Details

Autor(en) / Beteiligte

• Darwis, Darmawati
• Sesa, Elisa
• Ulum, Syahrul
• Holmes, Natalie P.
• Feron, Krishna
• Thameel, Mahir
• Chowdhury, Riku
• Farhamsah, Dedy
• Tegg, Levi
• Zhou, Xiaojing
• Dastoor, Paul C.
• Belcher, Warwick J.

Titel

Role of Morphology of Surfactant-Free Nanoparticles in Organic Photovoltaics

Ist Teil von

• Journal of electronic materials, 2020-07, Vol.49 (7), p.4168-4179

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Nanoparticulate (NP) films and organic photovoltaic devices have been fabricated from poly(3-hexylthiophene):phenyl C 61 butyric acid methyl ester (P3HT:PC 61 BM) NP aqueous dispersions prepared by the precipitation method. The NP inks were stable for more than 4 days, and nanoparticle organic photovoltaic (NP-OPV) devices with efficiency ( η ) of 1% were fabricated. Detailed analysis of the morphology and performance of the precipitated NP-OPV devices indicated that an optimal blend is responsible for the photocurrent and efficiency observed. These results were confirmed by grazing-incidence x-ray diffraction (GIXRD) analysis, which revealed that the precipitated NPs were resistant to thermal phase segregation, allowing thermal conditioning of the NP films. These results show that precipitated NPs provide a pathway to thermally stable NP-OPV devices with higher photocurrents and efficiencies, approaching those of optimal bulk heterojunction (BHJ) OPV devices.