Additional file 1: of The Fabrication of Ordered Bulk Heterojunction Solar Cell by Nanoimprinting Lithography Method Using Patterned Silk Fibroin Mold at Room Temperature

The cross-section SEM images of layers within solar cell before (a) and after (b) the depositing of PCBM and LiF/Al layers on the top of P3HT nanograting film. The cross-section SEM images of layers within solar cell are shown to offer some relevant data about the thickness of each layer in the solar cell. (DOC 235 kb

Additional file 2: of The Fabrication of Nanoimprinted P3HT Nanograting by Patterned ETFE Mold at Room Temperature and Its Application for Solar Cell

One-dimensional GIWAXD curves in the q xy direction. Curves are integrated from Fig. 4a, b, c. Parallel and vertical are referred as measurements performed with nanograting line direction parallel and perpendicular to the direction of incident X-rays. It indicates that the (010) reflection signals of samples is present indeed in the q xy direction, which can be indicated by the one-dimensional integrated curve stem from the Fig. 4a, b, c. The peaks at q = 16.8 nm−1 refer to the (010) plane reflections of P3HT crystal and can be investigated for the three samples. (DOC 45 kb

Additional file 1: of The Fabrication of Nanoimprinted P3HT Nanograting by Patterned ETFE Mold at Room Temperature and Its Application for Solar Cell

The cross-section SEM image of P3HT nanograting film bearing a width of ~130 nm and a period of ~280 nm. According to the fabrication process of nanoimprinted P3HT nanograting film, the highest aspect ratio of P3HT nanograting obtained (bearing a width of ~130 nm and a period of ~280 nm) is about 0.5. Here, we define the aspect ratio is the ratio value of height (L) to width (W) within nanograting. (DOC 186 kb

Confinement Induced Preferential Orientation of Crystals and Enhancement of Properties in Ferroelectric Polymer Nanowires

The physical properties of polymers strongly depend on the molecular or supermolecular order and orientation. Here we demonstrate the preferential orientation of lamellar crystals and the enhancement of ferro/piezoelectric properties in individual poly­(vinylidene fluoride-<i>co</i>-trifluoroethylene) (P­(VDF-TrFE)) nanowires fabricated from anodic alumina oxide (AAO) templates. The crystallographic <i>a</i> axis of P­(VDF-TrFE) was found to be aligned along the long axis of nanowires due to geometrical confinement and grapho-expitaxial crystals growth. The alignment of lamellar crystals in P­(VDF-TrFE) nanowires and enhancement of crystallization translated into improved ferro/piezoelectric properties such as lower coercive field and higher piezoelectric coefficient, testified by piezoresponse force microscopy images and piezoresponse hysteresis loops