ZnO Optoelectronics

 

Researchers: Jianlin Liu, Faxian Xiu, Leela Mandalapu, Zheng Yang, Jae-hong Lim, Sheng Chu, Lin Li, Jieying Kong, Zheng Zuo, Jianze Zhao, Guoping Wang, Jian Huang, Monzur Morshed, Fan Gao, Mohammad Suja, Sunayna Bashar, Longxing Su, Wenhao Shi

Collaborators: Dave Look (Wright State University), Leonid Chernyak (UCF), Zhanghai Chen (Fudan University), Paul Yu (UCSD), Roger Lake (UCR)

 

Motivation of Research:

ZnO is a direct, wideband gap material that shall emit or absorb light in ultraviolet region. The intriguing exciton property drives effort for room-temperature excitonic lasers. With Mg or Cd, ZnO-based alloys can have wider or narrower bandgaps. ZnO is also an excellent transparent material…However, p-type doing has not been reliable enough for this material to thrive yet.

 

Available Publications:

Incomplete Overview: With plasma-assisted molecular beam epitaxy, we began to develop doping of ZnO thin films toward p-type. Earlier, we demonstrated that Sb and P can be used to obtain p-type films by MBE. We then achieved some hetero-junction and homojunction diode devices, such as photodetectors, LEDs, and lasers based on Sb-doped p-type ZnO thin films. Some of contributions to the field of ZnO semiconductor lasers include:

·         First demonstration of ZnO Schottky diode Whispering Gallery Mode lasers (J176)

·         First demonstration of ZnO metal-semiconductor-metal random lasers (J161, J179, J184)

·         First demonstration of ZnO Schottky diode random lasers (J164)

·         First demonstration of electrically pumped nitrogen doped p-type ZnO nanowire homojunction random lasers (J155)

·         First demonstration of electrically pumped ZnO nanowire waveguide lasers (J131)

·         First demonstration of ZnO homojunction random lasers (J106)

Please refer to the following existing papers for details, but the research in this area is still necessary to achieve high-efficiency optoelectronic devices.

 

J184. “Electrically driven plasmon-exciton coupled random lasing in ZnO metal-semiconductor-metal devices”

          M. Suja, B. Debnath, S. B. Bashar, L. X. Su, R. Laker, and J. L. Liu

          Applied Surface Science 439, 525(2018) view pdf

 

J182. “Visible-Blind UV Photodetector Based on Single-Walled Carbon Nanotube Thin Film/ZnO

          Vertical Heterostructures”

          G. Li, M. Suja, M. Chen, E. Bekyarova, R. C. Haddon, J. L. Liu, and M. E. Itkis

         ACS Appl. Mater. Interfaces 9, 37094(2017) view pdf

 

J179. “Electrically driven deep ultraviolet MgZnO lasers at room temperature”

          M. Suja, S. B. Bashar, B. Debnath, L. X. Su, W. H. Shi, R. Lake, and J. L. Liu

          Scientific Reports 7, 2677(2017) view pdf

 

J176. “Electrically Pumped Whispering Gallery Mode Lasing from Au/ZnO Microwire Schottky Junction”

         Sunayna B. Bashar, Chunxia Wu, Mohammad Suja, Hao Tian, Wenhao Shi, and Jianlin Liu

         Advanced Optical Materials 4, 2063(2016) view pdf

 

J175. “Enhanced random lasing from distributed Bragg reflector assisted Au-ZnO nanowire Schottky diode”

         S. B. Bashar, M. Suja, W. H. Shi, and J. L. Liu

         Appl. Phys. Lett. 109, 192101(2016) view pdf

 

J171. “Ultraviolet electroluminescence from Au-ZnO nanowire Schottky type light-emitting diodes”

          F. Gao, D. K. Zhang, J. Y. Wang, H. B. Sun, Y. Yin, Y. Sheng, S. C. Yan, B. Yan, C. H. Sui,

         Y. D. Zheng, Y. Shi, and J. L. Liu

         Appl. Phys. Lett. 108, 261103 (2016) view pdf

 

