The most dependable technique for meeting the need for energy in the future is photovoltaic (PV) technology. This technology can also provide an effective solution to the mass destruction of nature. Semiconducting thin film solar cells have attracted much attention due to their potentials in efficiency as well as cost. CdSe and CdSeTe thin films are intriguing materials for the realization of electronic and photoelectronic devices for energy conversion. Many researchers have reported about these materials prepared by different techniques and their properties as well as their use in photoelectrochemical cells fabrication. The aim of this paper is to review the development achieved in previous years in the field of monocrystalline, polycrystalline and thin-film PVs.