  - Improving the light scattering efficiency of photoelectrode dye-sensitized solar cell through optimization of core-shell structure
AV  - none
ER  -