J170. “An Sb-doped p-type ZnO nanowire based random laser diode”

          S. B. Bashar, M. Suja, M. Morshed, F. Gao and J. L. Liu

          Nanotechnology 27, 065204(2016) view pdf

 

J164. “Electrically pumped random lasing based on an Au-ZnO nanowire Schottky junction”

          F. Gao, M. M. Morshed, S. B. Bashar, Y. D. Zheng, Y. Shi, and Jianlin Liu

          Nanoscale 7, 9505(2015) view pdf

 

J163. “Realization of Cu-doped p-type ZnO thin films by molecular beam epitaxy”

          M. Suja, S. B. Bashar, M. M. Morshed, and J. L. Liu

          ACS Applied Materials and Interfaces 7, 8894(2015) view pdf

 

J162. “Ultraviolet random lasing from Mg0.12Zn0.88O:N/ZnO:Ga single heterostructure diode”

          M. M. Morshed, Z. Zuo, J. Huang, and J. Liu

          Appl. Phys. A, 118, 817(2015) view pdf

 

J161. “Ultraviolet random lasing from asymmetrically contacted MgZnO metal-semiconductor-metal Device”

          M. M. Morshed, M. Suja, Z. Zuo, and J. L. Liu

          Appl. Phys. Lett. 105, 211107(2014) view pdf

 

J160. “Photoluminescence study of nitrogen doped p-type MgxZn1-xO nano crystalline thin film grown by

          plasma assisted molecular beam epitaxy”

          M. M. Morshed, Z. Zuo, J. Huang, J. Zheng, Q. Lin, X. Yan, and J.L. Liu

         Appl. Phys. A 117, 1467(2014), DOI 10.1007/s00339-014-8576-z view pdf

 

J159. “Distributed Bragg reflector assisted low-threshold ZnO nanowire random laser diode”

         J. Huang, M. Morshed, Z. Zuo, and J. L. Liu

         Appl. Phys. Lett. 104, 131107(2014) view pdf

 

J155. “ZnO p-n homojunction random laser diode based on nitrogen-doped p-type nanowires”

          J. Huang, S. Chu, J. Y. Kong, L. Zhang, C. M. Schwarz, G. P. Wang, L. Chernyak, Z. H. Chen, and J. L. Liu

         Advanced Optical Materials 1(2), 179(2013) view pdf

 

J152. “Use of distributed Bragg reflectors to enhance Fabry–Pérot lasing in vertically aligned ZnO nanowires”

          J. Y. Kong, S. Chu, J. Huang, M. Olmedo, W. H. Zhou, L. Zhang, Z. H. Chen, and J. L. Liu

          Appl. Phys. A 110, 23(2013) view pdf

 

J144. “Noble metal nanodisks epitaxially formed on ZnO nanorods and their effect on photoluminescence”

          Sheng Chu, Jingjian Ren, Dong Yan, Jian Huang, and Jianlin Liu

          Appl. Phys. Lett. 101, 043122(2012) view pdf

 

J143. “Low-threshold ZnO random lasing in a homojunction diode with embedded double heterostructure”

          Jieying Kong, Sheng Chu, Zheng Zuo, Jingjian Ren, Mario Olmedo, Jianlin Liu

          Applied Physics A 107, 971(2012) view pdf

 

J135. “Impact of forward bias injection on minority carrier transport in p-type ZnO nanowires”

        C. Schwarz, E. Flitsiyan, L. Chernyak, V. Casian, R. Schneck, Z. Dashevsky, S. Chu, and J. L. Liu

          J. Appl. Phys. 110, 056108(2011) view pdf

 

J131. “Electrically pumped waveguide lasing from ZnO nanowires”

          Sheng Chu, Guoping Wang, Weihang Zhou, Yuqing Lin, Leonid Chernyak, Jianze Zhao, Jieying Kong, Lin Li,

          Jingjian Ren and Jianlin Liu

          Nature Nanotechnology 6, 506(2011). DOI: 10.1038/NNANO.2011.97 view pdf

 

J130. “Enhanced output power using MgZnO/ZnO/MgZnO double heterostructure in ZnO homojunction light emitting diode”

