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Improving photochemical properties of Ipomea pescaprae, Imperata cylindrica (L.) Beauv, and Paspalum conjugatum Berg as photosensitizers for dye sensitized solar cells
Prima E.C.a,b, Yuliarto B.a, Suendo V.a, Suyatmana
a Advanced Functional Materials Laboratory, Department of Engineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung (ITB), Bandung, 40132, Indonesia
b International Program on Science Education, Indonesia University of Education, Bandung, 40154, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2014, Springer Science+Business Media New York.This paper reports on the improving photochemical properties of natural dye using acid treatment, coadsorber addition, and dye combination. The natural pigments have been extracted from Ipomea pescaprae, Imperata cylindrica (L.) Beauv, and Paspalum conjugatumBerg containing quercetin 3-O-β-d-glucofuranoside, graminone B, and chlorophyll a. The dyes have been successfully sensitized on TiO2 anatase nanoparticles as photoelectrodes for the dye-sensitized solar cell. The cells were illuminated under 100 mW/cm2 AM 1.5 condition. It is investigated that the acidic treatments have been successfully improving the cell efficiencies of I. pescaprae dye from 0.45 to 0.53 %, I. cylindrica dye from 0.44 to 0.48 %, and P. conjugatum dye from 0.50 to 0.69 %. The acidic treatment leads to broaden the dye spectrum absorption and cell efficiency. Moreover, the addition of coadsorber into I. pescaprae dye is able to improve its cell efficiency from 0.53 to 0.55 % with Jsc of 3.738 mA/cm2, Voc of 0.393 V, and the FF of 0.377. The combination of dyes from I. pescaprae with efficiency of 0.27 % and P. conjugatum with efficiency of 0.55 % could be improved to be 0.76 %. In conclusion, we prove that the acidic treatment, coadsorber addition, and dyes combination play a significant role in improving the photochemical properties of natural dye sensitized solar cell.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Acid treatments,Acidic treatment,Cell efficiency,Dye spectra,Natural pigment,Photo-electrodes,Photochemical properties,TiO2 anatase[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]Acknowledgments This research underlying this paper is partially supported by Research Funding of Ministry of Education and Culture under the scheme of Decentralization Research Program (Program Desentralisasi DIKTI) 2013.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1007/s10854-014-2210-x[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]