Abstract: A conjugated polymer that is an electron donor, that is soluble without aggregation, that is solution-coatable and is dryable at a temperature below 70° C., that has an energy conversion efficiency of 7 % or more over an area of 5 cm2 or more, and that is composed of a repeating unit represented by Chemical Formula 1A below: where x is a real number from 0.1 to 0.2; and n is an integer from 1 to 1,000. The conjugated polymer forms a uniform thin film over a large area of, for example, an organic solar cell, without a heat treatment due to superior solubility and crystallinity at low temperature and, thus, allows fabrication of an organic solar cell with high efficiency at a low temperature.

Abstract: The present disclosure relates to a conjugated polymer for a low-temperature process, which is capable of forming a uniform thin film over a large area without a heat treatment process due to superior solubility and crystallinity at low temperature and, thus, allows fabrication of an organic solar cell with high efficiency at low temperature.

Abstract: An internet TV system for automatically taking a survey of an audience to determine a rating of specified TV channels and during specified time periods. The internet TV system includes a broadcasting station and at least two internet TV receivers. The broadcasting station encodes a viewing channel search command into a TV broadcasting signal and broadcasts the TV broadcasting signal. The internet TV receivers decode the TV broadcasting signal received from the broadcasting station. If the decoded TV broadcasting signal includes the viewing channel search command, the internet TV receivers write electronic mails including currently viewed channels, and transmit the electronic mails to the broadcasting station. Then, the broadcasting station determines the audience rating based on the electronic mails received from the internet TV receivers.