Relating the Physical Structure and Optoelectronic Function of Crystalline TIPSPentacene
نویسندگان
چکیده
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 1 wileyonlinelibrary.com order provide an opportunity to understand many fundamental physical properties relevant to solar energy conversion. Additionally, organic crystals are promising in their own right due to the effi cient carrier and energy transport properties associated with their long-range order. In particular, crystalline and polycrystalline fi lms of pentacene (PEN) and its derivatives have high carrier mobility for charge transport (≈1−10 cm 2 /Vs hole mobility) [ 1 ] and signifi cant photoconductivity. [ 2,3 ] Moreover, PEN and many of its derivatives display a propensity for singlet fi ssion (SF), [ 4,5 ] a phenomenon that results in greater than 100% internal quantum effi ciency in organic photovoltaics. Numerous possible molecular functionalizations may modify solid-state structural and optoelectronic properties. [ 6 ] Therefore, elucidating the structure-property relation is important for the design of new functional molecular materials. 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-PEN), [ 7 ]
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