期刊
APPLIED PHYSICS LETTERS
卷 95, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3189083
关键词
IV-VI semiconductors; lead compounds; nanostructured materials; organic semiconductors; photovoltaic cells; polymers; semiconductor quantum dots
资金
- Army Research Office
- National Science Foundation [DAAD19-02-D-0001, CMMI 0729263]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [0846818] Funding Source: National Science Foundation
We present in this communication a hybrid polymer/nanocrystal photovoltaic device architecture wherein a net poly(3-hexylthiophene) (P3HT) light-absorbing film is inserted underneath the blended layer of P3HT and PbSe nanocrystal quantum dots in the active region. Such a design features the vertical integration of planar and bulk heterojunctions, which allows for the employment of a thinner bulk heterojunction for more efficient carrier collection without an excessive reduction of the overall light absorption by the photovoltaic cell. The measured device performance represents a significant improvement over previously reported hybrid cells containing bulk heterojunctions of P3HT and Pb(S,Se) nanocrystal quantum dots.
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