Sol-gel synthesis and characterization of wide band gap p-type nanocrystalline CuBO2

被引：25

作者：

Santra, S. ^{[1
]}

Das, N. S. ^{[1
]}

Chattopadhyay, K. K. ^{[1
,2
]}

机构：

[1] Jadavpur Univ, Dept Phys, Thin Film & Nanosci Lab, Kolkata 700032, India

[2] Jadavpur Univ, Sch Mat Sci & Nanotechnol, Kolkata 700032, India

来源：

MATERIALS LETTERS | 2013年 / 92卷

关键词：

CuBO2; Nanocrystalline materials; Sol-gel preparation; HRTEM; XPS; TRANSPARENT OXIDE SEMICONDUCTORS; FILMS;

D O I：

10.1016/j.matlet.2012.10.094

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Development of p-type transparent conducting oxides is very important for oxide based transparent electronics. Here we report recently proposed novel copper based delafossite CuBO2 nanocrystalline powder synthesis by a cost-effective novel sol-gel route. The particle sizes were varied by simply changing the pH of the precursor sols. Structural characterization of the as prepared samples was performed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM) which confirmed good crystallinity and correct phase formation. Morphological studies were performed by field emission scanning electron microscope. X-ray photoelectron spectroscopy (XPS) studies confirmed the presence of constituent elements with appropriate valence states for CuBO2. The optical band gap measured by UV-vis-NIR spectrophotometry was found similar to 3.6 eV indicating transparency in the visible region. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：198 / 201

页数：4

共 19 条

[1] Recent developments in the emerging field of crystalline p-type transparent conducting oxide thin films [J].

Banerjee, AN ;

Chattopadhyay, KK .

PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS, 2005, 50 (1-3) :52-105

[2] Effect of excess oxygen on the electrical properties of transparent p-type conducting CuAlO2+x thin films [J].

Banerjee, AN ;

Ghosh, CK ;

Chattopadhyay, KK .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2005, 89 (01) :75-83

[3] Synthesis and characterization of p-type transparent conducting CuAlO2 thin film by DC sputtering [J].

Banerjee, AN ;

Kundoo, S ;

Chattopadhyay, KK .

THIN SOLID FILMS, 2003, 440 (1-2) :5-10

[4] Preparation of p-type transparent conducting CuAlO2 thin films by reactive DC sputtering [J].

Banerjee, AN ;

Maity, R ;

Chattopadhyay, KK .

MATERIALS LETTERS, 2004, 58 (1-2) :10-13

[5] Recent progress in transparent oxide semiconductors: Materials and device application [J].

Hosono, Hideo .

THIN SOLID FILMS, 2007, 515 (15) :6000-6014

[6] Transport and defect mechanisms in cuprous delafossites.: 1.: Comparison of hydrothermal and standard solid-state synthesis in CuAlO2 [J].

Ingram, BJ ;

González, GB ;

Mason, TO ;

Shahriari, DY ;

Barnabe, A ;

Ko, DG ;

Poeppelmeier, KR .

CHEMISTRY OF MATERIALS, 2004, 16 (26) :5616-5622

[7] CuO nanostructures on copper foil by a simple wet chemical route at room temperature [J].

Jana, S. ;

Das, S. ;

Das, N. S. ;

Chattopadhyay, K. K. .

MATERIALS RESEARCH BULLETIN, 2010, 45 (06) :693-698

[8] Device applications of transparent oxide semiconductors: Excitonic blue LED and transparent flexible TFT [J].

Kamiya, Toshio ;

Hiramatsu, Hidenori ;

Nomura, Kenji ;

Hosono, Hideo .

JOURNAL OF ELECTROCERAMICS, 2006, 17 (2-4) :267-275

[9] P-type electrical conduction in transparent thin films of CuAlO2 [J].

Kawazoe, H ;

Yasukawa, M ;

Hyodo, H ;

Kurita, M ;

Yanagi, H ;

Hosono, H .

NATURE, 1997, 389 (6654) :939-942

[10] Strong excitonic effects in CuAlO2 delafossite transparent conductive oxides [J].

Laskowski, Robert ;

Christensen, Niels Egede ;

Blaha, Peter ;

Palanivel, Balan .

PHYSICAL REVIEW B, 2009, 79 (16)

← 1 2 →