Here, we report the structural and morphological modulation of fullerene C-60 crystals induced by nonionic surfactants diglycerol monolaurate (C(12)G(2)) and monomyristate (C(14)G(2)). C-60 crystals synthesized at a liquid-liquid interface comprising isopropyl alcohol (IPA) and a saturated solution of C-60 in ethylbenzene (EB) exhibited a one-dimensional (1D) morphology with well-defined faceted structure. Average length and diameter of the faceted rods were ca. 4.8 mu m and 747 nm, respectively. Powder X-ray diffraction pattern (pXRD) confirmed a hexagonal-close packed (hcp) structure with cell dimensions ca. a = 2.394 nm and c = 1.388 nm. The 1D rod morphology of C-60 crystals was transformed into "Konpeito candy-like" crystals (average diameter ca. 1.2 mu m) when the C-60 crystals were grown in the presence of C(12)G(2) or C(14)G(2) surfactant (1%) in EB. The pXRD spectra of "Konpeito-like" crystals could be assigned to the face centered cubic (fcc) phase with cell dimensions ca. a = 1.4309 nm (for C(12)G(2)) and a = 1.4318 nm (for C(14)G(2)). However, clusters or aggregates of C-60 lacking a uniform morphology were observed at lower surfactant concentrations (0.1%), although these crystals exhibited an fcc crystal structure. The self-assembled 1D faceted C-60 crystals and "Konpeito-like" C-60 crystals exhibited intense photoluminescence (PL) (similar to 35 times greater than pC(60)) and a blue-shifted PL intensity maximum (similar to 15 run) compared to those of pC(60), demonstrating the potential use of this method for the control of the optoelectronic properties of fullerene nanostructures. The "Konpeito-like" crystals were transformed into high surface area nanoporous carbon with a graphitic microstructure upon heat-treatment at 2000 degrees C. The heat-treated samples showed enhanced electrochemical supercapacitance performance (specific capacitance is ca. 175 F g(-1), which is about 20 times greater than pC(60)) with long cyclic stability demonstrating the potential of the materials in supercapacitor device fabrication.