PUBLICATIONS

Advanced Devices for Energy Conversion

Journals

ACS Applied Nano Materials
년도 2024
학술지명 ACS Applied Nano Materials
논문명 Facile Synthesis Route for Halide Perovskite Nanoparticles Using Ultrasonic Spray for Optoelectronic Devices
게재권/집 7/12
수록페이지 14185
저자명 Dong-Jun Kim, Bongjun Choi, Yeonjee Jeon, and Jung-Yong Lee*
Link 관련링크 https://doi.org/10.1021/acsanm.4c01734 380회 연결

In this paper, we present an efficient and rapid method for synthesizing perovskite nanoparticles (PeNPs) using ultrasonic spray techniques. The synthesized PeNPs are notably larger than the exciton Bohr radius of perovskite, avoiding the quantum confinement effect, and exhibit a size distribution of around 61.6 ± 30 nm. They show an exceptionally narrow full width at half-maximum of approximately 21.8 nm and a high exciton binding energy (Eb) of approximately 204 meV. Furthermore, the physically restrained reprecipitation method not only effectively transforms perovskite precursor droplets into solid PeNPs at the interface of an antisolvent but also concurrently achieves ligand passivation. This dual-action mechanism promotes their dispersion in various organic solvents and highly concentrated solutions, thus significantly expanding the scope of potential optoelectronic applications such as light-emitting diodes and photodetectors.