the National Natural Science Foundation of China(51872187;11774241;12074263;21805194);the Natural Science Foundation of Guangdong Province(2021A1515012013);the Fundamental Research Project of Shenzhen(JCYJ20180508163404043;JCYJ2018030507182248925)
CHEN Zi-yi,ZHANG Wei-liang,RONG Xi-ming,et al.Electrode Preparation of Solar Blind UV Detector Based on Polycrystalline Diamond Films[J].Chinese Journal of Luminescence,2022,43(12):1974-1982.
CHEN Zi-yi,ZHANG Wei-liang,RONG Xi-ming,et al.Electrode Preparation of Solar Blind UV Detector Based on Polycrystalline Diamond Films[J].Chinese Journal of Luminescence,2022,43(12):1974-1982. DOI: 10.37188/CJL.20220279.
Electrode Preparation of Solar Blind UV Detector Based on Polycrystalline Diamond Films增强出版
A metal-semiconductor-metal(MSM) structure solar blind UV detector was constructed by preparing interdigital Au electrode on polycrystalline diamond films grown by DC plasma jet chemical vapor deposition (DC-PJCVD). The effects of different photolithography processes on the performance of the diamond detector were studied, and the results show that the performance of the device prepared by lift-off photolithography is significantly better than that prepared by wet procedure photolithography. The photocurrent of the device is increased by 4.4 times, the light-dark current ratio is increased by 6.8 times, and the responsivity is increased by 9 times to 0.15 A/W at 25 V. On this basis, the interdigitated electrodes of Au, Ti, Ti/Au and Ag were prepared by lift-off photolithography. The performance differences of diamond UV detectors prepared by different metal electrodes were compared. The Ag electrode has the best performance among the four electrodes due to the gain caused by the barrier tunneling effect. At 25 V bias, the light current is 0.21 μA, and responsivity increases to 0.78 A/W. Compared with common Au electrode, the photocurrent, light-dark current ratio and responsivity are increased by 5.2 times, 7 times and 5.2 times respectively.
BADILA M, BREZEANU G, MILLAN J, et al. Lift-off technology for SiC UV detectors [J]. Diamond Relat. Mater., 2000, 9(3-6): 994-997.
FLANNERY L B, HARRISON I, LACKLISON D E, et al. Fabrication and characterization of p-type GaN metal-semiconductor-metal ultraviolet photoconductors grown by MBE [J]. Mater. Sci. Eng. B, 1997, 50(1-3): 307-310.
MOON T H, JEONG M C, LEE W, et al. The fabrication and characterization of ZnO UV detector [J]. Appl. Surf. Sci., 2005, 240(1-4): 280-285.
ZHONG M Z, WEI Z M, MENG X Q, et al. High-performance single crystalline UV photodetectors of β-Ga2O3 [J]. J. Alloys Compd., 2015, 619: 572-575.
DE SIO A, DONATO M G, FAGGIO G, et al. Spectral response of large area CVD diamond photoconductors for space applications in the vacuum UV [J]. Diamond Relat. Mater., 2003, 12(10-11): 1819-1824.
TANKALA K, DEBROY T, ALARM M. Oxidation of diamond films synthesized by hot filament assisted chemical vapor deposition [J]. J. Mater. Res., 1990, 5(11): 2483-2489.
WANG L J, XIA Y B, SHEN H J, et al. Infrared optical properties of diamond films and electrical properties of CVD diamond detectors [J]. J. Phys. D: Appl. Phys., 2003, 36(20): 2548-2552.
BIZZARRI A, BOGANI F, BRUZZI M, et al. Luminescence and conductivity studies on CVD diamond exposed to UV light [J]. Nucl. Instrum. Methods Phys. Res. Sec. A: Accel., Spectrom., Detect. Assoc. Equip., 1999, 426(1): 169-172.
ZHOU H Y, ZHU X D, ZHAN R J. Application of CVD diamond film for radiation detection [J]. Nucl. Tech., 2005, 28(2): 135-140. (in Chinese). doi: 10.3321/j.issn:0253-3219.2005.02.012http://dx.doi.org/10.3321/j.issn:0253-3219.2005.02.012
DONATO M G, FAGGIO G, MARINELLI M, et al. High quality CVD diamond for detection applications: structural characterization [J]. Diamond Relat. Mater., 2001, 10(9-10): 1788-1793.
