Abstract:
The present invention provides a dye for a photoelectric conversion element and the like that have large light absorption intensity in the near infrared to infrared region and excellent adhesiveness to a metal oxide layer and thus can enhance the photoelectric conversion characteristics of a photoelectric conversion element. In a photoelectric conversion element comprising a working electrode having a dye-supported metal oxide electrode in which a dye is supported on a metal oxide layer, a compound having a structure represented by the following general formula (1): is used as the dye. wherein R1 to R4 are each independently a linear alkyl group having 4 to 20 carbon atoms and may be the same or different; A1 and A2 are each any one selected from the following aromatic ring group A (a pyrrole ring in the formula (1) is represented by an arc a to show a condensation position with the pyrrole ring), may be the same or different, and may have a substituent in an aromatic ring; An p- is a p-valent anion; p is 1 or 2; and q is a coefficient for keeping a charge of the entire dye neutral.
Abstract:
PROBLEM TO BE SOLVED: To provide a dye for a photoelectric conversion element or the like capable of enhancing photoelectric conversion characteristics of a photoelectric conversion element. SOLUTION: In the photoelectric conversion element provided with a dye-carrying metal oxide electrode in which the dye is carried on a metal oxide layer, a compound having a structure as expressed in general formula (1) is used as the dye. In formula (1), R1-R4 are straight chain type alkyl groups of a carbon number 4-20 independently, and can be the same with or different from one another. Each of A1 and A2 is one kind selected from an aromatic ring group A (pyrrole rings in formula (1) are shown by arcs a in order to show condensation positions with the pyrrole rings). COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a photoelectric conversion element that improves conversion efficiency. SOLUTION: The element includes a working electrode 10, a counter electrode 20 and an electrolyte-containing layer 30. A metal-oxide semiconductor layer 12 which supports a pigment 13 is provided on the working electrode 10. The pigment 13 includes a cyanine compound, and the cyanine compound includes: heterocyclic skeletons each of which includes an indolenine skeleton bonded to both ends of a methine chain; an anchor group introduced into a nitrogen atom included in that indolenine skeleton; and a phenanthrene skeleton that belongs to one of the heterocyclic skeletons. When the pigment 13 is exposed to light, the electron injection efficiency with respect to the metal-oxide semiconductor layer 12 increases. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a photoelectric conversion element and the like, enhanced in photoelectric conversion characteristics and durability.SOLUTION: The photoelectric conversion element equipped with a working electrode having a dye-carrying metal oxide electrode uses a dye having a structure represented by formula (I), wherein: A is a structure in which the maximum absorption wavelength λin an ethanol solution is 350 to 500 nm; B is a cyanine skeleton in which the maximum absorption wavelength λin an ethanol solution is 500 to 700 nm; Zis one divalent coupling group selected from -CONR-, -NRCO-, SONR- and -NRSO-, and R in Zis a hydrogen atom, a 1-8C alkyl group and a 7-20C arylalkyl group; Yand Yare each independently a 1-8C alkylene group or a single bond; and r is 1 or 2, m and n are each independently an integer of 0 to 2, and (m+n) is ≥1.
Abstract translation:要解决的问题:提供光电转换元件等,提高光电转换特性和耐久性。 < P>解决方案:配备有具有染料载体金属氧化物电极的工作电极的光电转换元件使用具有由式(I)表示的结构的染料,其中:A是最大吸收波长λ max SB>为350〜500nm; B是在乙醇溶液中最大吸收波长λ max SB>的花青骨架为500〜700nm; Z 1 SP>是选自-CONR-,-NRCO-,SO 2 SB> NR-和-NRSO 2 SB> - ,Z 1中的R是氢原子,1-8C烷基和7-20C芳基烷基; Y 1 SP>和Y 2 SP>各自独立地为1-8C亚烷基或单键; 并且r为1或2,m和n各自独立地为0〜2的整数,(m + n)≥1。 版权所有(C)2012,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a photoelectric conversion element capable of improving conversion efficiency. SOLUTION: The photoelectric conversion element includes a working electrode 10 having a pigment and a carrier that carries the pigment (for example, a metal oxide semiconductor layer 12). The pigment includes a cyanine compound. In the cyanine compound, at least one of heterocyclic ring skeletons bonded to both ends of a methine chain has a quinoline skeleton or a pyridine skeleton. Having the quinoline skeleton or the pyridine skeleton, the cyanine compound has broader light absorption wavelengths compared with the cyanine compound without those skeletons. Therefore, electronic injection efficiency to the carrier becomes high when light enters the pigment including the cyanine compound having the quinoline skeleton or the pyridine skeleton. COPYRIGHT: (C)2011,JPO&INPIT