Organic solar cells and methods of making the same
地域：
NY
NY New York
摘要
Described is an active layer having a first surface region and a bulk region, the active layer comprising a small molecule component and a polymer component, wherein the relative concentration of the small molecule component is lower in the first surface than in the bulk region. Also described is a method of producing a surface-modified active layer comprising the steps of providing a pristine active layer comprising a small molecule component and a polymer component; applying an adhesive to the exposed surface of the pristine active layer to produce an adhesive-bound active layer; and removing the adhesive from the adhesive-bound active layer, and a method of producing electrical energy from sunlight, such as sunlight deposited over bodies of water.
說明書
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In some embodiments, the method includes optional step 225, where pressure is applied to the adhesive. In one embodiment, the depth of penetration and amount of material removed by the adhesive is dependent on the pressure applied during the application of the adhesive. In one embodiment, a pressure between 100 Pa and 1000 Pa is applied to the adhesive. In one embodiment, the applied pressure is between 100 Pa and 900 Pa. In one embodiment, the applied pressure is between 100 Pa and 750 Pa. In one embodiment, the applied pressure is between 200 Pa and 500 Pa. In one embodiment, the applied pressure is about 200 Pa. In one embodiment, the applied pressure is about 500 Pa.
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