Publications

Journals

( indicates Equal Contribution, * if Eric Dongheon Ha is a Corresponding Author, IF: 2021 JCR impact factor)

D. Ha,* Y. Yoon, I. J . Park, L. Torres Cantu, A. Martinez, and N. B. Zhitenev, "Nanoscale characterization of photocurrent and photovoltage in polycrystalline solar cells," The Journal of Physical Chemistry C , 127, 11429–11437, 2023

IF: 4.177

Y. Yoon, W. -C. D. Yang, D. Ha, P. M. Haney, D. Hirsh, H. P. Yoon, R. Sharma, and N. B. Zhitenev, "Unveiling defect-mediated charge-carrier recombination at the nanometer scale in polycrystalline solar cells," ACS Applied Materials and Interfaces, 11, 47037-47046, 2019

IF: 10.383

D. Ha* and N. B. Zhitenev, “Improving dielectric nanoresonator array coatings for solar cells,” Particle and Particle Systems Characterization, 35, 1800131, 2018 (Inside Cover)

IF: 3.467

Y. Yoon, D. Ha¶,*, I. J. Park, P. M. Haney, S. Lee, and N. B. Zhitenev, “Nanoscale photocurrent mapping in perovskite solar cells,” Nano Energy, 48, 543-550, 2018

IF: 19.069

D. Ha*, Z. Fang, and N. B. Zhitenev, “Paper in electronic and optoelectronic devices (Invited Review),” Advanced Electronic Materials, 4, 1700593, 2018 (Frontispiece Cover)

IF: 7.633

D. Ha*, Y. Yoon, and N. B. Zhitenev, “Nanoscale imaging of photocurrent enhancement by resonator array photovoltaic coatings,” Nanotechnology, 29, 145401, 2018 (Cover) 

IF: 3.953

Featured in the NIST news, the CNST news, etc.

D. Ha, C. Gong, M. S. Leite, and J. N. Munday, “Demonstration of resonance coupling in scalable dielectric micro-resonator coatings for photovoltaics,” ACS Applied Materials and Interfaces, 8, 24536-24542, 2016 (Cover) 

IF: 10.383

Featured in the news article of A. James. Clark School of Engineering, UMD

D. Ha, J. Murray, Z. Fang, L. Hu, and J. N. Munday, “Advanced broadband antireflection coatings based on cellulose micro-fiber paper,” IEEE Journal of Photovoltaics, 5, 577-583, 2015

IF: 4.401

D. Ha, Z. Fang, L. Hu, and J. N. Munday, “Paper-based anti-reflection coatings for photovoltaics,” Advanced Energy Materials, 4, 1301804, 2014 (Inside Cover) 

IF: 29.698

Featured in the news article of ECE, UMD

Z. Fang, H. Zhu, Y. Yuan, D. Ha, S. Zhu, C. Preston, Q. Chen, Y. Li, X. Han, S. Lee, G. Chen, T. Li, J. Munday, J. Huang, and L. Hu, “Novel nanostructured paper with ultrahigh transparency and ultrahigh haze for solar cells,” Nano Letters, 14, 765-773, 2014

IF: 12.262

D. Ha*, C. Hwang, Y. Lee, and H. Lee, “Low power pixel-level ADC readout circuit for an amorphous silicon-based microbolometer,” IEICE Transactions on Electronics, E92-C, 5, 708-712, 2009

IF: 0.523

Y. Jo, J. Lee, D. Ha, and S. Kang, “Accuracy enhancement for UWB indoor positioning using ray tracing,” The Journal of Korean Institute of Communications and Information Sciences, 31, 10C, 921-926, 2006

J. Lee, S. Yoo, S. Yoon, and D. Ha, “A hypothesis test approach to template selection for UWB rake receivers,” The Journal of Korean Institute of Communications and Information Sciences, 31, 2C, 109-116, 2006

