[19p-E317-1~20] 9.2 Nanoparticles, Nanowires and Nanosheets

▲ [19p-E317-18] Enhancing Electrical Conductivity in Lead Chalcogenide Colloidal Quantum Dot Assemblies via Remote Molecular Doping

〇Satria Zulkarnaen Bisri¹, Daiki Shin², Liming Liu², Ibuki Watanabe², Retno Miranti³, Yasuhiro Ishida¹, Yoshihiro Iwasa^1,2 (1.RIKEN-CEMS, 2.Univ. Tokyo, 3.Tokyo Inst. Tech.)

Keywords:colloidal semiconductor nanocrystals, quantum dot assemblies, charge carrier doping

The ability to control the carrier transport in the colloidal quantum dot assemblies is fundamental for altering its electronic and optical properties based on the desired applications. Here we show the demonstration of the enhancement of charge carrier conductivity in various assemblies of lead chalcogenide QDs by remote doping utilizing different types of organic molecules that can donate charge carriers into the QDs. While doping the colloidal QDs using these charge transfer molecular dopants, which some of them are widely used for organic electronics, seem straightforward, several complex parameters are stemming from the fundamentals of the QD system itself.