Random laser action in ZnO nanorod arrays embedded in ZnO epilayers

Yu, S.F.; Yuen, Clement; Lau, S.P.; Park, W.I.; Gyu-Chul Yi
April 2004
Applied Physics Letters;4/26/2004, Vol. 84 Issue 17, p3241
Academic Journal
Random laser action with coherent feedback has been observed in ZnO nanorod arrays embedded in ZnO epilayers. The sample was fabricated by depositing a MgO buffer layer and followed by a layer of ZnO thin film onto a vertically well-aligned ZnO nanorod arrays grown on sapphire substrate. Under 355 nm optical excitation at room temperature, sharp lasing peaks emit at around 390 nm with a linewidth less than 0.4 nm has been observed in all directions. In addition, the dependence of the lasing threshold intensity on the excitation area is shown in good agreement with the random laser theory. Hence, it is demonstrated that random laser action can also be supported in ZnO nanorod arrays. © 2004 American Institute of Physics.


Related Articles

  • Large area, rapid growth of two-dimensional ZnO nanosheets and their field emission performances. Kok Chung Chin; Chee Kok Poh; Ghee Lee Chong; Jianyi Lin; Chorng Ha Ur Sow; Wee, Andrew Thye Shen // Applied Physics A: Materials Science & Processing;Mar2008, Vol. 90 Issue 4, p623 

    We demonstrate an improved and rapid method to synthesize uniform two-dimensional ZnO nanosheets at low temperature. These nanosheets can be prepared within an hour. The compositions and morphologies of the nanosheets produced were characterized by SEM, XRD, Raman and photoluminescence analysis....

  • Synthesis of nano ZnO thin film on Al foil by rf glow discharge plasma and its effect on E. coli and P. aeruginosa. Panigrahi, Jagannath; Nayak, Bijan; Behera, Debadhyan; Subudhi, Umakanta; Acharya, Bhabani // Applied Physics A: Materials Science & Processing;Sep2012, Vol. 108 Issue 3, p577 

    Nano ZnO thin films were deposited on thin Al foils by a rf glow discharge plasma method in which sublimed zinc acetate vapor (precursor) reacted with oxygen plasma inside a low-pressure reactor. The films were microstructurally characterized using XRD, TEM, FESEM, optical reflectance and...

  • Zinc oxide films prepared by sol-gel spin coating technique. Kamaruddin, Sharul; Chan, Kah-Yoong; Yow, Ho-Kwang; Zainizan Sahdan, Mohd; Saim, Hashim; Knipp, Dietmar // Applied Physics A: Materials Science & Processing;Jul2011, Vol. 104 Issue 1, p263 

    Zinc oxide (ZnO) thin films and micro- and nanostructures are very promising candidates for novel applications in emerging thin-film transistors, solar cells, sensors and optoelectronic devices. In this paper, a low-cost sol-gel spin coating technique was used to fabricate ZnO films on glass...

  • Study of temporal current stability and fluctuations of field emitted electrons from ZnO nanostructure films. Uppireddi, Kishore; Boqian Yang; Peter Xian Feng; Morell, Gerardo // Applied Physics Letters;12/14/2009, Vol. 95 Issue 24, p242103 

    Stable field emission currents and low fluctuations are important feasibility requirements for the application of materials in field emission devices and displays, more than the low turn on fields that are generally considered. The current stability and current fluctuations of field emitted...

  • Preparation and characterization of nanostructured ZnO thin films for photoelectrochemical splitting of water. Gupta, Monika; Sharma, Vidhika; Shrivastava, Jaya; Solanki, Anjana; Singh, A. P.; Satsangi, V. R.; Dass, S.; Rohit Shrivastav // Bulletin of Materials Science;2009, Vol. 32 Issue 1, p23 

    Nanostructured zinc oxide thin films (ZnO) were prepared on conducting glass support (SnO2: F overlayer) via sol-gel starting from colloidal solution of zinc acetate 2-hydrate in ethanol and 2-methoxy ethanol. Films were obtained by spin coating at 1500 rpm under room conditions (temperature,...

  • Preparation and Luminescence Properties of Rare Earth Doped Nanostructured Zinc Oxide Thin Films by Sol Gel Technique. Aziz, Madzlan; Otoi, Sunati // AIP Conference Proceedings;6/1/2009, Vol. 1136 Issue 1, p207 

    Zinc oxide is a semiconductor cosidered promising for optoelectronic and solar cell applications. The wide bandgap nature of the zinc oxide has been a limitation in producing devices. Doping has been considered as one of the ways to reduce the band gap. In the present studies rare earth ions in...

  • Room temperature magneto-optics of nanostructured ZnO:Mn thin film grown by spray pyrolysis. Ebrahimizadeh Abrishami, M.; Hosseini, S. // Journal of Materials Science: Materials in Electronics;Jan2013, Vol. 24 Issue 1, p64 

    Undoped ZnO and ZnO:Mn thin films with different amounts of Mn concentration (5, 10 and 15 mol%) were grown on glass substrates by spray pyrolysis technique. X-ray diffraction patterns showed that the undoped ZnO thin film exhibited wurtzite structure preferably oriented in c-axis direction and...

  • Mn doped nanostucture ZnO thin film for photo sensor and gas sensor application. Mahajan, Sandip V.; Upadhye, Deepak S.; Shaikh, Shahid U.; Birajadar, Ravikiran B.; Siddiqui, Farha Y.; Ghule, Anil V.; Sharma, Ramphal // AIP Conference Proceedings;Feb2013, Vol. 1512 Issue 1, p652 

    Mn doped nanostructure ZnO thin film prepared by soft chemically route method. ZnO thin films were deposited on glass substrate by successive ionic layer adsorption and reaction technique (SILAR). After deposit ZnO thin film dipped in MnSO4 solution for 1 min. The optical properties as...

  • Substrate temperature and background pressure effects on nanostructured zinc oxide thin films for thermoelectric applications. Low Pei Ling; Heng Meng Khen; Tan Kwan Chu; Kumari, Devaraj Nisha; Yap Seong Shan; Ong Boon Hoong; Tou Teck Yong // International Journal of Nanoelectronics & Materials;2015, Vol. 8 Issue 1, p7 

    Zinc oxide (ZnO) thin films were grown on glass substrate by pulsed laser deposition (PLD) at different substrate temperature ranging from room temperature (RT) to 300°C and various oxygen background pressures ranging from 14 mTorr to 140 mTorr, respectively. The structural, surface...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics