A photofunctional bottom-up bis(dipyrrinato)zinc(II) complex nanosheet

作者：Sakamoto, Ryota^*; Hoshiko, Ken; Liu, Qian; Yagi, Toshiki; Nagayama, Tatsuhiro; Kusaka, Shinpei; Tsuchiya, Mizuho; Kitagawa, Yasutaka; Wong, Wai-Yeung; Nishihara, Hiroshi

来源：Nature Communications, 2015, 6(1): 6713.

DOI：10.1038/ncomms7713

• COVALENT ORGANIC FRAMEWORKS
• LAYERED DOUBLE HYDROXIDES
• 2-DIMENSIONAL POLYMER
• METAL COORDINATION
• ROOM-TEMPERATURE
• ULTRATHIN FILMS
• GRAPHENE
• FABRICATION
• SURFACE
• ARCHITECTURES

Two-dimensional polymeric nanosheets have recently gained much attention, particularly top-down nanosheets such as graphene and metal chalcogenides originating from bulk-layered mother materials. Although molecule-based bottom-up nanosheets manufactured directly from molecular components can exhibit greater structural diversity than top-down nanosheets, the bottom-up nanosheets reported thus far lack useful functionalities. Here we show the design and synthesis of a bottom-up nanosheet featuring a photoactive bis(dipyrrinato)zinc(II) complex motif. A liquid/liquid interfacial synthesis between a three-way dipyrrin ligand and zinc(II) ions results in a multi-layer nanosheet, whereas an air/liquid interfacial reaction produces a single-layer or few-layer nanosheet with domain sizes of >10 mu m on one side. The bis(dipyrrinato)zinc(II) metal complex nanosheet is easy to deposit on various substrates using the Langmuir-Schafer process. The nanosheet deposited on a transparent SnO2 electrode functions as a photoanode in a photoelectric conversion system, and is thus the first photofunctional bottom-up nanosheet.

• 出版日期2015-4
• 单位香港浸会大学深圳研究院