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tanhua815

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专业: 有机分子功能材料化学

[交流] Hybrid Solar Cells 效率10.9% 太阳能电池杂化发表在science上已有20人参与

The energy cost associated with separating tightly-bound excitons, photo-
generated electron-hole pairs, and extracting free charges from highly disordered
low mobility networks represent fundamental losses for many low-cost photovoltaic
technologies. We report a low-cost, solution-processable solar cell based on a
highly crystalline perovskite absorber with intense visible-to-near-infrared
absorptivity that has a power conversion efficiency of 10.9% in a single junction
device under simulated full sunlight. This “meso-superstructured solar cell” (MSSC)
exhibits exceptionally few fundamental energy losses illustrated by generating
open-circuit photovoltages of over 1.1 volts, despite the relatively narrow absorber
band gap of 1.55 electron volts. The functionality arises from the use of
mesoporous alumina as an inert scaffold which structures the absorber and forces
electrons to reside in and be transported through the perovskite.[ Last edited by tanhua815 on 2012-10-7 at 18:00 ]

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附件 1 : Science-2012-Lee-science.1228604.pdf

2012-10-07 09:44:04, 545.76 K

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