CHEN Y C, LU Y J, LIN C N. Self-powered diamond/β-Ga2O3 photodetectors for solar-blind imaging [J]. J. Mater. Chem. C, 2018, 6(21): 5727-5732.
CHEN Y C, LU Y J, LIAO M Y, et al. 3D solar-blind Ga2O3 photodetector array realized via origami method [J]. Adv. Funct. Mater., 2019, 29(50): 1906040-1-8.
ALVAREZ J, GODARD A, KLEIDER J P, et al. Very high UV-visible selectivity in polycrystalline CVD diamond films [J]. Diamond Relat. Mater., 2004, 13(4-8): 881-885.
ZHANG Z F, LIN C N, YANG X, et al. Wafer-sized polycrystalline diamond photodetector planar arrays for solar-blind imaging [J]. J. Mater. Chem. C, 2022, 10(16): 6488-6496.
HUANG J, WANG L J, TANG K, et al. Ultraviolet detector based on ZnO/diamond film heterojunction diode [J]. Chin. J. Lumin., 2011, 32(3): 272-276. (in Chinese)
LI K Y, ZANG J H, YANG X, et al. Solar-blind position-sensitive detectors fabricated from β-Ga2O3/polycrystalline diamond heterojunctions [J]. Phys. Status Solidi (RRL), 2021, 15(10): 2100347-1-6.
CHANG X H, WANG Y F, ZHANG X F, et al. UV-photodetector based on NiO/diamond film [J]. Appl. Phys. Lett., 2018, 112(3): 032103-1-5.
LIU K, LIU B J, ZHAO J W, et al. Application of back bias to interdigital-electrode structured diamond UV detector showing enhanced responsivity [J]. Sens. Actuators A: Phys., 2019, 290: 222-227.
HISCOCK J, COLLINS A T. Comparison of diamond and silicon ultraviolet photodetectors [J]. Diamond Relat. Mater., 1999, 8(8-9): 1753-1758.
ALVAREZ J, LIAO M Y, KOID Y. Large deep-ultraviolet photocurrent in metal-semiconductor-metal structures fabricated on as-grown boron-doped diamond [J]. Appl. Phys. Lett., 2005, 87(11): 113507-1-3.
LI C, YU L M, YUAN X, et al. Ag nanorods assembled with ZnO nanowalls for near-linear high-response UV photodetectors [J]. J. Alloys Compd., 2020, 830: 154652-1-8.
MARINELLI M, HATTA A, ITO T, et al. Band-A emission in synthetic diamond films: a systematic investigation [J]. Appl. Phys. Lett., 1996, 68(12): 1631-1633.
TERAJI T, YOSHIZAKI S, MITANI S, et al. Transport properties of electron-beam and photo excited carriers in high-quality single-crystalline chemical-vapor-deposition diamond films [J]. J. Appl. Phys., 2004, 96(12): 7300-7305. doi: 10.1063/1.1805723http://dx.doi.org/10.1063/1.1805723
GRAHAM R J, MOUSTAKAS T D, DISKO M M. Cathodoluminescence imaging of defects and impurities in diamond films grown by chemical vapor deposition [J]. J. Appl. Phys., 1991, 69(5): 3212-3218.
LIU J J, CHIU D Y T, MORTON D C, et al. Band gap structure and electron emission property of chemical-vapor-deposited diamond films [J]. Solid⁃State Electron., 2001, 45(6): 915-919.
ZHU W, KOCHANSKI G P, JIN S, et al. Defect-enhanced electron field emission from chemical vapor deposited diamond [J]. J. Appl. Phys., 1995, 78(4): 2707-2711.
LIU K, DAI B, RALCHENKO V, et al. Single crystal diamond UV detector with a groove-shaped electrode structure and enhanced sensitivity [J]. Sens. Actuators A: Phys., 2017, 259: 121-126.
Diamond Solar Blind UV Detectors on Si Substrates with Graphite Electrodes
Field Emission from Diamond Films by Low Voltage Driving
THE BLUE PHOTOLUMINESCENCE OF THIN DIAMOND FILMS
Related Author
You-ming LV
De-liang ZHU
Wen-jun LIU
Ming FANG
Pei-jiang CAO
Yu-xiang ZENG
Zi-yi CHEN
Wei-liang ZHANG
Related Institution
Shenzhen Key Laboratory of Special Functional Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
Research Institute of Electric Communication, Tohoku University, Sendai, Japan
Department of Physics, University of Science and Technology of China, Hefei 230026