Growth of wafer-size organic semiconductor crystals and its thermoelectric application

我们尝试将载流子掺杂到有机半导体上，制备出足够尺寸的单晶，并对其热电性能进行了研究。研究了酞菁铜（CuPc）与蒽醌（AQ）在室温下的熔融行为。我们尝试通过蒸发溶剂AQ来生长CuPc的单晶，得到了mm大小的单晶。我们将FeCl3掺杂到CuPc溶液中。XPS和近红外光谱分析表明，电荷转移程度与掺杂剂的摩尔分数有关。掺杂后电导率和塞贝克系数均增加。

We attempted to dope carriers to organic semiconductors and make single crystals with sufficient sizes and studied its thermoelectric properties. We investigated the melting behavior of copper phthalocyanine (CuPc) to anthraquinone (AQ), which are both solid at room temperature. We attempted to grow the single crystal of CuPc by evaporating the solvent AQ and obtained mm-sized single crystals. We doped FeCl3 to CuPc by mixing the dopant to the solution. XPS and near infrared spectroscopy revealed that the charge transfer extent is dependent on the molar fraction of the dopant. The electric conductivity and Seebeck coefficient both increased upon doping.