Record number :
1487807
Title of article :
Enhancing the performance of P3HT:ICBA based polymer solar cells using LiF as electron collecting buffer layer and UV–ozone treated MoO3 as hole collecting buffer layer
Author/Authors :
Cheng، نويسنده , , Fei Fei Fang، نويسنده , , Guojia and Fan، نويسنده , , Xi and Huang، نويسنده , , Huihui and Zheng، نويسنده , , Qiao and Qin، نويسنده , , Pingli and Lei، نويسنده , , Hongwei and Li، نويسنده , , Yongfang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
6
From page :
63
To page :
68
Abstract :
Efficient bulk-heterojunction (BHJ) polymer solar cells (PSCs) based on poly (3-hexylthiophene) (P3HT): indene-C60 bisadduct (ICBA) were fabricated with lithium fluoride (LiF) as electron collecting buffer layer and UV–ozone (UVO) treated molybdenum trioxide (MoO3) as hole collecting buffer layer. LiF is observed to be critical for the device performance, significantly enhancing the fill factor (FF) and the efficiency compared to the device without LiF layer. MoO3 layer is also critical to the device performance, efficiently extracting holes to prevent the exciton quenching and reducing the interfacial resistance because of alignment of energy band. After UVO treatment on MoO3 film, its surface morphology, transmittance and film quality can be improved, therefore, it is beneficial to the performance of the PSCs. The optimal thickness of MoO3 and UVO treatment time on MoO3 was 12 nm and 15 min, respectively. Based on these optimal parameters, a power conversion efficiency (PCE) of 6.43% was obtained under AM1.5G 100 mW/cm2 illumination.
Keywords :
Buffer layer , MoO3 , BHJ polymer solar cell , UV–ozone , LIF
Journal title :
Solar Energy Materials and Solar Cells
Journal title :
Solar Energy Materials and Solar Cells
Serial Year :
2013
Link To Document :
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