Fabrication of multilayer films composed of Prussian blue and its analog nanoparticles and their cation-selective electron-rectification phenomena

2014 Fiscal Year Final Research Report

• Project/Area Number: 24550069
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic chemistry
• Research Institution: Yamagata University
• Principal Investigator: KURIHARA MASATO 山形大学, 理学部, 教授 (50292826)
• Co-Investigator(Renkei-kenkyūsha): KITAGAWA Hiroshi 京都大学, 理学研究科, 教授 (90234244) ; YAMADA Teppei 九州大学, 工学研究科, 准教授 (10404071)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ナノ結晶 / 錯体化学 / 配位高分子 / 薄膜 / 電子整流

Outline of Final Research Achievements

We have successfully prepared water-dispersion solutions of Prussian blue (PB) and its Ni-replaced analog (Ni-PBA) nanoparticles. Double layer (DL) films composed of PB (bottom layer) and Ni-PBA (top layer) NPs have been simply fabricated on indium-tin-oxide (ITO) glass substrates by spin-coating using their water-dispersion solutions, and electron-rectification phenomena of the DL films have been investigated. Via reconstitution of d-π bonding networks among NPs by low-temperature sintering at 120-150°C, the spin-coated films well adhered on the ITO substrates and fragility of the films was surprisingly improved. The bottom layer of the PB NPs behaves as a high-performance electron-blocking layer against the top layer of the Ni-PBA NPs. The electron-rectification phenomena occurred cation-selectively of potassium ions.

Free Research Field

無機・錯体化学