An apparatus and method for sensing organic liquids, vapors and gases which includes a resistivity sensor means comprising an intimate admixture of conductive particles and a material capable of swelling the presence of the liquid, gas or vapor to be detected and an electrical contact thereto.
Improved age and heat stabilized photovoltaic solar cells comprising a semiconducting layer, a barrier layer containing the metal M. sub. 1 and a stabilizing metal electrode containing two or more metals, one of which is M. sub. 1, such that the tendency for M. sub. 1 to diffuse between the electrode and the barrier layer is approximately zero.
Process For Preparing Photovoltaic Cells Having Increased Adhesion Of The Semi-Conducting Layer And Produced Thereby To The Conducting Layer
Improved adhesion of the semi-conducting layer to the conducting layer in a thin film photovoltaic cell is obtained by incorporating a minor amount of the element or elements of the conducting layer in the semi-conducting layer.