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Paper Abstract and Keywords
Presentation 2023-03-16 13:30
Organic room-temperature phosphorescent cocrystals besed on relationship between halogen bonding and quantum efficiency
Ayano Abe, Kenichi Goushi, Masashi Mamada, Chihaya Adachi (Kyushu Univ.) OME2022-82
Abstract (in Japanese) (See Japanese page) 
(in English) There has been intense interest in pure organic room-temperature phosphorescence (ORTP) from cocrystals composed of 1,4-diiodotetrafluorobenzene (DITFB) and a variety of polyaromatic hydrocarbons (PAHs) or their derivatives. To expand the possibility of halogen bonding-based cocrystals, we investigate the relationship between the crystal packing motifs and ORTP characteristics in binary cocrystals composed of DITFB and PAHs of phenanthrene (Phen), chrysene (Chry), and pyrene (Pyr), respectively. The -hole··· and -hole··· interactions determine not only the crystal packing motifs but also photoluminescence quantum yields (PLQYs). Based on these results, ternary cocrystals are fabricated and realize more than 20% PLQY as a result of suppressing nonradiative decay by changing the crystal packing motif.
Keyword (in Japanese) (See Japanese page) 
(in English) Room-temperature phosphorescence / Halogen bonding / Organic cocrystal / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 445, OME2022-82, pp. 7-10, March 2023.
Paper # OME2022-82 
Date of Issue 2023-03-09 (OME) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee OME  
Conference Date 2023-03-16 - 2023-03-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OME 
Conference Code 2023-03-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Organic room-temperature phosphorescent cocrystals besed on relationship between halogen bonding and quantum efficiency 
Sub Title (in English)  
Keyword(1) Room-temperature phosphorescence  
Keyword(2) Halogen bonding  
Keyword(3) Organic cocrystal  
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1st Author's Name Ayano Abe  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Kenichi Goushi  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
3rd Author's Name Masashi Mamada  
3rd Author's Affiliation Kyushu University (Kyushu Univ.)
4th Author's Name Chihaya Adachi  
4th Author's Affiliation Kyushu University (Kyushu Univ.)
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Speaker Author-1 
Date Time 2023-03-16 13:30:00 
Presentation Time 15 minutes 
Registration for OME 
Paper # OME2022-82 
Volume (vol) vol.122 
Number (no) no.445 
Page pp.7-10 
#Pages 4 
Date of Issue 2023-03-09 (OME) 

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