Title :
An 11%-Power-Conversion-Efficiency Organic–Inorganic Hybrid Solar Cell Achieved by Facile Organic Passivation
Author :
Dong Liu ; Yunfang Zhang ; Xiao Fang ; Fute Zhang ; Tao Song ; Baoquan Sun
Author_Institution :
Inst. of Functional Nano & Soft Mater., Soochow Univ., Suzhou, China
Abstract :
Ultrathin (<; 5 nm) polymer layers formed on crystalline silicon by solution deposition are used as surface passivation layers to realize highly efficient organic-inorganic solar cells. A conductive polymer is then deposited on the passivated silicon surface as a hole transporting layer to fabricate Schottky solar cells. The solar cell with a polyethylenimine passivation layer exhibits an excellent efficiency of 11%. The devices are fabricated by a simple solution-based spin-coating method at low temperature ( <; 150 °C), which may be used to produce efficient organic-inorganic hybrid solar cells at low cost.
Keywords :
conducting polymers; passivation; silicon; solar cells; spin coating; Schottky solar cells; Si; conductive polymer; crystalline silicon; efficiency 11 percent; facile organic passivation; hole transporting layer; polyethylenimine passivation layer; power-conversion-efficiency organic-inorganic hybrid solar cell; solution deposition; solution-based spin-coating method; surface passivation layers; ultrathin polymer layers; Heterojunctions; Passivation; Photovoltaic cells; Polymers; Silicon; Transient analysis; Carrier concentration; high-efficiency hybrid solar cell; solution deposition; transient electrical output characteristics; ultrathin organic layer;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2013.2239255