Journal
LANGMUIR
Volume 27, Issue 10, Pages 6374-6380Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la200569v
Keywords
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Funding
- Faculty of Science, National University of Singapore [R-143-000-403-112, R-143-000-377-112]
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Large-scale tetracene-doped anthracene nanowire arrays were prepared, and the doping effects were studied. The high doping concentration up to 10% (molar ratio) has been achieved, attributed to both the unique long-nanowire geometry and the excellent structural compatibility of anthracene and tetracene. The incorporation of long tetracene molecules into the matrix of short anthracene molecules induced an enlarged interlayer thickness, a decreased nanowire thickness, and an expanded nanowire width. The tetracene molecules were homogeneously embedded into the anthracene matrix at low doping concentrations (< 1%). The doping became inhomogeneous at high doping concentrations (>= 1%). The energy transfer efficiency between anthracene and tetracene is nearly 100% at doping concentrations >= 1%.
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