          Sheng Chu, Jianze Zhao, Zheng Zuo, Jieying Kong, Lin Li, and Jianlin Liu

          J. App. Phys. 109, 123110(2011) view pdf

 

J129. “Synthesis and characterization of Ag-doped p-type ZnO nanowires”

          Guoping Wang, Sheng Chu, Ning Zhan, Huimei Zhou, Jianlin Liu

          Appl. Phys. A 103, 951(2011) view pdf

 

J123. “ZnO homojunction photodiodes based on Sb-doped p-type nanowire array and n-type film for ultraviolet detection”

         Guoping Wang, Sheng Chu, Ning Zhan, Yuqing Lin, Leonid Chernyak, and Jianlin Liu

         Appl. Phys. Lett. 98, 041107(2011) view pdf

 

J122. “Minority carrier transport in p-ZnO nanowires”

         Y. Lin, M. Shatkhin, E. Flitsiyan, L. Chernyak, Z. Dashevsky, S. Chu, and J. L. Liu

         J. Appl. Phys. 109, 016107(2011) view pdf

 

J120. “Homobuffer thickness effect on the background electron carrier concentration of epitaxial ZnO thin films”

          Z. Yang, H. M. Zhou, W. V. Chen, L. Li, J. Z. Zhao, P. K. L. Yu, and J. L. Liu

          J. Appl. Phys. 108, 066101(2010) view pdf

 

J117. Thermal stability of CdZnO thin films grown by molecular-beam epitaxy”

          L. Li, Z. Yang, Z. Zuo, J.H. Lim, and J.L. Liu

          Applied Surface Science 256, 4734(2010)

 

J116. ZnO:Sb/ZnO:Ga Light Emitting Diode on c-Plane Sapphire by Molecular Beam Epitaxy”

         Zheng Yang, Sheng Chu, Winnie V. Chen, Lin Li, Jieying Kong, Jingjian Ren, Paul K. L. Yu, and Jianlin Liu

        Applied Physics Express 3, 032101(2010)

 

C61. Study of rapid thermal annealing effect on CdZnO thin films grown on Si substrate”

        L. Li, Z. Yang, Z. Zuo, J. Y. Kong, and J. L. Liu

        North American MBE conference 2009, Princeton University, American Vacuum Society

        J. Vac. Sci. Tech. B 28(3), C3D13, 1071(2010), May/June, 2010

 

C60. Ultraviolet light emissions in MgZnO/ZnO double heterojunction diodes by molecular beam epitaxy”

        Jieying Kong, Lin Li, Zheng Yang, and Jianlin Liu

        North American MBE conference 2009, Princeton University, American Vacuum Society

        J. Vac. Sci. Tech. B 28(3), C3D10, 1071(2010), May/June, 2010

 

C59. Donor-acceptor-pair photoluminescence in Ga-doped ZnO thin films grown by plasma-assisted molecular beam epitaxy”

        Zheng Yang and Jianlin Liu

        North American MBE conference 2009, Princeton University, American Vacuum Society

        J. Vac. Sci. Tech. B 28(3), C3D6, 1071(2010), May/June, 2010

 

C58. Cyan electroluminescence from n-ZnO/i-CdZnO/p-Si heterojunction diodes”

        Lin Li, Zheng Yang and Jianlin Liu

        MRS Fall 2009, Boston, USA, Mater. Res. Soc. Symp. Proc. Vol. 1201, 1201-H01-09, 2010

 

J114. “Temperature-dependent photoluminescence of CdZnO thin films grown by molecular-beam epitaxy”

          Z. Yang, L. Li, Z. Zuo, J.L. Liu

          Journal of Crystal Growth 312, 68(2009)

 

J113. “Blue electroluminescence from ZnO based heterojunction diodes with CdZnO active layers”

          L. Li, Z. Yang, J. Y. Kong, and J. L. Liu

          Appl. Phys. Lett. 95, 232117(2009)

 

J109. “Ga-related photoluminescence lines in Ga-doped ZnO grown by plasma-assisted molecular-beam epitaxy”

