H. Cotal

1.9k citations

35 papers · 1.4k indexed · h-index 15

Impact in

Renewable Energy, Sustainability and the Environment top 5%
- Photovoltaic System Optimization Techniques
- Solar Thermal and Photovoltaic Systems
Electrical and Electronic Engineering top 5%
- solar cell performance optimization
- Chalcogenide Semiconductor Thin Films
- Silicon and Solar Cell Technologies

Papers in

Electrical and Electronic Engineering 34
- solar cell performance optimization 30
- Chalcogenide Semiconductor Thin Films 26
- Silicon and Solar Cell Technologies 3
Atomic and Molecular Physics, and Optics 17
- Semiconductor Quantum Structures and Devices 16

Co-authors: N.H. Karam Richard R. King Geoffrey S. Kinsey Peter Hébert R.A. Sherif Hojun Yoon Joseph Boisvert Chris Fetzer
Journals: Journal of Applied Physics (2 papers)Progress in Photovoltaics Research and Applications (2 papers)Journal of Crystal Growth (1 paper)Solar Energy Materials and Solar Cells (1 paper)Applied Physics Letters (1 paper)
Partner nations: United States

In The Last Decade

H. Cotal

35 papers receiving 1.3k citations

Peers

Countries citing papers authored by H. Cotal

Since Specialization

Citations

This map shows the geographic impact of H. Cotal's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by H. Cotal with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Cotal more than expected).

Fields of papers citing papers by H. Cotal

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. Cotal. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by H. Cotal. The network helps show where H. Cotal may publish in the future.

