2020年第81回応用物理学会秋季学術講演会

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一般セッション(口頭講演)

CS コードシェアセッション » 【CS.8】 8.3 プラズマナノテクノロジー, 9.2 ナノ粒子・ナノワイヤ・ナノシート, 13.6 ナノ構造・量子現象・ナノ量子デバイスのコードシェアセッション

[9a-Z21-1~11] 【CS.8】 8.3 プラズマナノテクノロジー, 9.2 ナノ粒子・ナノワイヤ・ナノシート, 13.6 ナノ構造・量子現象・ナノ量子デバイスのコードシェアセッション

2020年9月9日(水) 08:30 〜 11:30 Z21

古閑 一憲(九大)、加納 伸也(産総研)

10:45 〜 11:00

[9a-Z21-9] Electron Transport in Iodide-Capped PbTe@PbS Core@Shell Nanocrystals

Retno Miranti1、〇Satria Zulkarnaen Bisri1,2、Maria Ibanez3,4、Maksym Kovalenko4、Nobuhiro Matsushita1、Yoshihiro Iwasa2,5 (1.Tokyo Inst. Tech.、2.RIKEN-CEMS、3.IST Austria、4.ETH Zurich、5.Univ. Tokyo)

キーワード:colloidal quantum dots, core@shell nanocrystals, electron transport

The ability to control the charge carrier transport in the colloidal QDs assemblies is fundamental for the development of many electronic devices (e.g. solar cells, thermoelectrics, transistor, and photodetectors). Recently, we demonstrated exclusive electron transport in PbTe@PbS core@shell NCs that drastically suppressed contribution of holes to the overall transport distinct to the ambipolar characteristics demonstrated by many narrow bandgap NCs, while simultaneously electron dope the PbTe core. Nevertheless, n-type transport-instability has so far remained a challenge for narrow bandgap Pb-chalcogenide NCs, including this PbTe@PbS core@shell NCs. Here we show enhancement of electron transport and stability in the assemblies of the core@shell NCs using of iodide as the passivating ligand.