The present invention relates to hot water soluble instant tea and provides a method for preparing an extract, concentrate or powder, which is capable of being reconstituted as a tea beverage, having excellent organoleptic properties and substantially free of undesirable cloudiness and haze, and resembling conventional tea in taste and character. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. The organo-electroluminescent device adopting the organic layer using the thieno3,2-bindole-based polymer has improved color purity, efficiency, and luminance characteristics.