Doped rubrene single-crystal photovoltaic cells were fabricated. Whole photocurrent generated in the pn-homojunction with the macroscopic area of 2 mm × 1 mm was confirmed to be collected through the p-doped homoepitaxial layer. A single-crystal substrate collected excitons to the pn-homojunction with the collection efficiency reaching 46%, owing to the long exciton diffusion length of 2.7 μm.

中文翻译：

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掺杂有机单晶光伏电池

制备了掺杂的红荧烯单晶光伏电池。确认在pn同质结中产生的整个光电流具有2 mm×1 mm的宏观面积，是通过p掺杂的同质外延层收集的。由于长的2.7μm的激子扩散长度，单晶衬底将激子收集到pn同质结上，其收集效率达到46％。