Photoconductivity from PbS-nanocrystal∕semiconducting polymer composites for solution-processible, quantum-size tunableinfrared photodetectors
作者： S. A. McDonald , P. W. Cyr , L. Levina , E. H. Sargent
DOI: 10.1063/1.1792380
关键词:
摘要: We report photoconductivity at infrared wavelengths, 975–1300nm, from a polymer∕nanocrystal quantum dot composite. Biased films of the conjugated polymer poly[2-methoxy-5-(2′-ethylhexyloxy-p-phenylenevinylene)] (MEH-PPV) sensitized with PbS nanocrystals (∼5nm diameter) demonstrate photocurrent wavelengths beyond response and corresponding to absorption nanocrystals. The is attributed in subsequent hole transfer had an internal efficiency ∼5×10−6to∼10−5charges∕photon 5V bias.
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