[20a-F104-1~8] 9.2 Nanowires and Nanoparticles

▼ [20a-F104-8] Controlling The Film Formation of Colloidal Quantum Dots Solids for Electronics Devices Applications

〇(M2)Ricky Dwi Septianto^1,2, Satria Zulkarnaen Bisri¹, Liming Liu^1,3, Yasuhiro Ishida¹, Takuzo Aida^1,3, Loredana Protesescu⁴, Maksym Kovalenko⁴, Ferry Iskandar², Yoshihiro Iwasa^1,5 (1.RIKEN CEMS, 2.Dept. Physics, Inst. Teknologi Bandung, Indonesia, 3.Dept. Chemistry & Biotechnology, Univ. of Tokyo, 4.Dept. Chemistry & Applied Biosciences, ETH Zurich & EMPA, Switzerland, 5.QPEC & Dept. of Applied Physics, Univ.Tokyo)

Keywords:Colloidal quantum dots, superlattice, electonics devices

The colloidal quantum dot (QD) solids has become a great research attention in the last decade due to their unique size-dependent properties thus make them suitable for many application such as sensors, photovoltaics, optoelectronic devices, and thermoelectric devices. Furthermore, in the QD solids system, controlling the interaction and connection among individual QDs is very crucial to make such devices work. Herein, we focus on producing large-area of highly-ordered assembly QDs under the existence of ligand-exchange by several methods of film deposition. In several aspects, dip-coating method and liquid-air interfacial assembly method promote better ways to achieve superlattice of QDs in a large scale. The enhancement of electrical transport as the impact of the superlattice assembly quality is demonstrated.