Constructing simply nanostructured zero-,one-,and two-dimensional crystallites into threedimensional multifunctional assemblies and systems at low-cost is essential and highly challenging in materials science and engineering.Compared to the simply nanostructured components,a three-dimensional(3D) complex made with a precisely controlled spatial organization of all structural nanocomponents can enable us to concert functionalities from all the nanocomponents.Methodologically,so doing in nm-scales via a solution chemistry route may be much easier and less expensive than via other mechanisms.Hence,we discuss herein some recent advances in multistep solution syntheses of nanostructured 3D complexes of semiconductors with a focus mainly on their synthetic strategies and detailed mechanisms. Constructing simply nanostructured zero-, one-, and two-dimensional crystallites into threedimensional multifunctional assemblies and systems at low-cost is essential and highly challenging in materials science and engineering. Compared to the simply nanostructured components, a three-dimensional (3D) complex made with a precisely controlled spatial organization of all structural nanocomponents can enable us to concert functionalities from all the nanocomponents. Methologically, so doing in nm-scales via a solution chemistry route may be much easier and less expensive than via other mechanisms .ence, we discuss herein some recent advances in multistep solution syntheses of nanostructured 3D complexes of semiconductors with a focus mainly on their synthetic strategies and detailed mechanisms.