Self-assembly is a viable approach to create soft functional materials with architectural diversity and property variations. Among the large number of different chromophores used, borondipyrromethene (Bodipy) dyes find a unique space because of their promising photophysical properties such as high molar absorptivity, fluorescent quantum yield and excellent photostability along with the associated synthetic ease. Recently, research on Bodipy dyes has experienced a surge of activities in view of favorable self-assembling properties. In this review, recent developments in self-assembled Bodipy dyes and their significance in various applications are discussed.

Self-assembled synthetic hybrid materials are an important class of artificial materials with potential applications in various fields ranging from optoelectronics to medicine. The noncovalent interactions involved in the self-assembly process offer a facile way to create hybrid materials with unique and interesting properties. In this context, selfassembled hybrid materials based on carbon nanotubes (CNTs), graphene, and graphene derivatives such as graphene oxide (GO) and reduced graphene oxide (RGO) are of particular significance. These composites are solution processable, generally exhibit enhanced electrical, mechanical, and chemical properties, and find applications in the fields of light harvesting, energy storage, optoelectronics, sensors, etc. Herein, we present a brief summary of recent developments in the area of self-assembled functional hybrid materials comprising one-dimensional (1D) or twodimensional (2D) carbon allotropes and synthetic π-systems such as aromatic molecules, gelators, and polymers.

Excited state properties such as emission, exciton transport, electron transfer,etc.,are strongly dependent on the shape,sizeand molecular arrangement of chromophore based supramolecular architectures.Herein, we demonstrate creation and control of distinct supramolecular energy landscapes for the reversible control of the excited-state emission processes through cascade energy transfer in chromophore assemblies, facilitated by an unprecedented solvent effect. In methylcyclohexane,atailor-made Y-shaped BODIPY derivative selfassembles to form an unusual spherical architecture of 400-1200 nm size, whichexhibits asingle emission at 540 nm upon 475 nm excitation through an ormal excitation deactivation process.H owever,i nn-decane,t he same BODIPY derivative forms two-dimensional supramolecular sheets,exhibiting multiple emission peaks at 540, 610, 650, 725 and 790 nm with 475 nm excitation due to cascade energy transfer.F urther control on the morphology and excitation energy transfer is possible with variable solvent composition and ultrasound stimulation, resulting in enhanced near-infrared emission with an overall pseudo Stokes shift of 7105 cm À1 .