Patents

D. Ha and S. Lee, “Readout Integrated Circuit for Infrared Signal and Method of Reading Out Infrared Signal,” US Patent Application 20120119090, 2013

Conferences Proceedings

D. Ha and N. B. Zhitenev, “Advanced light management in photovoltaics using dielectric nano-resonator arrays,” IEEE Photonics Society Conference, Oct. 2018

D. Ha and N. B. Zhitenev, “Improving dielectric nano-resonator-based antireflection coatings for photovoltaics,” Proceedings of SPIE, 10730, Nanoengineering: Fabrication, Properties, Optics, and Devices XV, 107300A, Sept. 2018

D. Ha, Y. Yoon, I. J. Park, P. M. Haney, and N. B. Zhitenev, “Nanoimaging of local photocurrent in hybrid perovskite solar cells via near-field scanning photocurrent microscopy,” Proceedings of SPIE, 10737, Organic, Hybrid, and Perovskite Photovoltaics XIX, 1073714, Sept. 2018 

D. Ha, Y. Yoon, I. J. Park, P. M. Haney, and N. B. Zhitenev, “Nanoscale imaging of photocurrent in perovskite solar cells using near-field scanning photocurrent microscopy high efficiency solar cells,” IEEE Photovoltaic Specialists Conference (PVSC), June 2018

D. Ha, C. Gong, M. S. Leite, and J. N. Munday, “Resonant and non-resonant dielectric coatings for high efficiency solar cells,” IEEE Photovoltaic Specialists Conference (PVSC), June 2017

D. Ha, C. Hwang, W. Yang, Y. Lee, and H. Lee, “Low power pixel level ADC for a  micro-bolometer,” IEICE Tech. Rep., vol. 108, no. 121, SDM2008-111, pp. 281-284, July 2008

J. Lee, Y. Jo, S. Kang, A. Kang, D. Ha, and S. Yoon, “Determine of the existence of LoS blockage and its application to UWB localization,” IEEE Military Communications Conference (MILCOM), Oct. 2006

Y. Jo, J. Lee, D. Ha, and S. Kang, “Accuracy enhancement for UWB indoor positioning using ray tracing,” IEEE/ION Position, Location and Navigation Symposium (PLANS 2006), pp. 565-568, Apr. 2006

Conference Presentations

(name with underline indicates a Presenter)

D. Ha, E. Strelcov,  S. R. Blankenship, A. K. Agrawal, A. A. Kolmakov, and N. B. Zhitenev, “Engineering thermochromic properties with plasmonics, quantum dots, and 2D materials.,” APS March Meeting, Denver, CO, Mar. 2020 (Oral) (Conference has been canceled due to the COVID 19)

D. Ha and N. B. Zhitenev, “Advanced light management in photovoltaics using dielectric nano-resonator arrays,” IEEE Photonics Society Conference, Reston, VA, Oct. 2018 (Oral)

D. Ha, Y. Yoon, I. J. Park, P. M. Haney, and N. B. Zhitenev, “Nanoimaging of local photocurrent in hybrid perovskite solar cells via near-field scanning photocurrent microscopy,” SPIE Optics and Photonics, San Diego, CA, Aug. 2018 (Oral)

D. Ha and N. B. Zhitenev, “Improving dielectric nano-resonator-based antireflection coatings for photovoltaics,” SPIE Optics and Photonics, San Diego, CA, Aug. 2018 (Oral)

D. Ha, Y. Yoon, I. J. Park, P. M. Haney, and N. B. Zhitenev, “Nanoscale imaging of photocurrent in perovskite solar cells using near-field scanning photocurrent microscopy,” 7th World Conference on Photovoltaic Energy Conversion (45th IEEE Photovoltaic Specialists Conference (PVSC)), Waikoloa, HI, Jun. 2018 (Oral)

