In-doped Ga2O3 nanobelt based photodetector with high sensitivity and wide-range photoresponse

Doping is an efficient way to tune the electrical and photoelectrical performances of one-dimensional semiconductors which have potential application as active materials in high performance nanoscale devices. Ga2O3 is one the most promising 1D semiconducting systems. However, controlled doping of Ga2O3 toward higher photoelectrical performances in Ga2O3-based photodetectors remains problematic. Herein high-quality In-doped Ga2O3 nanobelts are fabricated through a facile and effective thermal evaporation process. Their morphology and structure are systematically characterized. Indium has successfully been doped into the Ga2O3 nanobelts based on the data obtained. The In-doped Ga2O3 nanobelt-based photodetector has shown a higher sensitivity (9.99 × 104%), responsivity (5.47 × 102 A W−1), quantum efficiency (2.72 × 105%) and less rise/decay time (1/0.6 s), i.e. much better figures compared with not only the undoped Ga2O3 nanobelt/film but also other reported doped photodetectors. In addition, the above photodetector has a wider range photoresponse. In doping has led to significant improvements in the values of key parameters of the Ga2O3-based photodetector, beneficial for the fabrication of high-performance photodetectors.

[1]  Manijeh Razeghi,et al.  Kinetics of photoconductivity in n‐type GaN photodetector , 1995 .

[2]  Tianyou Zhai,et al.  ZnO and ZnS Nanostructures: Ultraviolet-Light Emitters, Lasers, and Sensors , 2009 .

[3]  Lide Zhang,et al.  A facile method for effective doping of Tb3+ into ZnO nanocrystals. , 2009, Chemical communications.

[4]  G. Shen,et al.  Formation of crystalline SrAl(2)O(4) nanotubes by a roll-up and post-annealing approach. , 2006, Angewandte Chemie.

[5]  Roberto Orlando,et al.  First-principles study of the structural, electronic, and optical properties of Ga 2 O 3 in its monoclinic and hexagonal phases , 2006 .

[6]  H. Meixner,et al.  Selective gas detection with high-temperature operated metal oxides using catalytic filters , 2000 .

[7]  L. Tong,et al.  Fabrication and characterization of β-Ga2O3 optical nanowires , 2005 .

[8]  Tianyou Zhai,et al.  Fabrication of high-quality In2Se3 nanowire arrays toward high-performance visible-light photodetectors. , 2010, ACS nano.

[9]  Yoshinori Hatanaka,et al.  Ga2O3 thin film for oxygen sensor at high temperature , 2001 .

[10]  Hui Wu,et al.  Photoswitches and Memories Assembled by Electrospinning Aluminum‐Doped Zinc Oxide Single Nanowires , 2007 .

[11]  Lianmao Peng,et al.  Quantitative Analysis of Current–Voltage Characteristics of Semiconducting Nanowires: Decoupling of Contact Effects , 2007 .

[12]  Takayoshi Oshima,et al.  Vertical Solar-Blind Deep-Ultraviolet Schottky Photodetectors Based on β-Ga2O3 Substrates , 2008 .

[13]  Didier Gourier,et al.  ORIGIN OF THE BLUE LUMINESCENCE OF β-Ga2O3 , 1998 .

[14]  Y. Bando,et al.  Solvothermal Synthesis, Cathodoluminescence, and Field‐Emission Properties of Pure and N‐Doped ZnO Nanobullets , 2009 .

[15]  Feihong Jiang,et al.  Catalytic growth of Ga2O3 nanowires by physical evaporation and their photoluminescence properties , 2003 .

[16]  Y. Bando,et al.  Quasi-aligned Ga2O3 nanowires grown on brass wire meshes and their electrical and field-emission properties , 2009 .

[17]  Younan Xia,et al.  One‐Dimensional Nanostructures: Synthesis, Characterization, and Applications , 2003 .

[18]  Shui-Tong Lee,et al.  Tuning electrical and photoelectrical properties of CdSe nanowires via indium doping. , 2009, Small.

[19]  Hao Gong,et al.  Hierarchical assembly of ZnO nanostructures on SnO(2) backbone nanowires: low-temperature hydrothermal preparation and optical properties. , 2009, ACS nano.

