Keystone, Colorado, USA



July 28 - August 2, 2019



Granby, Colorado, USA

July 21 - 26, 2019


Conference Summary

It was the pleasure of the American Association for Crystal Growth (AACG) to host the 19th International Conference on Crystal Growth and Epitaxy (ICCGE-19) from July 28-August 2, 2019, in beautiful Keystone, Colorado, USA.  The conference was held under the auspices of the International Organization for Crystal Growth jointly with the 19th US Biennial Workshop on Organometallic Vapor Phase Epitaxy (OMVPE-19) and, as is traditional, was preceded by the 17th International Summer School on Crystal Growth (ISSCG-17), held at the YMCA of the Rockies in nearby Granby Colorado.

ICCGE-19 was the latest in a sequence that started with ICCG-1 in Boston, MA, USA, in 1966, which marked the formation of the crystal growth community as an independent discipline, rather than one subsidiary to other fields.  The key principle of the IOCG and the ICCGE conferences is that the theory and practice of crystal growth are common across a range of materials and applications and that we have much to share with one another. The year 2019 also marked the fiftieth anniversary of the founding of the American Association for Crystal Growth.

The OMVPE-19 workshop continued a tradition, started at Cornell in 1983, of bringing together specialists in the OMVPE field from industry, academia and government laboratories. The informal atmosphere and scenic surroundings of the workshop provided a venue for the presentation of new results and for newcomers to the field to familiarize themselves with OMVPE science and technology.

This was the fourth crystal growth conference held at the Keystone Resort and Conference Center, and this conference demonstrated that we have really perfected enjoying this beautiful venue and its surroundings.  The Keystone area, on the front range of the Rockies, has a mountain climate that is temperate in the summer, and the weather was almost perfect all week. 

The conference kicked off with a lavish opening reception on the terrace outside the session rooms. It was a great opportunity to meet old friends and make new ones, while setting an informal and collegial tone for the week. Overall there were 639 attendees from 31 countries, including 50% from the U.S., 20% from Europe, 19% from Japan and 4.5% from China.

ICCGE/OMVPE-19 provided sessions for presentation and discussion of recent advances in research and development over all aspects of crystal growth, epitaxy, characterization and applications, including general sessions, joint sessions and special topical symposia. The ICCGE/OMVPE sessions featured cross-cutting and cutting-edge science and technology.  Participants were encouraged to move about this technical landscape to follow and broaden their personal interests.  The conference was an excellent opportunity to advance the science and technology of crystal growth, epitaxy, characterization, and applications, as well as to convene with friends, colleagues and business associates.  The technical program included both oral and poster sessions, as well as plenary, award and invited talks, to provide a complete picture of the latest developments in the fields.

The following IOCG prizes and associated talks were given at the Tuesday plenary session:

  • The IOCG Frank Prize at ICCGE-19 was awarded jointly to Professor Darrell Schlom (Cornell University, USA) and Dr. Reinhard Uecker (Leibniz Institute for Crystal Growth (IKZ), Germany) for their pioneering contributions to the development of new perovskite substrates, enabling strain engineering of functional oxides.

  • The IOCG Laudise prize was awarded to Emeritus Professor Kazuo Nakajima (Tohoku University, Japan), for his seminal contributions to the growth of both III-V quaternary layers for optical communication systems and of high-quality Si ingots for high-efficiency solar cells.

  • The IOCG Schieber prize is awarded to a young author to recognize his or her outstanding scientific publications in the field of Crystal Growth and is sponsored by Elsevier and the Journal of Crystal Growth in memory of its Founding Editor. The Schieber Prize for 2019 was awarded to Dr. Anton Jesche (Center for Electronic Correlations and Magnetism, Institut für Physik, Universität Augsburg, Germany), for innovative development of crystal growth processes for complex correlated electron and magnetic materials.

The following talks were given in the Monday and Thursday Plenary Sessions:

  • Robert Feigelson (Stanford University, USA) “A Retrospective on the American Association for Crystal Growth on Its 50th Anniversary”

  • Thierry Duffar (SIMAP EPM, FR) “Defect Engineering in Bulk Crystal Growth”

  • Kei May Lau (Hong Kong University of Science and Technology, HK)  “Advantages and Challenges of Growing III-V Photonic and Electronic Devices on Si”

  • Jim De Yoreo (Pacific Northwest National Laboratory, WA/USA) “They Call It Free Energy So, Hey, Why Pay?”


General and Topical Sessions were held as listed below and included 473 oral presentations and 75 poster presentations that were delivered.  There were two special sessions honoring pioneers in the field and three topical symposia that spanned the week.

