Zachary Holman

Asst Professor

  • 3739 Citations
  • 28 h-Index
20052024
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Research Output 2005 2019

  • 3739 Citations
  • 28 h-Index
  • 67 Article
  • 52 Conference contribution
  • 2 Patent
  • 1 Comment/debate
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Article
2019

20%-efficient epitaxial GaAsP/Si tandem solar cells

Fan, S., Yu, Z. J., Sun, Y., Weigand, W., Dhingra, P., Kim, M., Hool, R. D., Ratta, E. D., Holman, Z. C. & Lee, M. L., Nov 1 2019, In : Solar Energy Materials and Solar Cells. 202, 110144.

Research output: Contribution to journalArticle

Short circuit currents
Solar cells
Current density
Quantum efficiency
Wavelength

GaAs/silicon PVMirror tandem photovoltaic mini-module with 29.6% efficiency with respect to the outdoor global irradiance

Yu, Z., Fisher, K. C., Meng, X., Hyatt, J. J., Angel, R. P. & Holman, Z., Jan 1 2019, In : Progress in Photovoltaics: Research and Applications.

Research output: Contribution to journalArticle

Silicon
irradiance
modules
costs
concentrating
20 Citations (Scopus)

Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%

Chen, B., Yu, Z., Liu, K., Zheng, X., Liu, Y., Shi, J., Spronk, D., Rudd, P. N., Holman, Z. & Huang, J., Jan 16 2019, In : Joule. 3, 1, p. 177-190 14 p.

Research output: Contribution to journalArticle

Perovskite
Solar cells
Silicon
Energy gap
Photocurrents
1 Citation (Scopus)

Nature-inspired chiral metasurfaces for circular polarization detection and full-Stokes polarimetric measurements

Basiri, A., Chen, X., Bai, J., Amrollahi, P., Carpenter, J., Holman, Z., Wang, C. & Yao, Y., Dec 1 2019, In : Light: Science and Applications. 8, 1, 78.

Research output: Contribution to journalArticle

Open Access
Circular polarization
Light polarization
circular polarization
filters
Wavelength

Optical characterization of curved silicon PV modules with dichroic polymeric films

Meng, X., Fisher, K. C., Reinhart, L. O., Taylor, W. S., Stuckelberger, M., Holman, Z. C. & Bertoni, M. I., Oct 2019, In : Solar Energy Materials and Solar Cells. 201, 110072.

Research output: Contribution to journalArticle

Silicon
Polymer films
Solar energy
Fabrication
Facades

Passivation, conductivity, and selectivity in solar cell contacts: Concepts and simulations based on a unified partial-resistances framework

Onno, A., Chen, C., Koswatta, P., Boccard, M. & Holman, Z. C., Nov 14 2019, In : Journal of Applied Physics. 126, 18, 183103.

Research output: Contribution to journalArticle

passivity
solar cells
selectivity
conductivity
contact resistance

P-type Upgraded Metallurgical-Grade Multicrystalline Silicon Heterojunction Solar Cells with Open-Circuit Voltages over 690 mV

Vicari Stefani, B., Weigand, W., Wright, M., Soeriyadi, A., Yu, Z. J., Kim, M., Chen, D., Holman, Z. & Hallam, B., Jan 1 2019, In : Physica Status Solidi (A) Applications and Materials Science. 1900319.

Research output: Contribution to journalArticle

Silicon
Open circuit voltage
open circuit voltage
Heterojunctions
heterojunctions
1 Citation (Scopus)

Silicon Nitride Barrier Layers Mitigate Minority-Carrier Lifetime Degradation in Silicon Wafers during Simulated MBE Growth of III-V Layers

Zhang, C., Ding, L., Boccard, M., Narland, T. U., Faleev, N., Bowden, S., Bertoni, M., Honsberg, C. & Holman, Z., Mar 1 2019, In : IEEE Journal of Photovoltaics. 9, 2, p. 431-436 6 p., 8625581.

