摘要:
Photosensitizers having a formula of RuL1L2L3 are provided, wherein Ru is ruthenium; L1, L2 and L3 represent heterocyclic bidentate ligands. L1 has a chemical formula represented by formula (b), L2 has a chemical formula represented by formulae (b), (c), (d) or (e), and L3 a chemical formula represented by formulae (c), (d) or (e). Each of R1 to R18 is a member independently selected from the group consisted of hydrogen, halogen, aryl group, alkenyl group, C1-C20 alkyl group, cycloalkyl group, alkynyl group, CN, CF3, alkylamino, amino, alkoxy, heteroaryl, halogen substituted aryl group, halogen substituted aromatic group, haloalkyl substituted aryl group, haloalkyl substituted aromatic group and aryl substituted C1-C20 alkyl group. The above-mentioned photosensitizers are suitable to serve as sensitizers for fabrication of high efficiency dye-sensitized solar cells.
摘要:
Photosensitizers having a formula of RuL1L2 (1) are provided, wherein Ru is ruthenium; L1 and L2 are heterocyclic tridentate ligands. L1 has a formula of (2), and L2 has a formula of G1G2G3 (3), wherein G1 and G3 are selected from the group consisting of formulae (4) to (7), and G2 is selected from the group consisting of formulae (7) and (8). The above-mentioned photosensitizers are suitable to be used as sensitizers for fabrication of high efficiency dye-sensitized solar cells.
摘要:
A system and method for searching for a contact by a handheld device includes creating a face database, the face database storing face images, and association of the face images with contact information, selecting an image from a photo stored in the handheld device, locating a face in the selected image, comparing the located face with face images stored in the face database, and determining if a matched face image is found in the face database. The method further includes listing contact information associated with the matched face image, the information comprising a phone number of the contact, creating an association between the located face and a user-selected contact if no matched face image is found, and storing the located face and the association in the face database.