| Zinc oxide nanonail based chemical sensor for hydrazine detection A Umar, MM Rahman, SH Kim, YB Hahn Chemical Communications, 166-168, 2008 | 437 | 2008 |
| Catalyst-free large-quantity synthesis of ZnO nanorods by a vapor–solid growth mechanism: structural and optical properties A Umar, SH Kim, YS Lee, KS Nahm, YB Hahn Journal of Crystal Growth 282 (1-2), 131-136, 2005 | 278 | 2005 |
| Low-temperature synthesis of flower-shaped CuO nanostructures by solution process: formation mechanism and structural properties M Vaseem, A Umar, SH Kim, YB Hahn The Journal of Physical Chemistry C 112 (15), 5729-5735, 2008 | 229 | 2008 |
| Ce-doped ZnO nanoparticles for efficient photocatalytic degradation of direct red-23 dye R Kumar, A Umar, G Kumar, MS Akhtar, Y Wang, SH Kim Ceramics International 41 (6), 7773-7782, 2015 | 202 | 2015 |
| Synthesis and characterization of iron oxide nanoparticles for phenyl hydrazine sensor applications SW Hwang, A Umar, GN Dar, SH Kim, RI Badran Sensor Letters 12 (1), 97-101, 2014 | 198 | 2014 |
| Catalyst-free synthesis of ZnO nanowires on Si by oxidation of Zn powders A Sekar, SH Kim, A Umar, YB Hahn Journal of Crystal Growth 277 (1-4), 471-478, 2005 | 194 | 2005 |
| ZnO nanonails: synthesis and their application as glucose biosensor A Umar, MM Rahman, SH Kim, YB Hahn Journal of Nanoscience and Nanotechnology 8 (6), 3216-3221, 2008 | 125 | 2008 |
| Growth and properties of well-crystalline cerium oxide (CeO2) nanoflakes for environmental and sensor applications A Umar, R Kumar, MS Akhtar, G Kumar, SH Kim Journal of colloid and interface science 454, 61-68, 2015 | 124 | 2015 |
| Effect of annealing temperature on the properties and photocatalytic efficiencies of ZnO nanoparticles A Umar, R Kumar, G Kumar, H Algarni, SH Kim Journal of Alloys and Compounds 648, 46-52, 2015 | 119 | 2015 |
| High performance cholesterol sensor based on ZnO nanotubes grown on Si/Ag electrodes R Ahmad, N Tripathy, SH Kim, A Umar, A Al-Hajry, YB Hahn Electrochemistry communications 38, 4-7, 2014 | 98 | 2014 |
| Structural properties and growth mechanism of flower-like ZnO structures obtained by simple solution method Q Ahsanulhaq, SH Kim, JH Kim, YB Hahn Materials Research Bulletin 43 (12), 3483-3489, 2008 | 97 | 2008 |
| 2D Sn-doped ZnO ultrathin nanosheet networks for enhanced acetone gas sensing application Y Al-Hadeethi, A Umar, SH Al-Heniti, R Kumar, SH Kim, X Zhang, ... Ceramics International 43 (2), 2418-2423, 2017 | 95 | 2017 |
| A highly sensitive ammonia chemical sensor based on α-Fe2O3 nanoellipsoids M Abaker, A Umar, S Baskoutas, GN Dar, SA Zaidi, SA Al-Sayari, ... Journal of Physics D: Applied Physics 44 (42), 425401, 2011 | 95 | 2011 |
| Structural and optical properties of CuO layered hexagonal discs synthesized by a low-temperature hydrothermal process M Abaker, A Umar, S Baskoutas, SH Kim, SW Hwang Journal of Physics D: Applied Physics 44 (15), 155405, 2011 | 84 | 2011 |
| Microwave assisted rapid growth of Mg (OH) 2 nanosheet networks for ethanol chemical sensor application F Al-Hazmi, A Umar, GN Dar, AA Al-Ghamdi, SA Al-Sayari, A Al-Hajry, ... Journal of Alloys and Compounds 519, 4-8, 2012 | 77 | 2012 |
| Fabrication of highly sensitive non-enzymatic glucose biosensor based on ZnO nanorods GN Dar, A Umar, SA Zaidi, S Baskoutas, SH Kim, M Abaker, A Al-Hajry, ... Science of Advanced Materials 3 (6), 901-906, 2011 | 76 | 2011 |
| Facile synthesis and photocatalytic activity of cocoon-shaped CuO nanostructures SH Kim, A Umar, R Kumar, AA Ibrahim, G Kumar Materials Letters 156, 138-141, 2015 | 64 | 2015 |
| Ultraviolet-emitting javelin-like ZnO nanorods by thermal evaporation: growth mechanism, structural and optical properties A Umar, SH Kim, EK Suh, YB Hahn Chemical physics letters 440 (1-3), 110-115, 2007 | 59 | 2007 |
| Structural and optical properties of ZnO micro-spheres and cages by oxidation of metallic Zn powder A Umar, SH Kim, YH Im, YB Hahn Superlattices and Microstructures 39 (1-4), 238-246, 2006 | 59 | 2006 |
| Rose-like CuO nanostructures for highly sensitive glucose chemical sensor application SH Kim, A Umar, SW Hwang Ceramics International 41 (8), 9468-9475, 2015 | 58 | 2015 |
Ahmad UmarThe Ohio State University, USA, Najran University, KSA在 nu.edu.sa 的电子邮件经过验证
