2018-Sustainable Industrial Processing Summit
SIPS2018
Volume 6. New and Advanced Materials and Technologies
| Editors: | F. Kongoli, F. Marquis, P. Chen, T. Prikhna, N. Chikhradze |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 392 pages |
| ISBN: | 978-1-987820-92-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Growth of Different Cocrystal Conformation by Vapor Deposition
Georgii Bogdanov1; Tatiana Timofeeva1;1NEW MEXICO HIGHLANDS UNIVERSITY, Las Vegas, United States;
Type of Paper: Regular
Id Paper: 416
Topic: 43
Abstract:
Organic electronics and optoelectronics have recently drawn significant attention because they are easy to manufacture, light weight by nature, structurally flexible and possess many other desirable properties which are difficult to achieve using inorganic electronic materials. In recent years much attention was paid to materials built of two or more components. Our group is focused on creation of two-component organic or organic-inorganic crystals with the potential application as semiconductors and light emitting diodes.
There are several ways to obtain crystals of such materials. The most popular way is to grow them from solution. Some years ago, growth of organic compounds from vapor phase started to be used [1,2]. Recently our group worked together with crystallography group from Nanyang Technological University and by using different methods, growth from solution and from vapor phase we were able to obtain different polymorph structures of the same cocrystal tetracene-TCNQ [3]. Growth from vapor phase allows us to grow crystals with much higher purity and larger size.
At present we are optimizing conditions for our setup for organic crystal growth by vapor deposition. The main distinguishing feature of this setup is that we have precise control of each step of the process and we can change parameters to procure the most favorable conditions for crystal growth.
Results of X-Ray diffraction studies of potential charge transfer two component materials obtained by growing from vapor phase and from solution such as OBNc - F6TNAP, AP-tetraene-TCF will be presented. It was found that by performing process of growth from vapor phase we can obtain several different polymorph structures of one compound.
Keywords:
New and advanced materials; New and advanced technology;References:
[1] R.A. Laudise, Ch. Kloc, P.G. Simpkins, T. Siegrist, Physical vapor growth of organic semiconductors, Journal of Crystal Growth 187 (1998) 449-454[2] O.D. Jurchescu, A. Meetsma, T. T. M. Palstra, Low-temperature structure of rubrene single crystals grown by vapor transport, Acta Cryst. (2006). B62, 330-334
[3] Averkiev, B., Isaac, R., Jucov, E. V., Khrustalev, V. N., Kloc, C., McNeil, L. E., & Timofeeva, T. V. (2018). Evidence of Low-Temperature Phase Transition in Tetracene-Tetracyanoquinodimethane Complex. Crystal Growth & Design, 18(7), 4095-4102.