         Z. Yang, D. C. Look, and J. L. Liu

         Appl. Phys. Lett. 94, 072101(2009)

 

J107. “Study of plasma power effect on ZnO thin films growth using electron cyclotron resonance plasma-assisted molecular-beam epitacy

         Z. Yang, J.-H. Lim, S. Chu, Z. Zuo, and J. L. Liu

         Applied Surface Science 255, 3375(2008)

 

J106. “Electrically pumped ZnO ultraviolet diode lasers on Si”

          Sheng Chu, Mario Olmedo, Zheng Yang, Jieying Kong, and Jianlin Liu

          Appl. Phys. Lett. 93, 181106(2008)

 

J105. Dominant ultraviolet light emissions in packed ZnO columnar homojunction diodes”

         Jieying Kong, Sheng Chu, Mario Olmedo, Lin Li, Zheng Yang, and Jianlin Liu

         Appl. Phys. Lett. 93, 132113(2008)

 

J103. “Generation of nitrogen acceptors in ZnO using pulse thermal processing”

        Jun Xu, Ronald Ott, Adrian S. Sabau, Zhengwei Pan, Faxian Xiu, Jianlin Liu, Jean-Marie Erie, and David P. Norton

          Appl. Phys. Lett. 92, 151112(2008)

 

J102. “Sb-doped p-ZnO/Ga-doped n-ZnO homojunction ultraviolet light emitting diodes”

           S. Chu, J. H. Lim, L. J. Mandalapu, Z. Yang, L. Li and J. L. Liu

          Appl. Phys. Lett. 92, 152103(2008)

 

J101. “Ultraviolet emission from Sb-doped p-type ZnO-based heterojunction light emitting diodes”

         L. J. Mandalapu, Z. Yang, S. Chu, and J. L. Liu

         Appl. Phys. Lett. 92, 122101(2008)     

 

J100. Electron beam induced current profiling of ZnO p-n homojunctions”

        L. Chernyak, C. Schwarz, E. S. Flitsiyan, S. Chu, J. L. Liu, and K. Gartsman

        Appl. Phys. Lett. 92, 102106(2008)

 

J96. “Response to “Comment on “p-type behavior from Sb-doped ZnO heterojunction diodes”

        L. J. Mandalapu, and J. L. Liu

        Appl. Phys. Lett. 91, 136102(2007)

 

J95. “Al/Ti contacts to Sb-doped p-ZnO

       L. J. Mandalapu, F. X. Xiu, Z. Yang, and J. L. Liu

       J. Applied Physics 102, 023716(2007)

 

J94. “Influence of electron injection on the temporal response of ZnO homo-junction diodes”

      O. Lopatiuk-Tirpak, G. Nootz, E. Flitsiyan, L. Chernyak, L. J. Mandalapu, Z. Yang, J. L. Liu,

       K. Gartsman, and A. Osinsky

       Appl. Phys. Lett. 042115(2007)  

 

J93. “Ultraviolet photoconductive detectors based on Ga-doped ZnO by molecular beam epitaxy”

      L. J. Mandalapu, F. X. Xiu, Z. Yang, and J. L. Liu

      Solid-state Electronics 51, 1014(2007)

 

J92. “Low-resistivity Au/Ni contacts to Sb-doped p-type ZnO

       L. J. Mandalapu, Z. Yang, and J. L. Liu

       Appl. Phys. Lett. 90, 252103(2007)

 

J90. Response to “Comment on ‘Photoluminescence study of Sb-doped p-type ZnO films by molecular beam epitaxy’””

       F. X. Xiu, and J. L. Liu

       Appl. Phys. Lett. 90, 116103(2007)

 

C50. “p-type ZnO by Sb doping for PN-junction photodetectors”

        J. L. Liu, F. X. Xiu, L. J. Mandalapu, and Z. Yang

        Photonics West 2006, San Jose, USA, Jan 21-26, 2006

 

J87.  “Influence of the electron injection on the photoresponse of ZnO homojunction diode”