D. Ha and N. B. Zhitenev, “Nanoscale Imaging of Resonator-Induced Photocurrent Enhancements of Solar Cells via Near-Field Scanning Photocurrent Microscopy Coatings,” MRS Spring Meeting, Phoenix, AZ, USA, Apr. 2018 (Oral)

D. Ha, Y. Yoon, I. J. Park, P. Haney, S. Lee, and N. B. Zhitenev, “Nanoscale Investigation of Carrier Collections and Degradation Mechanisms of Perovskite Solar Cells via Near-Field Scanning Photocurrent    Microscopy,” MRS Spring Meeting, Phoenix, AZ, USA, Apr. 2018 (Oral)

D. Ha, Y. Yoon, and N. B. Zhitenev, “Resonant coupling of nano-resonator coatings measured by near-field scanning photocurrent microscopy,” APS March Meeting, Los Angeles, CA, USA, Mar. 2018 (Oral)

N. B. Zhitenev, D. Ha, Y. Yoon, I. J. Park, S. Lee, and P. Haney, “Nanoscale imaging of photocurrent generation of perovskite solar cells,” APS March Meeting, Los Angeles, CA, USA, Mar. 2018 (Oral)

D. Ha and N. B. Zhitenev, "Nanoscale characterization of photocurrent enhancements with nano-resonator arrays for photovoltaics,” Optics and Photonics Conference at Johns Hopkins University, Baltimore, MD, USA, Dec. 2017 (Poster)

D. Ha, C. Gong, M. S. Leite, and J. N. Munday, "Resonant and non-resonant dielectric coatings for high efficiency solar cells,” IEEE Photovoltaics Specialists Conference (PVSC), Washington, D.C., USA, June 2017 (Poster), Selected  for an upgrade to a digital poster presentation, Best Poster Award Nomination

D. Ha, C. Gong, M. S. Leite, and J. N. Munday, “Dielectric resonator-based antireflection coatings,” MRS Spring Meeting, Phoenix, AZ, USA, Apr. 2017 (Oral)

D. Ha, C. Gong, M. S. Leite, and J. N. Munday, “Dielectric micro-resonator arrays for optical coupling to solar cells,” APS March Meeting, Baltimore, MD, USA, Mar. 2016 (Oral)

D. Ha and J. N. Munday, "Performance engineering of solar cells using microscale dielectric coatings,” Graduate Student Visit Day at the University of Maryland, College Park, MD, USA, Mar. 2016 (Poster)

D. Ha, Z. Fang, L. Hu, and J. N. Munday, “Cellulose paper for advanced photovoltaic coatings,” MRS Fall Meeting, Boston, MA, USA, Dec. 2015 (Oral)

D. Ha, C. Gong, M. S. Leite, and J. N. Munday, "Dielectric micro-resonator coatings for photovoltaics," MRS Fall Meeting, Boston, MA, USA, Nov. 2015 (Poster), Best Poster Award Nomination

D. Ha, and J. N. Munday, “Paper-based broadband and wide-angle antireflection coatings for Si and GaAs solar cells,” SPIE DSS, Baltimore, MD, USA, Apr. 2015 (Oral)

D. Ha, Z. Fang, L. Hu, and J. N. Munday, “Improved electrical response of photovoltaic devices by photonic structuring,” IEEE Photovoltaics Specialists Conference (PVSC), Denver, CO, USA, June 2014 (Oral)

D. Ha and J. Munday, “Paper-based antireflection coatings for solar cells,” OSA/SPIE Student Poster Competition in Optics and Photonics, College Park, MD, USA, Apr. 2014 (Poster)

D. Ha and H. Lee, “Low power readout circuit for a micro-bolometer with pixel-level A/D conversion,” Chip Design Contest, The 16th Korean Conference on Semiconductors, Daejeon, Korea, Feb. 2009 (Oral)

D. Ha, C. Hwang, W. Yang, Y. Lee, and H. Lee, “Low power pixel-level ADC for a micro-bolometer,” Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor Devices, Sapporo, Japan, July 2008 (Oral)