Research output: Contribution to journalArticle

Carrier lifetime
barrier layers
carrier lifetime
minority carriers
Silicon nitride

The role of Mg bulk hyper-doping and delta-doping in low-resistance GaN homojunction tunnel diodes with negative differential resistance

Vadiee, E., Clinton, E. A., Carpenter, J. V., McFavilen, H., Arena, C., Holman, Z., Honsberg, C. & Alan Doolittle, W., Aug 28 2019, In : Journal of Applied Physics. 126, 8, 083110.

Research output: Contribution to journalArticle

tunnel diodes
homojunctions
low resistance
tunnel junctions
metalorganic chemical vapor deposition

Ultra-wide-bandgap AlGaN homojunction tunnel diodes with negative differential resistance

Clinton, E. A., Engel, Z., Vadiee, E., Carpenter, J. V., Holman, Z. C. & Doolittle, W. A., Aug 19 2019, In : Applied Physics Letters. 115, 8, 082104.

Research output: Contribution to journalArticle

Open Access
tunnel diodes
homojunctions
tunnel junctions
contact resistance
conduction
2018
1 Citation (Scopus)

Carrier scattering mechanisms limiting mobility in hydrogen-doped indium oxide

Husein, S., Stuckelberger, M., West, B., Ding, L., Dauzou, F., Morales-Masis, M., Duchamp, M., Holman, Z. & Bertoni, M., Jun 28 2018, In : Journal of Applied Physics. 123, 24, 245102.

Research output: Contribution to journalArticle

indium oxides
hydrogen
scattering
grain boundaries
impurities
3 Citations (Scopus)

CdCl2 passivation of polycrystalline CdMgTe and CdZnTe absorbers for tandem photovoltaic cells

Swanson, D. E., Reich, C., Abbas, A., Shimpi, T., Liu, H., Ponce, F., Walls, J. M., Zhang, Y-H., Metzger, W. K., Sampath, W. S. & Holman, Z., May 28 2018, In : Journal of Applied Physics. 123, 20, 203101.

Research output: Contribution to journalArticle

photovoltaic cells
passivity
absorbers
grain boundaries
silicon
3 Citations (Scopus)

Complete regeneration of BO-related defects in n-type upgraded metallurgical-grade Czochralski-grown silicon heterojunction solar cells

Sun, C., Chen, D., Weigand, W., Basnet, R., Phang, S. P., Hallam, B., Holman, Z. & Macdonald, D., Oct 8 2018, In : Applied Physics Letters. 113, 15, 152105.

Research output: Contribution to journalArticle

regeneration
heterojunctions
grade
boron
solar cells
29 Citations (Scopus)

Controlling Thin Film Stress and Wrinkling during Perovskite Film Formation

Bush, K. A., Rolston, N., Gold-Parker, A., Manzoor, S., Hausele, J., Yu, Z., Raiford, J. A., Cheacharoen, R., Holman, Z., Toney, M. F., Dauskardt, R. H. & McGehee, M. D., Apr 6 2018, (Accepted/In press) In : ACS Energy Letters.

Research output: Contribution to journalArticle

Perovskite
Thin films
perovskite
Compressive stress
Light scattering
29 Citations (Scopus)

Minimizing Current and Voltage Losses to Reach 25% Efficient Monolithic Two-Terminal Perovskite-Silicon Tandem Solar Cells

Bush, K. A., Manzoor, S., Frohna, K., Yu, Z., Raiford, J. A., Palmstrom, A. F., Wang, H. P., Prasanna, R., Bent, S. F., Holman, Z. & McGehee, M. D., Sep 14 2018, In : ACS Energy Letters. 3, 9, p. 2173-2180 8 p.

Research output: Contribution to journalArticle

Silicon
Perovskite
Solar cells
Electric potential
Energy gap
1 Citation (Scopus)

Monocrystalline 1.7-eV-Bandgap MgCdTe Solar Cell With 11.2% Efficiency

Becker, J. J., Campbell, C. M., Tsai, C. Y., Zhao, Y., Lassise, M., Zhao, X. H., Boccard, M., Holman, Z. & Zhang, Y-H., Jan 8 2018, (Accepted/In press) In : IEEE Journal of Photovoltaics.

