| 학회 |
한국재료학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 삼척 쏠비치 호텔&리조트) |
| 권호 |
25권 2호 |
| 발표분야 |
B. 나노화학/바이오 재료 분과 |
| 제목 |
size control of Cs3Bi2Br9 nanoparticles and study of phase transition during synthesis. |
| 초록 |
In this report, we presents new method to non-toxic perovskite nanoparticles that are easy, safe, and productive. It is heating-up synthesis of lead-free cesium bismuth bromide (Cs3Bi2Br9) perovskite nanocrystals (NCs) with tailoring size of NCs. The method has been used for the synthesis of metals, metal chalcogenides or lanthanide for a long time. We appropriately applied this method to synthesizing perovskite nanocrystals. The reaction is conducted via injection-free, heating up method. Size of Cs3Bi2Br9 NCs are readily controlled by changing the amounts of surfactants added into the reaction mixture. Upon heating, sequential phase evolution occurs when extending the reaction time or increasing the reaction temperature. We characterize absorption and photoluminescence properties of Cs3Bi2Br9 NCs investigating size dependent optical properties. |
| 저자 |
Donguk Lee1, Ho-Young Woo2, Jiyeon Chae1, Dawon Lee2, Sanghyun Jeon1, Soong-Ju Oh2, Taejong Paik1
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| 소속 |
1School of Integrative Engineering, 2Chung-Ang Univ. |
| 키워드 |
lead-free perovskite; cesium bismuth bromide; heating-up synthesis; Cs3Bi2Br9
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| E-Mail |
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