Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell
In this prelimnary work, the aim was to fabricate a simple tin (II) sulfide (SnS) quantum dot-sensitized solar cell (QDSSC) from aqueous solution. The SnS QDSSCs were characterized by using current-voltage test (I-V test), scanning electron microscopy (SEM), and ultraviolet-visible (UV-Vis) spectros...
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| Format: | Article |
| Language: | English |
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De Gruyter
2019-01-01
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| Series: | Green Processing and Synthesis |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/gps-2019-0012 |
| _version_ | 1819151221031698432 |
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| author | Ngoi Kok Kwong Jun Hieng Kiat |
| author_facet | Ngoi Kok Kwong Jun Hieng Kiat |
| author_sort | Ngoi Kok Kwong |
| collection | DOAJ |
| description | In this prelimnary work, the aim was to fabricate a simple tin (II) sulfide (SnS) quantum dot-sensitized solar cell (QDSSC) from aqueous solution. The SnS QDSSCs were characterized by using current-voltage test (I-V test), scanning electron microscopy (SEM), and ultraviolet-visible (UV-Vis) spectroscopy. SEM results showed the presence of TiO2 and SnS elements in the sample, confirming the successful synthesis of SnS quantum dots (QDs). The overall efficiency of QDSSCs increased when concentration of the precursor solutions, which were aqueous sodium sulfide and tin (II) sulfate decreased from 0.5 M to 0.05 M. On the other hand, for a fixed precursor concentration, the efficiency of QDSSC reduced once an optimal cycle of of successive ionic layer adsorption and reaction (SILAR) was achieved. The bandgap energies of QDs obtained by extrapolating the Tauc plot were used to predict the QDs size. In general, the QD size was bigger for samples prepared from precursor concentration of 0.5 M, and with higher number of SILAR cycle used. The best performance was obtained from sample prepared from 0.05 M precursor concentration with 4 SILAR cycles. |
| first_indexed | 2024-12-22T14:29:57Z |
| format | Article |
| id | doaj.art-7af7fe54b7914863a7ea07014f450a2b |
| institution | Directory Open Access Journal |
| issn | 2191-9550 |
| language | English |
| last_indexed | 2024-12-22T14:29:57Z |
| publishDate | 2019-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj.art-7af7fe54b7914863a7ea07014f450a2b2022-12-21T18:22:46ZengDe GruyterGreen Processing and Synthesis2191-95502019-01-018144345010.1515/gps-2019-0012gps-2019-0012Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cellNgoi Kok Kwong0Jun Hieng Kiat1Department of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Bandar Sg. Long, 43000 Kajang, Kajang, MalaysiaDepartment of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Bandar Sg. Long, 43000 Kajang, Kajang, MalaysiaIn this prelimnary work, the aim was to fabricate a simple tin (II) sulfide (SnS) quantum dot-sensitized solar cell (QDSSC) from aqueous solution. The SnS QDSSCs were characterized by using current-voltage test (I-V test), scanning electron microscopy (SEM), and ultraviolet-visible (UV-Vis) spectroscopy. SEM results showed the presence of TiO2 and SnS elements in the sample, confirming the successful synthesis of SnS quantum dots (QDs). The overall efficiency of QDSSCs increased when concentration of the precursor solutions, which were aqueous sodium sulfide and tin (II) sulfate decreased from 0.5 M to 0.05 M. On the other hand, for a fixed precursor concentration, the efficiency of QDSSC reduced once an optimal cycle of of successive ionic layer adsorption and reaction (SILAR) was achieved. The bandgap energies of QDs obtained by extrapolating the Tauc plot were used to predict the QDs size. In general, the QD size was bigger for samples prepared from precursor concentration of 0.5 M, and with higher number of SILAR cycle used. The best performance was obtained from sample prepared from 0.05 M precursor concentration with 4 SILAR cycles.https://doi.org/10.1515/gps-2019-0012quantum dot-sensitized solar cellsnssilarbandgap |
| spellingShingle | Ngoi Kok Kwong Jun Hieng Kiat Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell Green Processing and Synthesis quantum dot-sensitized solar cell sns silar bandgap |
| title | Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell |
| title_full | Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell |
| title_fullStr | Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell |
| title_full_unstemmed | Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell |
| title_short | Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell |
| title_sort | study of fabrication of fully aqueous solution processed sns quantum dot sensitized solar cell |
| topic | quantum dot-sensitized solar cell sns silar bandgap |
| url | https://doi.org/10.1515/gps-2019-0012 |
| work_keys_str_mv | AT ngoikokkwong studyoffabricationoffullyaqueoussolutionprocessedsnsquantumdotsensitizedsolarcell AT junhiengkiat studyoffabricationoffullyaqueoussolutionprocessedsnsquantumdotsensitizedsolarcell |