Research output: Contribution to journalArticle

Open circuit voltage
absorbers
Solar cells
Energy gap
solar cells
1 Citation (Scopus)

Optical modeling of wide-bandgap perovskite and perovskite/silicon tandem solar cells using complex refractive indices for arbitrary-bandgap perovskite absorbers

Manzoor, S., Häusele, J., Bush, K. A., Palmstrom, A. F., Carpenter, J., Yu, Z., Bent, S. F., McGehee, M. D. & Holman, Z., Oct 15 2018, In : Optics Express. 26, 21, p. 27441-27460 20 p.

Research output: Contribution to journalArticle

absorbers
solar cells
refractivity
silicon
perovskites
12 Citations (Scopus)

Techno-economic viability of silicon-based tandem photovoltaic modules in the United States

Yu, Z., Carpenter, J. V. & Holman, Z., Jan 1 2018, (Accepted/In press) In : Nature Energy.

Research output: Contribution to journalArticle

Silicon
Economics
Costs
Service life
Electricity
2017
18 Citations (Scopus)

15.3%-Efficient GaAsP Solar Cells on GaP/Si Templates

Vaisman, M., Fan, S., Yaung, K. N., Perl, E., Martín-Martín, D., Yu, Z., Leilaeioun, M., Holman, Z. & Lee, M. L., Aug 11 2017, In : ACS Energy Letters. 2, 8, p. 1911-1918 8 p.

Research output: Contribution to journalArticle

Solar cells
Antireflection coatings
Optical filters
Costs
465 Citations (Scopus)

23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability

Bush, K. A., Palmstrom, A. F., Yu, Z., Boccard, M., Cheacharoen, R., Mailoa, J. P., McMeekin, D. P., Hoye, R. L. Z., Bailie, C. D., Leijtens, T., Peters, I. M., Minichetti, M. C., Rolston, N., Prasanna, R., Sofia, S., Harwood, D., Ma, W., Moghadam, F., Snaith, H. J., Buonassisi, T. & 3 others, Holman, Z., Bent, S. F. & McGehee, M. D., Mar 13 2017, In : Nature Energy. 2, 4, 17009.

Research output: Contribution to journalArticle

Silicon
Perovskite
Solar cells
Cadmium telluride
Cesium
27 Citations (Scopus)

Improved light management in planar silicon and perovskite solar cells using PDMS scattering layer

Manzoor, S., Yu, Z., Ali, A., Ali, W., Bush, K. A., Palmstrom, A. F., Bent, S. F., McGehee, M. D. & Holman, Z., 2017, (Accepted/In press) In : Solar Energy Materials and Solar Cells.

Research output: Contribution to journalArticle

Silicon solar cells
Polydimethylsiloxane
Scattering
Silicon
Short circuit currents
6 Citations (Scopus)

Loss Analysis of Monocrystalline CdTe Solar Cells With 20% Active-Area Efficiency

Becker, J. J., Boccard, M., Campbell, C. M., Zhao, Y., Lassise, M., Holman, Z. & Zhang, Y-H., Mar 30 2017, (Accepted/In press) In : IEEE Journal of Photovoltaics.

Research output: Contribution to journalArticle

Solar cells
solar cells
Open circuit voltage
open circuit voltage
Optical losses
3 Citations (Scopus)

Low-refractive-index nanoparticle interlayers to reduce parasitic absorption in metallic rear reflectors of solar cells

Boccard, M., Firth, P., Yu, Z., Fisher, K. C., Leilaeioun, M., Manzoor, S. & Holman, Z., Oct 1 2017, In : Physica Status Solidi (A) Applications and Materials Science. 214, 10, 1700179.