Co-authorship network

The 25 scholars most cited alongside H. Cotal, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with H. Cotal Line = papers co-authored together H. Cotal links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Ultra-thin GaAs single-junction solar cells integrated with lattice-matched ZnSe as a reflective back scattering layer Weiquan Yang, Charles R. Allen, Jingjing Li, H. Cotal, C. M. Fetzer, Shi Liu, Ding Ding, S. Farrell, Adri Vanden Brink, Hua Li, G. Castricher, N.H. Karam, Yong‐Hang Zhang	2012	7
2	Solar cell generations over 40% efficiency Progress in Photovoltaics Research and Applications ·Richard R. King, D. M. Bhusari, D. C. Larrabee, M.S. Bateeha, Eric Rehder, K. Edmondson, H. Cotal, Russell K. Jones, J. Ermer, C. M. Fetzer, D. C. Law, N.H. Karam	2012	203
3	Organometallic vapor phase epitaxy growth of upright metamorphic multijunction solar cells Journal of Crystal Growth ·姜宗亮, C. M. Fetzer, Eric Rehder, H. Cotal, S. Mesropian, D. C. Law, Richard R. King	2011	13
4	Heat transfer modeling of concentrator multijunction solar cell assemblies using finite difference techniques H. Cotal, Jon Frost	2010	29
5	III–V multijunction solar cells for concentrating photovoltaics Energy & Environmental Science ·H. Cotal, Chris Fetzer, Joseph Boisvert, Geoffrey S. Kinsey, Richard R. King, Peter Hébert, Hojun Yoon, N.H. Karam	2008	396
6	NEW HORIZONS IN III-V MULTIJUNCTION TERRESTRIAL CONCENTRATOR CELL RESEARCH Richard R. King, R.A. Sherif, Jeannette Yen, M. Haddad, C. M. Fetzer, K. Edmondson, Geoffrey S. Kinsey, Hyoseok Yoon, Lenoir C. Werneck Salarolli, S. Mesropian, H. Cotal, D.D. Krut, J. Ermer, N.H. Karam	2006	14
7	Temperature Dependence of the IV Parameters from Triple Junction GaInP/InGaAs/Ge Concentrator Solar Cells H. Cotal, R.A. Sherif	2006	38
8	The effects of chromatic aberration on the performance of GaInP/GaAs/Ge concentrator solar cells from Fresnel optics H. Cotal, R.A. Sherif	2005	19
9	METAMORPHIC III-V MATERIALS, SUBLATTICE DISORDER, AND MULTIJUNCTION SOLAR CELL APPROACHES WITH OVER 37% EFFICIENCY Richard R. King, C. M. Fetzer, K. Edmondson, P. C. Colter, H. Cotal, R.A. Sherif, Hyoseok Yoon, T. Isshiki, D.D. Krut, Geoffrey S. Kinsey, J. Ermer, Sarah Kurtz, T. Moriarty, J. Kiehl, K. Emery, Wyatt K. Metzger, R. K. Ahrenkiel, N.H. Karam	2004	34
10	High concentration tests of a dense PV array using GaInP/GaAs/Ge triple-junction cells in the high flux solar furnace 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of ·R.A. Sherif, H. Cotal, Alejandro Paredes, A. Lewandowski, Carl Bingham, Mark Mehos	2003	2
11	Lattice-matched and metamorphic GaInP/GaInAs/Ge concentrator solar cells World Conference on Photovoltaic Energy Conversion ·Richard R. King, C. M. Fetzer, P. C. Colter, K. Edmondson, D. C. Law, S Parot, Hyoseok Yoon, Geoffrey S. Kinsey, H. Cotal, J. Ermer, R.A. Sherif, K. Emery, Wyatt K. Metzger, R. K. Ahrenkiel, N.H. Karam	2003	17
12	Outdoor operation of GaInP/GaAs/Ge triple junction concentrator solar cells up to 1000 suns 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of ·H. Cotal, R.A. Sherif, Alejandro Paredes, Silvia Mendes Pantoja, D.D. Krut, N.H. Karam, J. Kiehl, Keith Emery	2003	2
13	Ge concentrator cells for III-V multijunction devices Daniel J. Friedman, J. M. Olson, Scott Ward, T. Moriarty, K. Emery, Sarah Kurtz, A. Duda, Richard R. King, H. Cotal, D.R. Lillington, J. Ermer, N.H. Karam	2002	13
14	Next-generation, high-efficiency III-V multijunction solar cells Richard R. King, N.H. Karam, J. Ermer, N. Haddad, P. C. Colter, T. Isshiki, Hyoseok Yoon, H. Cotal, David Joslin, D.D. Krut, R. Sudharsanan, K. Edmondson, B.T. Cavicchi, D.R. Lillington	2002	59
15	32.3% efficient triple junction GaInP/sub 2//GaAs/Ge concentrator solar cells D.R. Lillington, H. Cotal, J. Ermer, Daniel J. Friedman, T. Moriarty, A. Duda	2002	4
16	Triple-junction solar cell efficiencies above 32%: the promise and challenges of their application in high-conceniration-ratio PV systems H. Cotal, D.R. Lillington, J. Ermer, Richard R. King, N.H. Karam, Sarah Kurtz, Daniel J. Friedman, J. M. Olson, Jas S. Ward, A. Duda, Keith Emery, T. Moriarty	2002	32
17	The effects of electron irradiation on triple-junction Ga/sub 0.5/In/sub 0.5/P/GaAs/Ge solar cells H. Cotal, Richard R. King, M. Haddad, J. Ermer, N.H. Karam, D.D. Krut, David Joslin, Mahoko Takahashi Ueda, B.T. Cavicchi	2002	7
18	Recent developments in high-efficiency Ga0.5In0.5P/GaAs/Ge dual- and triple-junction solar cells: steps to next-generation PV cells Solar Energy Materials and Solar Cells ·N.H. Karam, Richard R. King, M. Haddad, J. Ermer, Hojun Yoon, H. Cotal, R. Sudharsanan, Audita Christina, Kenneth M. Edmondson, David Joslin, D.D. Krut, Mark Takahashi, Lisa Herulf Scholander, Markus Heim-Kunz, Jennifer E Granata, Peter Hébert, B.T. Cavicchi, D.R. Lillington	2001	76
19	Substrate-quality, single-crystal ZnSe for homoepitaxy using seeded physical vapor transport Physica B Condensed Matter ·H. Cotal, B.G. Markey, S.W.S. McKeever, G. Cantwell, W.C. Harsch	1993	11
20	1.4-eV photoluminescence and thermally stimulated conductivity in cadmium telluride Journal of Applied Physics ·H. Cotal, Luis Fernando Cabrera-González, B.G. Markey, S.W.S. McKeever, Jingsheng Yang, J. Aldridge	1990	24

About H. Cotal

H. Cotal is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Renewable Energy, Sustainability and the Environment, Environmental Engineering and Materials Chemistry, having authored 35 papers that have together received 1.4k indexed citations. Recurring topics across this work include solar cell performance optimization (30 papers), Chalcogenide Semiconductor Thin Films (26 papers), Semiconductor Quantum Structures and Devices (16 papers), Quantum Dots Synthesis And Properties (9 papers), Photovoltaic System Optimization Techniques (4 papers), Photovoltaic Systems and Sustainability (3 papers), Silicon and Solar Cell Technologies (3 papers) and Solar Thermal and Photovoltaic Systems (3 papers). The work is most often cited by research in Renewable Energy, Sustainability and the Environment (422 citations), Electrical and Electronic Engineering (1.3k citations), Atomic and Molecular Physics, and Optics (448 citations), Energy Engineering and Power Technology (22 citations) and Materials Chemistry (266 citations). H. Cotal has collaborated with scholars based in United States. Frequent co-authors include N.H. Karam, Richard R. King, Geoffrey S. Kinsey, Peter Hébert, R.A. Sherif, Hojun Yoon, Joseph Boisvert, Chris Fetzer, J. Ermer and K. Edmondson. Their work appears in journals such as Journal of Applied Physics, Progress in Photovoltaics Research and Applications, Journal of Crystal Growth, Solar Energy Materials and Solar Cells and Applied Physics Letters.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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