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使用二苯甲酰甲烷-二苯菲罗啉-铕(Eu(DBM)3BPhen)作为电子给体和[6,6]-苯基-C61-丁酸酸甲酯([60]PCBM)作为电子受体制备了一种新型的有机光盲型紫外探测器.在光强为2.1 mW cm-2且波长为360 nm的紫外光照射下,获得了26 mA W-1的响应度和9.1%的外量子效率,这是由于Eu(DBM)3BPhen的强紫外光吸收能力和长达300μs的激子寿命使得给受体界面处具有较高的激子解离率.在把[60]PCBM掺入Eu(DBM)3BPhen后,观察到了明显的光致发光猝灭和光电导现象.由于材料较低的载流子迁移率和受陷激子的缓慢释放,在紫外光照射关闭后,观察到了较强的持续光电导现象.
Dibenzoylmethane-diphenanthroline-europium (Eu (DBM) 3BPhen) was used as the electron donor and [6,6] -phenyl-C61- butyric acid methyl ester ([60] A new type of organic photo-blind UV detector was prepared by the acceptor.The responsivity of 26 mA W-1 and 9.1% of the responsivity were obtained under ultraviolet light with a wavelength of 360 nm and a light intensity of 2.1 mW cm-2 External quantum efficiency due to the strong ultraviolet light absorption of Eu (DBM) 3BPhen and the exciton lifetime of up to 300 μs resulted in a higher exciton dissociation rate at the acceptor interface. [60] PCBM incorporation Eu (DBM) 3BPhen, significant photoluminescence quenching and photoconductivity were observed due to the lower charge carrier mobility and the slow release of trapped excitons after the UV irradiation was turned off, a stronger Continuous photoconductivity.