Research output: Contribution to journalArticle

reflectors
interlayers
Refractive index
Solar cells
solar cells
2 Citations (Scopus)

REU Site: Solar energy research for the terawatt challenge

Holman, Z., Jordan, M., Husman, J., Fisher, K. & Rowlands, T., Jun 24 2017, In : ASEE Annual Conference and Exposition, Conference Proceedings. 2017-June

Research output: Contribution to journalArticle

Engineering education
Solar energy
17 Citations (Scopus)

Silicon heterojunction solar cells with effectively transparent front contacts

Saive, R., Boccard, M., Saenz, T., Yalamanchili, S., Bukowsky, C. R., Jahelka, P., Yu, Z., Shi, J., Holman, Z. & Atwater, H. A., Jan 1 2017, In : Sustainable Energy and Fuels. 1, 3, p. 593-598 6 p.

Research output: Contribution to journalArticle

Tin oxides
Indium
Heterojunctions
Solar cells
Silicon
2 Citations (Scopus)

Substrate-independent analysis of microcrystalline silicon thin films using UV Raman spectroscopy

Carpenter, J. V., Bailly, M., Boley, A., Shi, J., Minjares, M., Smith, D., Bowden, S. & Holman, Z., 2017, (Accepted/In press) In : Physica Status Solidi (B) Basic Research.

Research output: Contribution to journalArticle

Microcrystalline silicon
Silicon
Ultraviolet spectroscopy
Raman spectroscopy
crystallinity
2016
9 Citations (Scopus)

Accuracy of expressions for the fill factor of a solar cell in terms of open-circuit voltage and ideality factor

Leilaeioun, M. & Holman, Z., Sep 28 2016, In : Journal of Applied Physics. 120, 12, 123111.

Research output: Contribution to journalArticle

open circuit voltage
solar cells
cells
injection
unity
5 Citations (Scopus)

CdTe nBn photodetectors with ZnTe barrier layer grown on InSb substrates

He, Z. Y., Campbell, C. M., Lassise, M. B., Lin, Z. Y., Becker, J. J., Zhao, Y., Boccard, M., Holman, Z. & Zhang, Y-H., Sep 19 2016, In : Applied Physics Letters. 109, 12, 121112.

Research output: Contribution to journalArticle

barrier layers
photometers
room temperature
shot noise
dark current
134 Citations (Scopus)

Efficient Semitransparent Perovskite Solar Cells for 23.0%-Efficiency Perovskite/Silicon Four-Terminal Tandem Cells

Chen, B., Bai, Y., Yu, Z., Li, T., Zheng, X., Dong, Q., Shen, L., Boccard, M., Gruverman, A., Holman, Z. & Huang, J., 2016, (Accepted/In press) In : Advanced Energy Materials.

Research output: Contribution to journalArticle

5 Citations (Scopus)

High-mobility Hydrogenated Indium Oxide without Introducing Water during Sputtering

Boccard, M., Rodkey, N. & Holman, Z., Aug 1 2016, In : Energy Procedia. 92, p. 297-303 7 p.

Research output: Contribution to journalArticle

Indium
Sputtering
Oxides
Water
Hydrogen
5 Citations (Scopus)

Monocrystalline CdTe/MgCdTe Double-Heterostructure Solar Cells With ZnTe Hole Contacts

Becker, J. J., Campbell, C. M., Zhao, Y., Boccard, M., Mohanty, D., Lassise, M., Suarez, E., Bhat, I., Holman, Z. & Zhang, Y-H., Nov 22 2016, (Accepted/In press) In : IEEE Journal of Photovoltaics.

Research output: Contribution to journalArticle

Heterojunctions
Solar cells
solar cells
Conversion efficiency
Metallorganic chemical vapor deposition
75 Citations (Scopus)

Monocrystalline CdTe solar cells with open-circuit voltage over 1 v and efficiency of 17%

Zhao, Y., Boccard, M., Liu, S., Becker, J., Zhao, X. H., Campbell, C. M., Suarez, E., Lassise, M. B., Holman, Z. & Zhang, Y-H., May 9 2016, In : Nature Energy. 1, 6, 16067.

