Atomic-scale construction and characterization of quantum dots array and poly-fluorene chains via 2,7-dibromofluorene on Au(1 1 1)

•Extensive investigations of DBF [2,7-dibromofluorene] molecule on Au(111) surface.•Atomic-scale construction and structural characterization of two-dimensional large-scale quantum dots array via nanoporous double-wall networks on Au(111) substrate.•Atomic-scale construction and detailed structural and electrical characterizations of one-dimensional pristine poly-fluorene chains on Au(111) substrate.•BR-STM technology provides characterization of target products with unprecedented precision.