  • Fundamentals of Crystal Growth

  • Modeling of Crystal Growth Processes

  • Bulk Crystal Growth

  • Nonlinear Optical and Laser Host Materials

  • Biological and Biomimetic Materials

  • Detector Materials: Scintillators and Semiconductors

  • Industrial Crystal Growth Technology and Equipment

  • Advanced Equipment and Growth Technology

  • Surfaces and Interfaces

  • In situ Observation and Characterization

  • Characterization Techniques for Bulk and Epitaxial Crystals

  • Thin Film Growth, Epitaxy, and Superlattices

  • Nanocrystals, Quantum Dots, and Nanowires

  • 2D Materials and Devices

  • Materials for Photovoltaics and Other Energy Technology

  • Selective and Patterned Epitaxial Growth

  • III-V Epitaxial Growth for Devices

  • III-V's on Silicon

  • III-V Wide Bandgap Nitride Semiconductors and Devices

  • Narrow Bandgap Semiconductors and Devices

  • BN Epitaxial Growth and Characterization

  • Silicon Carbide Materials and Devices

  • Gallium Oxide Materials and Devices

  • Special Session: Honoring Michael Schieber

  • Special Session: Honoring George Gilmer

  • Fourth Symposium on 2D and Other Low Dimensional Materials:

  • Second Symposium on Complex Oxides

  • Second Symposium on Ferroelectric Crystals and Textured Ceramics


Keystone has numerous summer activities for all ages and activity levels including hiking, historic tours, shopping, fishing, golf, horseback riding, gondola rides, spa activities and wonderful western cuisine.  The official Wednesday conference outings were a white-water rafting trip on the Upper Colorado River, which did admittedly get some rain, and a scenic horse-drawn wagon ride through Soda Creek Valley to Keystone's original homestead. One of the highlights of the week was the Thursday night conference banquet, which was conducted as a steak fry at Keystone Stables. The rain held off and the conferees enjoyed a wonderful dinner and companionship that went on well into the night under the stars.  The stable horses were friendly to all as well.


The Conferences are greatly indebted to the following organizations for funding support:

  • International Union of Crystallography (IUCr)

  • Lawrence Livermore National Laboratory (LLNL)

  • National Science Foundation PARADIM MIP Center (Platform for the Accelerated Realization, Analysis, and Discovery of Interface Materials - Materials Innovation Platform), Cornell University

  • Penn State 2D Crystal Consortium - Materials Innovation Platform (2DCC-MIP)

  • The Olsen Foundation/GHO Ventures


We would also like to thank the conference corporate sponsors without whom the sumptuous food functions would not have been possible:

  • BAE Systems

  • Cape Simulations Inc.

  • Coherent Advanced Crystal Group

  • Elemental Metals

  • Elsevier

  • Furuya Metal America

  • Heraeus

  • II-VI Optical Systems

  • IPG Photonics

  • Johnson Matthey

  • Matheson Tri-Gas, Inc.

  • Northrop Grumman Synoptics

  • ProChem Inc.

  • Thermcraft, Inc.

  • Wide Bandgap Materials (II-VI Incorporated)

  • WEP Control


The conference contained both scientific and commercial exhibits. A total of 26 companies and organizations exhibited during the first three days of the conference. A photo contest was sponsored by Elsevier during the conference: 26 attractive photos were presented, and the winners were selected by a vote of the participants. Six contestants shared the prizes.  Additionally, Elsevier and IUCr sponsored best student poster prizes and eight awards were made for the two poster sessions.

Preparations for this conference took over six years, starting with our proposal. We are deeply indebted to the many individuals who gave generously of their time during this period. We would like to express our sincere gratitude to all those who helped with the organization: the members of the ICCGE-19 Organizing Committee, the International Advisory committee, the AACG Executive Committee, the Program Committee, our Executive Administrator and Conference Organizer and the Keystone Resort and all its staff. Most of all we would like to thank the attendees, without whom the technical content and wonderful social atmosphere would not have been possible.

Sincerely yours,

Vince Fratello, Quest Integrated, LLC

Jeff Derby, University of Minnesota

ICCGE Co-chairs


Andy Allerman, Sandia National Labs

OMVPE Workshop Chair


Important Dates


Notification of abstract acceptance

30 April 2019

Notification of IUCr Award recipients

30 April 2019

Proceedings manuscript submission opens

1 May 2019

End of early conference registration

24 May 2019

Conference schedule announced

30 June 2019

Exhibit early bird registration ends

30 June 2019

Photo contest deadline

30 June 2019

Deadline for room block reservations

5 July 2019

End of online registration

19 July 2019

Summer school begins

21 July 2019

Summer school ends

26 July 2019

Conference begins

28 July 2019

Conference ends

2 August 2019

Proceedings manuscript submission deadline

28 September 2019