Influence of particle size and morphology of ZnO powders on their optical properties
2012
Аутори
Stanković, AnaStojanović, Zoran S.
Veselinović, Ljiljana M.
Abazović, Nadica
Škapin, Srečo Davor
Marković, Smilja
Uskoković, Dragan
Остала ауторства
Grbović-Novaković, JasminaIgnjatović, Nenad L.
Конференцијски прилог
Метаподаци
Приказ свих података о документуАпстракт
In this work we present details of different synthesis procedures for preparation of ZnO powders and a possibility to create various particles morphology and average size; from micrometer rods to nanometer spherical particles. We studied two synthesis methods, low temperature hydrothermal processing (HT) and ultrasound processing (US). The morphology and average particle size of the ZnO particles were modified by adjusting the mole ratio of [Zn2+]/[OH] in the reactants solution. Agglomeration of the particles was prevented using a polyvinyl pyrrolidone (PVP) as a capping agent. The synthesized powders were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (FESEM) and UV-Vis - diffusion reflection spectroscopy (UV-Vis DRS). Based on the results of the scanning electron microscopy we proposed a possible growth mechanism of the ZnO particles depending on the mole ratio of [Zn2+]/[OH]. Also, we considered the influence of particle size and morphology on the opti...cal properties of the prepared powders. The observed results sowed that the size and morphology of ZnO particles greatly affect the absorption of visible light (%) and the shift of the energy gap (eV).
Кључне речи:
ZnO / particle size / particle morphology / X-ray diffraction / FESEM / UV-Vis DRSИзвор:
Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts, 2012, 60-60Издавач:
- Belgrade : Serbian Ceramic Society
Финансирање / пројекти:
- Молекуларно дизајнирање наночестица контролисаних морфолошких и физичко-хемијских карактеристика и функционалних материјала на њиховој основи (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45004)
Колекције
Институција/група
VinčaTY - CONF AU - Stanković, Ana AU - Stojanović, Zoran S. AU - Veselinović, Ljiljana M. AU - Abazović, Nadica AU - Škapin, Srečo Davor AU - Marković, Smilja AU - Uskoković, Dragan PY - 2012 UR - http://dais.sanu.ac.rs/123456789/529 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7471 AB - In this work we present details of different synthesis procedures for preparation of ZnO powders and a possibility to create various particles morphology and average size; from micrometer rods to nanometer spherical particles. We studied two synthesis methods, low temperature hydrothermal processing (HT) and ultrasound processing (US). The morphology and average particle size of the ZnO particles were modified by adjusting the mole ratio of [Zn2+]/[OH] in the reactants solution. Agglomeration of the particles was prevented using a polyvinyl pyrrolidone (PVP) as a capping agent. The synthesized powders were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (FESEM) and UV-Vis - diffusion reflection spectroscopy (UV-Vis DRS). Based on the results of the scanning electron microscopy we proposed a possible growth mechanism of the ZnO particles depending on the mole ratio of [Zn2+]/[OH]. Also, we considered the influence of particle size and morphology on the optical properties of the prepared powders. The observed results sowed that the size and morphology of ZnO particles greatly affect the absorption of visible light (%) and the shift of the energy gap (eV). PB - Belgrade : Serbian Ceramic Society C3 - Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts T1 - Influence of particle size and morphology of ZnO powders on their optical properties SP - 60 EP - 60 UR - https://hdl.handle.net/21.15107/rcub_vinar_7471 ER -
@conference{ author = "Stanković, Ana and Stojanović, Zoran S. and Veselinović, Ljiljana M. and Abazović, Nadica and Škapin, Srečo Davor and Marković, Smilja and Uskoković, Dragan", year = "2012", abstract = "In this work we present details of different synthesis procedures for preparation of ZnO powders and a possibility to create various particles morphology and average size; from micrometer rods to nanometer spherical particles. We studied two synthesis methods, low temperature hydrothermal processing (HT) and ultrasound processing (US). The morphology and average particle size of the ZnO particles were modified by adjusting the mole ratio of [Zn2+]/[OH] in the reactants solution. Agglomeration of the particles was prevented using a polyvinyl pyrrolidone (PVP) as a capping agent. The synthesized powders were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (FESEM) and UV-Vis - diffusion reflection spectroscopy (UV-Vis DRS). Based on the results of the scanning electron microscopy we proposed a possible growth mechanism of the ZnO particles depending on the mole ratio of [Zn2+]/[OH]. Also, we considered the influence of particle size and morphology on the optical properties of the prepared powders. The observed results sowed that the size and morphology of ZnO particles greatly affect the absorption of visible light (%) and the shift of the energy gap (eV).", publisher = "Belgrade : Serbian Ceramic Society", journal = "Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts", title = "Influence of particle size and morphology of ZnO powders on their optical properties", pages = "60-60", url = "https://hdl.handle.net/21.15107/rcub_vinar_7471" }
Stanković, A., Stojanović, Z. S., Veselinović, L. M., Abazović, N., Škapin, S. D., Marković, S.,& Uskoković, D.. (2012). Influence of particle size and morphology of ZnO powders on their optical properties. in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts Belgrade : Serbian Ceramic Society., 60-60. https://hdl.handle.net/21.15107/rcub_vinar_7471
Stanković A, Stojanović ZS, Veselinović LM, Abazović N, Škapin SD, Marković S, Uskoković D. Influence of particle size and morphology of ZnO powders on their optical properties. in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts. 2012;:60-60. https://hdl.handle.net/21.15107/rcub_vinar_7471 .
Stanković, Ana, Stojanović, Zoran S., Veselinović, Ljiljana M., Abazović, Nadica, Škapin, Srečo Davor, Marković, Smilja, Uskoković, Dragan, "Influence of particle size and morphology of ZnO powders on their optical properties" in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts (2012):60-60, https://hdl.handle.net/21.15107/rcub_vinar_7471 .