【摘 要】
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Small molecular organic photovoltaic cell has huge advantages in low cost,flexible and high efficiency[1],and is a very promising next-generationorganic photovoltaic cell.However,due to organic semico
【机 构】
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The School of Physical Science and Technology,Yunnan University,Kunming,Yunnan,650091
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Small molecular organic photovoltaic cell has huge advantages in low cost,flexible and high efficiency[1],and is a very promising next-generationorganic photovoltaic cell.However,due to organic semiconductors commonly have the low carrier mobility and narrow light absorption band,only small amount of photons can be effectively collected with high ohmic losses,and leading to the efficiency of small molecular organic photovoltaic cell is very low[2].
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