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Perovskite Photovoltaics for Dim‐Light Applications
Author(s) -
Chen ChienYu,
Chang JungHao,
Chiang KaiMing,
Lin HongLin,
Hsiao ShengYi,
Lin HaoWu
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201503448
Subject(s) - photovoltaics , materials science , perovskite (structure) , fabrication , energy conversion efficiency , photovoltaic system , optoelectronics , active layer , nanotechnology , layer (electronics) , electrical engineering , chemical engineering , medicine , alternative medicine , pathology , engineering , thin film transistor
The use of photovoltaic cells with an organometallic perovskite as the active layer for indoor dim‐light energy harvesting is evaluated. By designing the electron‐transporting materials and fabrication processes, the traps in the perovskite active layers and carrier dynamics can be controlled, and efficient devices are demonstrated. The best‐performing small‐area perovskite photovoltaics exhibit a promising high power conversion efficiency up to ≈27.4%, no hysteresis behavior, and an exceptionally low maximum power point voltage variation of ≈0.1 V under fluorescent lamp illumination at 100–1000 lux. The 5.44 cm 2 large‐area device also shows a high efficiency of 20.4% and a promising long‐term stability. Compared with the most efficient inorganic and organic solar cells nowadays, the competitive efficiency, low fabrication cost, and low raw material costs make perovskite photovoltaics ideal for indoor light harvesting and as Internet of Things power provider.