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    • 9. 发明申请
    • PHOTOVOLTAIC ELEMENT WITH INCREASED LONG-TERM STABILITY
    • 光伏元件具有较长的稳定性
    • WO2012150529A1
    • 2012-11-08
    • PCT/IB2012/052074
    • 2012-04-26
    • BASF SEBASF (China) Company LimitedBRUDER, IngmarSENS, RüdigerGROB, MarkusSCHULZE TILLING, Ursula
    • BRUDER, IngmarSENS, RüdigerGROB, MarkusSCHULZE TILLING, Ursula
    • H01L31/04H01L51/42H01L31/048
    • H01L31/02167H01L51/4226H01L51/44Y02E10/549
    • A photovoltaic element (110) for conversion of electromagnetic radiation (130) to electrical energy is proposed, comprising at least one first electrode (116), at least one n-semiconductive metal oxide (120), further comprising at least one dye (112) for absorption of at least a portion of the electromagnetic radiation (130), further comprising at least one organic hole conductor material (126) and at least one second electrode (132). The organic hole conductor material (126) in said photovoltaic element (110) has an absorption spectrum for the electromagnetic radiation (130) which has an absorption maximum in an ultraviolet or blue spectral region and then, toward higher wavelengths, an absorption edge declining with the wavelength of the electromagnetic radiation (130) and having a characteristic wavelength λ HTL . A decadic absorbance of the hole conductor material (126) at a wavelength λ HTL within the declining absorption edge is 0.3. The photovoltaic element (110) further has at least one longpass filter (128). The longpass filter (128) has a transmission edge rising with the wavelength of the electromagnetic radiation (130) and having a characteristic wavelength λ LP , a transmission of the longpass filter (128) at A Lp being 50% of a maximum transmission of the longpass filter (128), where λ HTL - 30 nm ≤ λ LP ≤ λ HTL + 30 nm.
    • 提出了一种用于将电磁辐射(130)转换成电能的光电元件(110),包括至少一个第一电极(116),至少一个n-半导体金属氧化物(120),还包括至少一种染料 ),用于吸收至少一部分电磁辐射(130),还包括至少一个有机空穴导体材料(126)和至少一个第二电极(132)。 所述光电元件(110)中的有机空穴导体材料(126)具有用于电磁辐射(130)的吸收光谱,该吸收光谱在紫外或蓝色光谱区域具有最大吸收,然后朝着较高波长,吸收边缘随着 电磁辐射(130)的波长并具有特征波长λHTL。 在下降的吸收边缘内的波长λHTL处的空穴导体材料(126)的十倍体吸光度为0.3。 光电元件(110)还具有至少一个长通滤波器(128)。 长通滤波器(128)具有随着电磁辐射(130)的波长而上升并具有特征波长λLL的传输边缘,在ALp处的长通滤波器(128)的传输是长通道的最大传输的50% 滤波器(128),其中ΔHTL-30nm =λLP=ΔHTL+ 30nm。