Carbon‐Electrode‐Tailored All‐Inorganic Perovskite Solar Cells To Harvest Solar and Water‐Vapor Energy |
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| Authors: | Dr Jialong Duan Tianyu Hu Dr Yuanyuan Zhao Prof Benlin He Prof Qunwei Tang |
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| Institution: | 1. Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou, PR China;2. School of Materials Science and Engineering, Ocean University of China, Qingdao, P. R. China;3. Joint Laboratory for Deep Blue Fishery Engineering, Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China |
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| Abstract: | Moisture is the worst enemy for state‐of‐the‐art perovskite solar cells (PSCs). However, the flowing water vapor within nanoporous carbonaceous materials can create potentials. Therefore, it is a challenge to integrate water vapor and solar energies into a single PSC device. We demonstrate herein all‐inorganic cesium lead bromide (CsPbBr3) solar cells tailored with carbon electrodes to simultaneously harvest solar and water‐vapor energy. Upon interfacial modification and plasma treatment, the bifunctional PSCs yield a maximum power conversion efficiency up to 9.43 % under one sun irradiation according to photoelectric conversion principle and a power output of 0.158 μW with voltage of 0.35 V and current of 0.45 μA in 80 % relative humidity through the flowing potentials at the carbon/water interface. The initial efficiency is only reduced by 2 % on exposing the inorganic PSC with 80 % humidity over 40 days. The successful realization of physical proof‐of‐concept multi‐energy integrated solar cells provides new opportunities of maximizing overall power output. |
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| Keywords: | carbon electrodes energy conversion perovskite solar cells photovoltaics water-vapor energy |
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