Interdigitated Hierarchical Integration of an Efficient Lateral Perovskite Single‐Crystal Solar Cell
7. Clean energy
01 natural sciences
0104 chemical sciences
DOI:
10.1002/cssc.201903038
Publication Date:
2020-02-06T10:40:41Z
AUTHORS (6)
ABSTRACT
AbstractSingle‐crystal perovskite thin films were prepared by a scalable, one‐step, geometrically confined lateral crystal growth (GC‐LCG) method on a patterned rolling mold and used for a photovoltaic study. A record solar cell efficiency of 9.50 % under 0.1 sun with an electrode spacing of 1.5 μm is attained in lateral single‐crystal perovskite materials. Moreover, successful integration for high‐source‐power‐generation interdigitated electrode units patterned in series (1×4), parallel (4×1), and combination (4 series×4 parallel) configurations is devised and affords maximum efficiencies of 7.99, 8.19, and 7.96 %, respectively. Additionally, the cell performances under various illumination intensities (0.1, 0.2, 0.4, 0.6, 0.8, 1.0 sun) to mimic daily sunshine angles and an indoor environment at 1000 lux are elucidated for which short‐circuit current (JSC) values (19.60 mA cm−2 and η=7.43 %) under 1.0 sun and a significant efficiency of 8.13 % under indoor conditions are obtained. This work represents a significant step towards next‐generation, efficient, lateral photovoltaics for possible module integration.
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