Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar Cells
Metal oxide nanoparticles prepared by biological route using green plant parts as a template are eco-friendly as well as yield good results than the conventional methods. This present study focusses on biosynthesis and characterization of TiO2 NPs using root extract of Kniphofia schemperi for dye-se...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2021/6648325 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832555162883850240 |
|---|---|
| author | Eneyew Tilahun Bekele Enyew Amare Zereffa Noto Susanto Gultom Dong-Hau Kuo Bedasa Abdisa Gonfa Fedlu Kedir Sabir |
| author_facet | Eneyew Tilahun Bekele Enyew Amare Zereffa Noto Susanto Gultom Dong-Hau Kuo Bedasa Abdisa Gonfa Fedlu Kedir Sabir |
| author_sort | Eneyew Tilahun Bekele |
| collection | DOAJ |
| description | Metal oxide nanoparticles prepared by biological route using green plant parts as a template are eco-friendly as well as yield good results than the conventional methods. This present study focusses on biosynthesis and characterization of TiO2 NPs using root extract of Kniphofia schemperi for dye-sensitized solar cells. TiO2 NPs were synthesized using 0.25 M titanium tetra butoxide in the presence of root extract of Kniphofia schemperi with the volume ratios. The analysis result revealed that the synthesized TiO2 NPs were thermally stable above 500°C and have spherical morphology, with the average crystalline size of 11.7, 8.3, and 8.6 nm, and band gap energy of 3.35 eV, 3.33 eV, and 3.36 eV, respectively, for the TiO2 NPs prepared at the volume ratios of 2 : 3, 1 : 1, and 3 : 2. Biosynthesized TiO2 NPs were used as photoanode in dye-sensitized solar cells (a device used for converting absorbed light into electricity). Solar cell devices were fabricated using roots of Kniphofia schemperi sensitizer in the presence of TiO2 NPs biosynthesized within (2 : 3, 1 : 1, and 3 : 2) volume ratio, which showed power conversion efficiency of 0.039%, 0.117%, and 1.3%. Incident photon to current conversion efficiency (IPCE) analysis using TiO2 (2 : 3, 1 : 1, and 3 : 2) photoelectrodes showed 6.64%, 2.66%, and 18%. Among the biosynthesized TiO2 different volume ratios, TiO2 (3 : 2) NPs showed relatively maximum solar cell efficiency and IPCE value due to its uniform spherical shape that enables to absorb large dye molecules on its surface, and this intern improves device efficiency. |
| format | Article |
| id | doaj-art-07b338407ab34c3da9fc2c1f9a830336 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-07b338407ab34c3da9fc2c1f9a8303362025-02-03T05:49:27ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2021-01-01202110.1155/2021/66483256648325Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar CellsEneyew Tilahun Bekele0Enyew Amare Zereffa1Noto Susanto Gultom2Dong-Hau Kuo3Bedasa Abdisa Gonfa4Fedlu Kedir Sabir5Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama, EthiopiaDepartment of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama, EthiopiaDepartment of Materials Science and Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Road, Taipei 10607, TaiwanDepartment of Materials Science and Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Road, Taipei 10607, TaiwanDepartment of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama, EthiopiaDepartment of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama, EthiopiaMetal oxide nanoparticles prepared by biological route using green plant parts as a template are eco-friendly as well as yield good results than the conventional methods. This present study focusses on biosynthesis and characterization of TiO2 NPs using root extract of Kniphofia schemperi for dye-sensitized solar cells. TiO2 NPs were synthesized using 0.25 M titanium tetra butoxide in the presence of root extract of Kniphofia schemperi with the volume ratios. The analysis result revealed that the synthesized TiO2 NPs were thermally stable above 500°C and have spherical morphology, with the average crystalline size of 11.7, 8.3, and 8.6 nm, and band gap energy of 3.35 eV, 3.33 eV, and 3.36 eV, respectively, for the TiO2 NPs prepared at the volume ratios of 2 : 3, 1 : 1, and 3 : 2. Biosynthesized TiO2 NPs were used as photoanode in dye-sensitized solar cells (a device used for converting absorbed light into electricity). Solar cell devices were fabricated using roots of Kniphofia schemperi sensitizer in the presence of TiO2 NPs biosynthesized within (2 : 3, 1 : 1, and 3 : 2) volume ratio, which showed power conversion efficiency of 0.039%, 0.117%, and 1.3%. Incident photon to current conversion efficiency (IPCE) analysis using TiO2 (2 : 3, 1 : 1, and 3 : 2) photoelectrodes showed 6.64%, 2.66%, and 18%. Among the biosynthesized TiO2 different volume ratios, TiO2 (3 : 2) NPs showed relatively maximum solar cell efficiency and IPCE value due to its uniform spherical shape that enables to absorb large dye molecules on its surface, and this intern improves device efficiency.http://dx.doi.org/10.1155/2021/6648325 |
| spellingShingle | Eneyew Tilahun Bekele Enyew Amare Zereffa Noto Susanto Gultom Dong-Hau Kuo Bedasa Abdisa Gonfa Fedlu Kedir Sabir Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar Cells International Journal of Photoenergy |
| title | Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar Cells |
| title_full | Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar Cells |
| title_fullStr | Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar Cells |
| title_full_unstemmed | Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar Cells |
| title_short | Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar Cells |
| title_sort | biotemplated synthesis of titanium oxide nanoparticles in the presence of root extract of kniphofia schemperi and its application for dye sensitized solar cells |
| url | http://dx.doi.org/10.1155/2021/6648325 |
| work_keys_str_mv | AT eneyewtilahunbekele biotemplatedsynthesisoftitaniumoxidenanoparticlesinthepresenceofrootextractofkniphofiaschemperianditsapplicationfordyesensitizedsolarcells AT enyewamarezereffa biotemplatedsynthesisoftitaniumoxidenanoparticlesinthepresenceofrootextractofkniphofiaschemperianditsapplicationfordyesensitizedsolarcells AT notosusantogultom biotemplatedsynthesisoftitaniumoxidenanoparticlesinthepresenceofrootextractofkniphofiaschemperianditsapplicationfordyesensitizedsolarcells AT donghaukuo biotemplatedsynthesisoftitaniumoxidenanoparticlesinthepresenceofrootextractofkniphofiaschemperianditsapplicationfordyesensitizedsolarcells AT bedasaabdisagonfa biotemplatedsynthesisoftitaniumoxidenanoparticlesinthepresenceofrootextractofkniphofiaschemperianditsapplicationfordyesensitizedsolarcells AT fedlukedirsabir biotemplatedsynthesisoftitaniumoxidenanoparticlesinthepresenceofrootextractofkniphofiaschemperianditsapplicationfordyesensitizedsolarcells |