[20]  Haibin Li,et al.  Preparation and photoluminescence properties of Eu-doped Ga2O3 nanorods , 2008 .

[21]  Y. Chen,et al.  Photocurrent enhancement of SnO2 nanowires through Au-nanoparticles decoration. , 2008, Optics express.

[22]  Thomas Richter,et al.  Size-dependent photoconductivity in MBE-grown GaN-nanowires. , 2005, Nano letters.

[23]  Jun Xu,et al.  Studies of magnetic interactions in Mn-doped β-Ga2O3 from first-principles calculations , 2008 .

[24]  Alois Lugstein,et al.  Deep-ultraviolet solar-blind photoconductivity of individual gallium oxide nanobelts. , 2011, Nanoscale.

[25]  Zhong Lin Wang,et al.  Gigantic enhancement in response and reset time of ZnO UV nanosensor by utilizing Schottky contact and surface functionalization. , 2009, Applied physics letters.

[26]  E. Muñoz,et al.  Photoconductive gain modelling of GaN photodetectors , 1998 .

[27]  Z. Hiroi,et al.  Photoinduced conductivity in tin dioxide thin films , 2009 .

[28]  Y. Bando,et al.  Characterization, cathodoluminescence and field-emission properties of morphology-tunable CdS micro/nanostructures , 2009, 2010 3rd International Nanoelectronics Conference (INEC).

[29]  Lide Zhang,et al.  Synthesis of Rare Earth Ions-Doped ZnO Nanostructures with Efficient Host-Guest Energy Transfer , 2009 .

[30]  J. Y. Zhang,et al.  Individual β-Ga2O3 nanowires as solar-blind photodetectors , 2006 .

[31]  Y. Bando,et al.  Morphology-tunable In2Se3 nanostructures with enhanced electrical and photoelectrical performances via sulfur doping , 2010 .

[32]  C. Cao,et al.  Synthesis and photoluminescence of gallium oxide ultra-long nanowires and thin nanosheets , 2005 .

[33]  Takayoshi Oshima,et al.  Flame Detection by a β-Ga2O3-Based Sensor , 2009 .

[34]  Patrick L. Feng,et al.  Achieving fast oxygen response in individual β-Ga2O3 nanowires by ultraviolet illumination , 2006 .

[35]  Shui-Tong Lee,et al.  Tunable p-type conductivity and transport properties of AlN nanowires via Mg doping. , 2011, ACS nano.

[36]  Yoshinori Hatanaka,et al.  Ga2O3 thin films for high-temperature gas sensors , 1999 .

[37]  N. Kouklin.  Cu‐Doped ZnO Nanowires for Efficient and Multispectral Photodetection Applications , 2008 .

[38]  Jiali Zhai,et al.  Anomalous photoconductivity of cobalt-doped zinc oxide nanobelts in air , 2008 .

[39]  Chongwu Zhou,et al.  Vapor-solid growth of one-dimensional layer-structured gallium sulfide nanostructures. , 2009, ACS nano.

[40]  Shinji Nakagomi,et al.  Sol-gel prepared β-Ga2O3 thin films for ultraviolet photodetectors , 2007 .

[41]  Lianmao Peng,et al.  Current-voltage characteristics and parameter retrieval of semiconducting nanowires , 2006 .

[42]  Lisheng Wang,et al.  Large-scale growth of In2O3 nanowires and their optical properties , 2004 .

[43]  Yue Zhang,et al.  Self-powered ultraviolet photodetector based on a single Sb-doped ZnO nanobelt , 2010 .

[44]  Lin-Bao Luo,et al.  Photoconductivity of a Single Small‐Molecule Organic Nanowire , 2008 .

[45]  Sanjay Mathur,et al.  Toward a Systematic Understanding of Photodetectors Based on Individual Metal Oxide Nanowires , 2008 .

[46]  K. Nakajima,et al.  Characterization of transparent and conducting Sn-doped β-Ga2O3 single crystal after annealing , 2008 .

[47]  S. T. Lee,et al.  p-type conduction in nitrogen-doped ZnS nanoribbons , 2008 .