Microwave assisted synthesis of CdS quantum dots in DMSO
Нема приказа
Аутори
Bjelajac, AndjelikaPetrovic, Rada
Pavlović, Vladimir
Ćirković, Jovana
Vukajlovic, Jovana
Janackovic, Djordje
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
There are many research studies investigating the wide range of application of
cadmium sulfide (CdS) nanoparticles. By limiting the size of the nanoparticles to smaller
than Borh radius, the quantization of the energy levels to discrete values causes the
quantum confinement effect. The most remarkable feature of the quantum dots is the
phenomena called multiplication by absorption of a single photon. Quantum dots of CdS
prepared as aqueous sols have been reported to undergo photooxidation. Therefore, it
was a challenge to synthesize CdS quantum dots in dimethyl sulfoxide (DMSO). This
study shows that microwave radiation can affect CdS nanoparticles growth, since DMSO
can act as a source of S2-
ions. The absorption onsets of the synthesized colloids are
determined to be 395, 403 and 470 nm, for non-treated, pre-treated by microwave and
post-treated colloids, respectively. The sizes of the nanoparticles were calculated by the
effective mass model to be 3.01, 3.21 and 4.84 nm ...which was affirmed by transmission
electron microscopy analysis.
Кључне речи:
CdS / quantum dots / optical propertiesИзвор:
Program and the Book of Abstracts/11th Conference for Young Scientists in Ceramics (SM- 2015), 2015, 57-Издавач:
- Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia, Srbija
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Bjelajac, Andjelika AU - Petrovic, Rada AU - Pavlović, Vladimir AU - Ćirković, Jovana AU - Vukajlovic, Jovana AU - Janackovic, Djordje PY - 2015 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2978 AB - There are many research studies investigating the wide range of application of cadmium sulfide (CdS) nanoparticles. By limiting the size of the nanoparticles to smaller than Borh radius, the quantization of the energy levels to discrete values causes the quantum confinement effect. The most remarkable feature of the quantum dots is the phenomena called multiplication by absorption of a single photon. Quantum dots of CdS prepared as aqueous sols have been reported to undergo photooxidation. Therefore, it was a challenge to synthesize CdS quantum dots in dimethyl sulfoxide (DMSO). This study shows that microwave radiation can affect CdS nanoparticles growth, since DMSO can act as a source of S2- ions. The absorption onsets of the synthesized colloids are determined to be 395, 403 and 470 nm, for non-treated, pre-treated by microwave and post-treated colloids, respectively. The sizes of the nanoparticles were calculated by the effective mass model to be 3.01, 3.21 and 4.84 nm which was affirmed by transmission electron microscopy analysis. PB - Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia, Srbija C3 - Program and the Book of Abstracts/11th Conference for Young Scientists in Ceramics (SM- 2015) T1 - Microwave assisted synthesis of CdS quantum dots in DMSO SP - 57 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2978 ER -
@conference{ author = "Bjelajac, Andjelika and Petrovic, Rada and Pavlović, Vladimir and Ćirković, Jovana and Vukajlovic, Jovana and Janackovic, Djordje", year = "2015", abstract = "There are many research studies investigating the wide range of application of cadmium sulfide (CdS) nanoparticles. By limiting the size of the nanoparticles to smaller than Borh radius, the quantization of the energy levels to discrete values causes the quantum confinement effect. The most remarkable feature of the quantum dots is the phenomena called multiplication by absorption of a single photon. Quantum dots of CdS prepared as aqueous sols have been reported to undergo photooxidation. Therefore, it was a challenge to synthesize CdS quantum dots in dimethyl sulfoxide (DMSO). This study shows that microwave radiation can affect CdS nanoparticles growth, since DMSO can act as a source of S2- ions. The absorption onsets of the synthesized colloids are determined to be 395, 403 and 470 nm, for non-treated, pre-treated by microwave and post-treated colloids, respectively. The sizes of the nanoparticles were calculated by the effective mass model to be 3.01, 3.21 and 4.84 nm which was affirmed by transmission electron microscopy analysis.", publisher = "Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia, Srbija", journal = "Program and the Book of Abstracts/11th Conference for Young Scientists in Ceramics (SM- 2015)", title = "Microwave assisted synthesis of CdS quantum dots in DMSO", pages = "57", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2978" }
Bjelajac, A., Petrovic, R., Pavlović, V., Ćirković, J., Vukajlovic, J.,& Janackovic, D.. (2015). Microwave assisted synthesis of CdS quantum dots in DMSO. in Program and the Book of Abstracts/11th Conference for Young Scientists in Ceramics (SM- 2015) Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia, Srbija., 57. https://hdl.handle.net/21.15107/rcub_rimsi_2978
Bjelajac A, Petrovic R, Pavlović V, Ćirković J, Vukajlovic J, Janackovic D. Microwave assisted synthesis of CdS quantum dots in DMSO. in Program and the Book of Abstracts/11th Conference for Young Scientists in Ceramics (SM- 2015). 2015;:57. https://hdl.handle.net/21.15107/rcub_rimsi_2978 .
Bjelajac, Andjelika, Petrovic, Rada, Pavlović, Vladimir, Ćirković, Jovana, Vukajlovic, Jovana, Janackovic, Djordje, "Microwave assisted synthesis of CdS quantum dots in DMSO" in Program and the Book of Abstracts/11th Conference for Young Scientists in Ceramics (SM- 2015) (2015):57, https://hdl.handle.net/21.15107/rcub_rimsi_2978 .