Two Significant Factors Affecting the Dimensions of the ZnO Nanorods During Chemical Bath Deposition: Precursor Solution Concentration and HMTA Content

Memnune Kardeş; Koray Öztürk

Makale detayları

Two Significant Factors Affecting the Dimensions of the ZnO Nanorods During Chemical Bath Deposition: Precursor Solution Concentration and HMTA Content

Yazarlar:

Memnune Kardeş | Koray Öztürk

Yayıncı:

Sakarya University

Ana Başlıklar:

Material Production Technologies

Dergi:

Sakarya University Journal of Science Vol.27 Issue 4, pp.757-767

Belge Tipi:

Makale

Yayın Tarihi:

8/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001294011

pISSN:

2147-835X

Anahtar kelimeler:

Özet:

 The effects of zinc ion concentration and hexamethylene tetramine HMTA content of the aqueous precursor solution on the aspect ratios of the one-dimensional 1D ZnO nanorods during chemical bath deposition CBD were investigated. The ZnO nanorods were grown on these seeded substrates by the low-temperature CBD method at 95 C for 5 h. In the first part of this investigation the zinc nitrate hexahydrate ZNH to HMTA molar ratio was kept constant at a ratio of 1:1 for each of the CBD solutions prepared with different Zn2 ion concentrations of 0.025, 0.035, 0.050, and 0.075 M. The number densities of the nanorods i.e., number of nanorods per unit area were increased with the increasing concentration. In the second part, the ZNH to HMTA molar ratio was varied to differ from the 1:1 value and, in turn, to obtain the precursor solutions relatively rich in Zn2 or OH-ions. Here, the concentration of the precursor solution was kept constant at 0.05 M. The lateral growth perpendicular to the c-axis of the ZnO nanorods was found to be suppressed with the increasing HMTA content e.g., for the ZNH to HMTA molar ratio of 0.4: 1 due to its capping effect. However, the precursor solution containing an excessive amount of HMTA led to a decrease in the probability of crystal growth, which has been attributed to the OH- ion enrichment.

 The effects of zinc ion concentration and hexamethylene tetramine HMTA content of the aqueous precursor solution on the aspect ratios of the one-dimensional 1D ZnO nanorods during chemical bath deposition CBD were investigated. The ZnO nanorods were grown on these seeded substrates by the low-temperature CBD method at 95 C for 5 h. In the first part of this investigation the zinc nitrate hexahydrate ZNH to HMTA molar ratio was kept constant at a ratio of 1:1 for each of the CBD solutions prepared with different Zn2 ion concentrations of 0.025, 0.035, 0.050, and 0.075 M. The number densities of the nanorods i.e., number of nanorods per unit area were increased with the increasing concentration. In the second part, the ZNH to HMTA molar ratio was varied to differ from the 1:1 value and, in turn, to obtain the precursor solutions relatively rich in Zn2 or OH-ions. Here, the concentration of the precursor solution was kept constant at 0.05 M. The lateral growth perpendicular to the c-axis of the ZnO nanorods was found to be suppressed with the increasing HMTA content e.g., for the ZNH to HMTA molar ratio of 0.4: 1 due to its capping effect. However, the precursor solution containing an excessive amount of HMTA led to a decrease in the probability of crystal growth, which has been attributed to the OH- ion enrichment.

 The effects of zinc ion concentration and hexamethylene tetramine HMTA content of the aqueous precursor solution on the aspect ratios of the one-dimensional 1D ZnO nanorods during chemical bath deposition CBD were investigated. The ZnO nanorods were grown on these seeded substrates by the low-temperature CBD method at 95 C for 5 h. In the first part of this investigation the zinc nitrate hexahydrate ZNH to HMTA molar ratio was kept constant at a ratio of 1:1 for each of the CBD solutions prepared with different Zn2 ion concentrations of 0.025, 0.035, 0.050, and 0.075 M. The number densities of the nanorods i.e., number of nanorods per unit area were increased with the increasing concentration. In the second part, the ZNH to HMTA molar ratio was varied to differ from the 1:1 value and, in turn, to obtain the precursor solutions relatively rich in Zn2 or OH-ions. Here, the concentration of the precursor solution was kept constant at 0.05 M. The lateral growth perpendicular to the c-axis of the ZnO nanorods was found to be suppressed with the increasing HMTA content e.g., for the ZNH to HMTA molar ratio of 0.4: 1 due to its capping effect. However, the precursor solution containing an excessive amount of HMTA led to a decrease in the probability of crystal growth, which has been attributed to the OH- ion enrichment.

 The effects of zinc ion concentration and hexamethylene tetramine HMTA content of the aqueous precursor solution on the aspect ratios of the one-dimensional 1D ZnO nanorods during chemical bath deposition CBD were investigated. The ZnO nanorods were grown on these seeded substrates by the low-temperature CBD method at 95 C for 5 h. In the first part of this investigation the zinc nitrate hexahydrate ZNH to HMTA molar ratio was kept constant at a ratio of 1:1 for each of the CBD solutions prepared with different Zn2 ion concentrations of 0.025, 0.035, 0.050, and 0.075 M. The number densities of the nanorods i.e., number of nanorods per unit area were increased with the increasing concentration. In the second part, the ZNH to HMTA molar ratio was varied to differ from the 1:1 value and, in turn, to obtain the precursor solutions relatively rich in Zn2 or OH-ions. Here, the concentration of the precursor solution was kept constant at 0.05 M. The lateral growth perpendicular to the c-axis of the ZnO nanorods was found to be suppressed with the increasing HMTA content e.g., for the ZNH to HMTA molar ratio of 0.4: 1 due to its capping effect. However, the precursor solution containing an excessive amount of HMTA led to a decrease in the probability of crystal growth, which has been attributed to the OH- ion enrichment.

Makale detayları

Two Significant Factors Affecting the Dimensions of the ZnO Nanorods During Chemical Bath Deposition: Precursor Solution Concentration and HMTA Content

Yazarlar:

Memnune Kardeş | Koray Öztürk

Yayıncı:

Sakarya University

Ana Başlıklar:

Material Production Technologies

Dergi:

Sakarya University Journal of Science Vol.27 Issue 4, pp.757-767

Belge Tipi:

Makale

Yayın Tarihi:

8/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001294011

pISSN:

2147-835X

ZnO nanorods

CBD

HMTA

Aspect ratio

Crystal growthZnO nanorods

CBD

HMTA

Aspect ratio

Crystal growth

Sayı

Makale detayları

Yazarlar: Memnune Kardeş | Koray Öztürk

Yayıncı: Sakarya University

Ana Başlıklar: Material Production Technologies

Dergi: Sakarya University Journal of Science Vol.27 Issue 4, pp.757-767

Belge Tipi: Makale

Yayın Tarihi: 8/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001294011

pISSN: 2147-835X

Sayı

Yazarlar:

Memnune Kardeş | Koray Öztürk

Yayıncı:

Sakarya University

Ana Başlıklar:

Material Production Technologies

Dergi:

Sakarya University Journal of Science Vol.27 Issue 4, pp.757-767

Belge Tipi:

Makale

Yayın Tarihi:

8/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001294011

pISSN:

2147-835X