Effect of casting process of polymer active layer on performances of polymer solar cells | Zendy

Miao Xu | Zendy; Junbiao Peng | Zendy

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Effect of casting process of polymer active layer on performances of polymer solar cells

Author(s) -

Miao Xu,

Junbiao Peng

Publication year - 2010

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.59.2131

Subject(s) - materials science , casting , drop (telecommunication) , polymer , energy conversion efficiency , electron mobility , layer (electronics) , composite material , optoelectronics , electrical engineering , engineering

Hole mobility of poly2-methoxy-5-2′-ethylhexyloxy-14- phenylenevinylene MEH-PPV film fabricated by spin-casting and drop-casting has been measured by time-of-flight TOF technique. The non-dispersive hole transport current waveform is obtained. The results exhibit that the hole mobility of MEH-PPV prepared by drop-casting is higher than that of the film prepared by spin-casting. The solar cells based on MEH-PPV and fullerene derivative blend films prepared by spin-casting and drop-castingrespectivelywere fabricated. The power-conversion efficiency PCE of the drop-casting device has a great improvement of over 35%compared with that of spin-casting one. The improvement is attributed to the stronger absorption and better balance of electron and hole transport in MEH-PPV polymer films.

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