Semiglobular and globular nanostructures were designed by conducting the isothermal crystallization on dilute solutions of Y-type poly(ethylene glycol) (PEG)-b-polythiophene (PTh)₂ and PEG-b-poly(3-dodecyl thiophene) (PDDTh)₂ copolymers. The semiglob(PEG-star-PTh) (6–25 nm) and glob(PEG-star-PDDTh) (5–16 nm) nanostructures were then employed as the morphology compatibilizers in active layers of poly(3-hexylthiophene) (P3HT):phenyl-C71-butyric acid methyl ester (PC71BM) solar cells. The incorporation of pre-designed glob(PEG-star-PDDTh) (11.25 mA/cm², 55%, 0.66 V, 8.7 × 10⁻⁵ cm²/V.s and 7.9 × 10⁻⁴ cm²/V.s) and semiglob(PEG-star-PTh) (13.03 mA/cm², 60%, 0.69 V, 2.1 × 10⁻³ cm²/V.s and 1.5 × 10⁻² cm²/V.s) nanostructures significantly improved the morphological and photovoltaic characteristics, leading to the efficacies of 4.08 and 5.39%, respectively. The ordered assemblies of polythiophenes, in particular the PTh backbones without any side chains, were capable of controlling the morphology in a better manner compared with the individual polymer chains. Although the PEG-b-(PDDTh)₂ (8.7 ns) and PEG-b-(PTh)₂ (9.8 ns) block copolymers increased the life time, the pre-designed glob(PEG-star-PDDTh) (14.5 ns) and semiglob(PEG-star-PTh) (19.1 ns) scrolled nanostructures further affected the reduction of charge trap states. The P3HT:PC71BM:semiglob(PEG-star-PTh) systems also demonstrated the lower charge transfer resistance (R_tr = 158 Ω cm²) with respect to the glob(PEG-star-PDDTh) based devices (309 Ω cm²).

- Semiglobular和球状纳米结构通过进行关于Y型聚（乙二醇）（PEG）的稀溶液等温结晶化设计b -polythiophene（PTH）₂和PEG- b -聚（3-十二烷基噻吩）（PDDTh）₂共聚物。然后，将半球形（PEG- star -PTh）（6–25 nm）和球形（PEG- star -PDDTh）（5–16 nm）纳米结构用作聚（3-己基噻吩）（P3HT）活性层中的形态相容剂。 ）：苯基-C71-丁酸甲酯（PC71BM）太阳能电池。预先设计的水珠的掺入（PEG-星-PDDTh）（11.25毫安/厘米²，55％，0.66 V，8.7×10 ^-5 厘米²/ Vs和7.9×10 ^-4 厘米² / Vs的）和semiglob（PEG-星-PTh）（13.03毫安/厘米²，60％，0.69 V，2.1×10 ^-3 厘米² / Vs和1.5×10 ^-2  cm ² / Vs）纳米结构显着改善了形态和光伏特性，导致效率分别为4.08％和5.39％。与单独的聚合物链相比，聚噻吩的有序组装体，特别是没有任何侧链的PTh主链，能够更好地控制形态。尽管PEG- b-（PDDTh）₂（8.7 ns）和PEG- b-（PTh）₂（9.8 ns）嵌段共聚物增加了使用寿命，预先设计的球形（PEG- star -PDDTh）（14.5 ns）和半球形（PEG- star -PTh）（19.1 ns）滚动纳米结构进一步影响了电荷陷阱态的减少。P3HT：PC71BM：semiglob（PEG- star -PTh）系统还显示出相对于基于glolob （PEG- star -PDDTh）的器件（309Ωcm ²）更低的电荷转移电阻（R _tr  = 158Ωcm ²） 。