Journal
ADVANCED ENERGY MATERIALS
Volume 4, Issue 14, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201400224
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Funding
- National Science Foundation of China [51372133]
- Beijing Science and Technology Program [D141100000514001]
- National Program on Key Basic Research Project [2013CB934201, 2011CB013000]
- Tsinghua University Initiative Scientific Research Program [2012Z02102]
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A hybrid heterojunction and solid-state photoelectrochemical solar cell based on graphene woven fabrics (GWFs) and silicon is designed and fabricated. The GWFs are transferred onto n-Si to form a Schottky junction with an embedded polyvinyl alcohol based solid electrolyte. In the hybrid solar cell, solid electrolyte serves three purposes simutaneously; it is an anti-reflection layer, a chemical modification carrier, and a photoelectrochemical channel. The open-circuit voltage, short-circuit current density, and fill factor are all significantly improved, achieving an impressive power conversion efficiency of 11%. Solar cell models are constructed to confirm the hybrid working mechanism, with the heterojunction junction and photoelectrochemical effect functioning synergistically.
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