Disclosed herein is an anthracene-based organic dye represented by Formula (1):

##STR00001##

wherein the substituents contained in Formula (1) are as defined herein. The anthracene-based organic dye may be used as a photosensitizer in dye-sensitized solar cells to effectively absorb light having a wavelength range which covers the entire visible light wavelength range and which even expands to a near infrared wavelength range and convert the absorbed light into photoelectric current.

Disclosed herein is an anthracene-based organic dye represented by Formula (1):

##STR00001##

wherein the substituents contained in Formula (1) are as defined herein. The anthracene-based organic dye may be used as a photosensitizer in dye-sensitized solar cells to effectively absorb light having a wavelength range which covers the entire visible light wavelength range and which even expands to a near infrared wavelength range and convert the absorbed light into photoelectric current.

The present invention relates to compounds of the formula (1) and (2) ##STR00001##
which are suitable for use in electronic devices, in particular organic electroluminescent devices.

The present invention relates to compounds of the formula (1) and (2) ##STR00001##
which are suitable for use in electronic devices, in particular organic electroluminescent devices.

The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group comprises: a compound 1; and another compound an satisfying a specific condition.

The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group comprises: a compound 1; and another compound an satisfying a specific condition.

A condensed cyclic compound represented by Formula 1: ##STR00001## wherein in Formula 1, groups L.sub.1 and X.sub.1 to X.sub.16 are the same as described in the specification.

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I):

##STR00001##

including stereoisomers, salts and tautomers thereof, wherein R.sup.1a, R.sup.1b, R.sup.2a, R.sup.2b, R.sup.2c, R.sup.2d, R.sup.2e, R.sup.2f, R.sup.2g, R.sup.2h, R.sup.2i, R.sup.2j, R.sup.2k, R.sup.2l, R.sup.2m, R.sup.2n, R.sup.2o, R.sup.2p, R.sup.2q, R.sup.2r and R.sup.2s are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I):

##STR00001##

including stereoisomers, salts and tautomers thereof, wherein R.sup.1a, R.sup.1b, R.sup.2a, R.sup.2b, R.sup.2c, R.sup.2d, R.sup.2e, R.sup.2f, R.sup.2g, R.sup.2h, R.sup.2i, R.sup.2j, R.sup.2k, R.sup.2l, R.sup.2m, R.sup.2n, R.sup.2o, R.sup.2p, R.sup.2q, R.sup.2r and R.sup.2s are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Provided is a photoelectric conversion element including: a first electrode that includes a photosensitive layer containing a light absorbing agent on a conductive support; and a second electrode that is opposite to the first electrode. The light absorbing agent includes a compound having a perovskite-type crystal structure that includes a cation of an element of Group 1 in the periodic table or a cationic organic group A, a cation of a metal atom M other than the element of Group 1 in the periodic table, and an anion of an anionic atom or atomic group X. A hole transport layer, which includes a hole transporting material, is provided between the first electrode and the second electrode. The hole transporting material includes a compound represented by any one of the following Formulae (1) to (4).

##STR00001##