Fig. 1. Chemical structure of PFO and Schematic illustration of three distinct conformational structures and their characteristic intrachain torsional angles: (a) R=(CH₂)₇CH₃; (b) -phase; (c) -phase; (d) -phase. PFO的化学结构式及三种不同的构象结构及其特征内扭角的示意图 (a) R=(CH₂)₇CH₃; (b) 构象; (c) 构象; (d) 构象

Fig. 2. (a) Schematic preparation of PFO/S-ACNTs; (b) photographs of ACNTs before and after the densification; (c) SEM and TEM (insets) images of as-grown ACNTs; (d), (e), (f) SEM cross-section images of ACNTs、S-ACNTs and PFO/S-ACNTs in the same magnification.(a) PFO/S-ACNTs样品制备流程图; (b) ACNTs阵列收缩前后的对照图; (c) ACNTs的SEM和TEM图 (插图); (d), (e), (f) 相同放大倍数ACNTs、S-ACNTs和PFO/S-ACNTs的SEM图

Fig. 3. (a) UV-vis absorption spectra (blue) and PL spectra (red) of PFO film; PL spectra of PFO film, PFO/S-ACNTs and PFO&RCNTs film with different annealing conditions corresponding to (b), (c) and (d), respectively (the excitation wavelength is 380 nm); (e) annealing temperature dependence of the 0—0 emission peak of three PFO based samples.(a) PFO薄膜的吸收光谱 (蓝色) 与荧光光谱 (红色); (b), (c), (d) 分别对应PFO薄膜、PFO/S-ACNTs和PFO&RCNTs薄膜随退火温度变化的荧光光谱图 (激发波长为380 nm); (e) 三种PFO样品0—0发射峰峰位随退火温度的变化

Fig. 4. XRD diffraction pattern of (a) PFO drop film, (b) PFO/S-ACNTs, and (c) PFO & RCNTs at different annealing temperature (all samples are annealed in nitrogen atmosphere for 1 h).三种薄膜样品在不同温度下退火后的XRD衍射图 (所有样品在氮气氛围下退火1 h) (a) PFO滴膜样品; (b) PFO/S-ACNTs样品; (c) PFO & RCNTs