       O. Lopatiuk-Tirpak, L. Chernyak, L. Mandalapu, Z. Yang, J. L. Liu, K. Gartsman, Y. Feldman,

       Z. Dashvsky

      Appl. Phys. Lett. 89, 142114(2006)

 

J86. “Study of minority carrier diffusion length increase in p-type ZnO:Sb

      O. Lopatiuk-Tirpak, L. Chernyak, F. X. Xiu, J. L. Liu, S. Tan, F. Ren, S. Pearton, K. Gartsman,

      Y. Feldman, A. Osinsky, P. Chow

      J. Appl. Phys. 100, 086101(2006)

 

J84. “Bi-induced acceptor states in ZnO by molecular beam epitaxy”

        F. X. Xiu, L. J. Mandalapu, Z. Yang, J. L. Liu, G. F. Liu, and J. A. Yarmoff

        Appl. Phys. Lett. 89, 052103(2006)

 

J82. “Carrier concentration dependence of acceptor binding energy in p-type ZnO

        O. Lopatiuk-Tirpak, W. V. Schoenfeld, L. Chernyak, F. X. Xiu, J. L. Liu, S. Jang, F. Ren, S. J. Pearton,

        A. Osinsky and P. Chow

        Appl. Phys. Lett. 88, 202110(2006)

 

J81. “Donor and acceptor competitions in phosphorus-doped ZnO

        F. X. Xiu, Z. Yang, L. J. Mandalapu, and J. L. Liu

        Appl. Phys. Lett. 88, 152116(2006)

 

J79. “Photoluminescence investigation of the carrier recombination processes in ZnO quantum dots and nanocrystals

       Vladimir A. Fonoberov, Khan A. Alim, Alexander A. Balandin, Faxian Xiu and Jianlin Liu

        Phys. Rev. B 73, 165317(2006)

 

J78. “p-type behavior from Sb-doped ZnO heterojunction photodiode”

        L. J. Mandalapu, F. X. Xiu, Z. Yang, D. T. Zhao, and J. L. Liu

        Appl. Phys. Lett. 88, 112108(2006)

 

J76. “Homojunction photodiodes based on Sb-doped p-type ZnO for ultraviolet detection”

        L. J. Mandalapu, Z. Yang, F. X. Xiu, D. T. Zhao, and J. L. Liu

        Appl. Phys. Lett. 88, 092103(2006)

 

J74. “p-type ZnO films with solid-source phosphorus doping using molecular beam epitaxy”

        F. X. Xiu, Z. Yang, L.J. Mandalapu, J. L. Liu, and W. Beyermann

        Appl. Phys. Lett. 88, 052106(2006)

 

J71. ZnO growth on Si with low-temperature ZnO buffer layers by ECR-assisted MBE”

        Faxian Xiu, Zheng Yang, Dengtao Zhao, Jianlin Liu, Khan A. Alim, Alexander A. Balandin,

        Mikhail E. Itkis, and Robert C. Haddon

        Journal of Crystal Growth 286, 61(2006)

 

C48. “Characteristics of phosphorus doped p-type ZnO by MBE

        F. X. Xiu, Z. Yang, L. J. Mandalapu, and J. L. Liu

        MRS Fall 2005, Boston, USA, November 27-December 1, 2005

 

C47. “ZnO growth on Si with low-temperature ZnO buffer layers by ECR-assisted MBE

        F. X. Xiu, Z. Yang, D. T. Zhao, J. L. Liu, K. Alim, A. A. Balandin, M. Itkis, and R. Haddon

        EMC 2005, Santa Barbara, California, June 22-24, 2005

 

J70. “Photoluminescence study of Sb-doped p-type ZnO films by molecular-beam epitaxy”

        F. X. Xiu, Z. Yang, L. J. Mandalapu, D. T. Zhao, and J. L. Liu

        Appl. Phys. Lett. 87, 252102(2005)

 

J67. “High-mobility Sb-doped P-type ZnO by Molecular Beam Epitaxy”

        F. X. Xiu, Z. Yang, L. J. Mandalapu, D. T. Zhao, J. L. Liu, and W. P. Beyermann

        Appl. Phys. Lett. 87, 152101(2005)