Research output: Contribution to journalArticle

Open circuit voltage
Solar cells
Energy gap
Carrier lifetime
Passivation
11 Citations (Scopus)

Off-axis holographic lens spectrum-splitting photovoltaic system for direct and diffuse solar energy conversion

Vorndran, S. D., Chrysler, B., Wheelwright, B., Angel, R., Holman, Z. & Kostuk, R., Sep 20 2016, In : Applied Optics. 55, 27, p. 7522-7529 8 p.

Research output: Contribution to journalArticle

solar energy conversion
Energy conversion
Solar energy
Lenses
modules
8 Citations (Scopus)
amorphous silicon
heterojunctions
solar cells
hydrogen plasma
silicon
2 Citations (Scopus)

Silicon wafers with optically specular surfaces formed by chemical polishing

Yu, Z., Wheelwright, B. M., Manzoor, S. & Holman, Z., Oct 1 2016, In : Journal of Materials Science: Materials in Electronics. 27, 10, p. 10270-10275 6 p.

Research output: Contribution to journalArticle

Chemical polishing
Silicon
Silicon wafers
polishing
Diamond
2015
22 Citations (Scopus)

Amorphous silicon carbide passivating layers for crystalline-silicon-based heterojunction solar cells

Boccard, M. & Holman, Z., Aug 14 2015, In : Journal of Applied Physics. 118, 6, 065704.

Research output: Contribution to journalArticle

silicon carbides
amorphous silicon
heterojunctions
solar cells
silicon
28 Citations (Scopus)

Manufacturing 100-μm-thick silicon solar cells with efficiencies greater than 20% in a pilot production line

Terheiden, B., Ballmann, T., Horbelt, R., Schiele, Y., Seren, S., Ebser, J., Hahn, G., Mertens, V., Koentopp, M. B., Scherff, M., Müller, J. W., Holman, Z., Descoeudres, A., De Wolf, S., De Nicolas, S. M., Geissbuehler, J., Ballif, C., Weber, B., Saint-Cast, P., Rauer, M. & 10 others, Schmiga, C., Glunz, S. W., Morrison, D. J., Devenport, S., Antonelli, D., Busto, C., Grasso, F., Ferrazza, F., Tonelli, E. & Oswald, W., 2015, In : Physica Status Solidi (A) Applications and Materials Science. 212, 1, p. 13-24 12 p.

Research output: Contribution to journalArticle

Silicon solar cells
Silicon
manufacturing
solar cells
wafers
31 Citations (Scopus)

PVMirror: A New Concept for Tandem Solar Cells and Hybrid Solar Converters

Yu, Z., Fisher, K. C., Wheelwright, B. M., Angel, R. P. & Holman, Z., Aug 25 2015, In : IEEE Journal of Photovoltaics. 5, 6, p. 1791-1799 9 p., 7222375.

Research output: Contribution to journalArticle

solar generators
Photovoltaic cells
photovoltaic cells
Solar cells
solar cells
2014
17 Citations (Scopus)

Amorphous Silicon/Crystalline Silicon Heterojunction Solar Cells

Ballif, C., De Wolf, S., Descoeudres, A. & Holman, Z., 2014, In : Semiconductors and Semimetals. 90, p. 73-120 48 p.

Research output: Contribution to journalArticle

Silicon
Amorphous silicon
amorphous silicon
Heterojunctions
heterojunctions
83 Citations (Scopus)

Amorphous silicon oxide window layers for high-efficiency silicon heterojunction solar cells

Peter Seif, J., Descoeudres, A., Filipič, M., Smole, F., Topič, M., Holman, Z., De Wolf, S. & Ballif, C., Jan 14 2014, In : Journal of Applied Physics. 115, 2, 024502.

Research output: Contribution to journalArticle

silicon oxides
amorphous silicon
heterojunctions
solar cells
silicon
44 Citations (Scopus)

Parasitic absorption in the rear reflector of a silicon solar cell: Simulation and measurement of the sub-bandgap reflectance for common dielectric/metal reflectors

Holman, Z., Filipič, M., Lipovšek, B., De Wolf, S., Smole, F., Topič, M. & Ballif, C., 2014, In : Solar Energy Materials and Solar Cells. 120, PART A, p. 426-430 5 p.

Research output: Contribution to journalArticle

Silicon solar cells
Energy gap
Metals
Refractive index
Solar cells
3 Citations (Scopus)

Scanning laser-beam-induced current measurements of lateral transport near-junction defects in silicon heterojunction solar cells

Deceglie, M. G., Emmer, H. S., Holman, Z., Descoeudres, A., De Wolf, S., Ballif, C. & Atwater, H. A., Jan 2014, In : IEEE Journal of Photovoltaics. 4, 1, p. 154-159 6 p., 6670680.

Research output: Contribution to journalArticle

Induced currents
Electric current measurement
Silicon
Laser beams
Heterojunctions
2013
142 Citations (Scopus)

>21% efficient silicon heterojunction solar cells on n-and p-type wafers compared

Descoeudres, A., Holman, Z., Barraud, L., Morel, S., De Wolf, S. & Ballif, C., 2013, In : IEEE Journal of Photovoltaics. 3, 1, p. 83-89 7 p., 6263260.

Research output: Contribution to journalArticle

Silicon
Heterojunctions
heterojunctions
Solar cells
solar cells
43 Citations (Scopus)

Analysis of lateral transport through the inversion layer in amorphous silicon/crystalline silicon heterojunction solar cells

Filipič, M., Holman, Z., Smole, F., De Wolf, S., Ballif, C. & Topič, M., Aug 21 2013, In : Journal of Applied Physics. 114, 7, 074504.

Research output: Contribution to journalArticle

amorphous silicon
heterojunctions
solar cells
inversions
silicon
102 Citations (Scopus)

Hydrogen-doped indium oxide/indium tin oxide bilayers for high-efficiency silicon heterojunction solar cells

Barraud, L., Holman, Z., Badel, N., Reiss, P., Descoeudres, A., Battaglia, C., De Wolf, S. & Ballif, C., 2013, In : Solar Energy Materials and Solar Cells. 115, p. 151-156 6 p.

Research output: Contribution to journalArticle

Silicon
Tin oxides
Indium
Heterojunctions
Hydrogen
95 Citations (Scopus)
polaritons
reflectors
Solar cells
solar cells
Metals
165 Citations (Scopus)

Infrared light management in high-efficiency silicon heterojunction and rear-passivated solar cells

Holman, Z., Filipič, M., Descoeudres, A., De Wolf, S., Smole, F., Topič, M. & Ballif, C., Jan 7 2013, In : Journal of Applied Physics. 113, 1, 013107.

Research output: Contribution to journalArticle

heterojunctions
solar cells
oxides
silicon
metals
69 Citations (Scopus)

Record infrared internal quantum efficiency in silicon heterojunction solar cells with dielectric/metal rear reflectors

Holman, Z., Descoeudres, A., De Wolf, S. & Ballif, C., 2013, In : IEEE Journal of Photovoltaics. 3, 4, p. 1243-1249 7 p., 6587478.

Research output: Contribution to journalArticle

Silicon
Quantum efficiency
reflectors
Heterojunctions
heterojunctions
2012
17 Citations (Scopus)

Absolute absorption cross sections of ligand-free colloidal germanium nanocrystals

Holman, Z. & Kortshagen, U. R., Mar 26 2012, In : Applied Physics Letters. 100, 13, 133108.

Research output: Contribution to journalArticle

absorption cross sections
germanium
nanocrystals
ligands
cross sections
45 Citations (Scopus)

An all-gas-phase approach for the fabrication of silicon nanocrystal light-emitting devices

Anthony, R. J., Cheng, K. Y., Holman, Z., Holmes, R. J. & Kortshagen, U. R., Jun 13 2012, In : Nano Letters. 12, 6, p. 2822-2825 4 p.

Research output: Contribution to journalArticle

Silicon
Nanocrystals
nanocrystals
Gases
vapor phases