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Si nanowires organic semiconductor hybrid heterojunction solar cells toward 10% efficiency

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Si nanowires organic semiconductor hybrid heterojunction solar cells toward 10% efficiency
นักวิจัย : He, Lining , Jiang, Changyun , Wang, Hao , Lai, Donny , Rusli
คำค้น : DRNTU::Engineering::Electrical and electronic engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : He, L., Jiang, C., Wang, H., Lai, D., & Rusli. (2012). Si Nanowires Organic Semiconductor Hybrid Heterojunction Solar Cells Toward 10% Efficiency. ACS Applied Materials & Interfaces, 4(3), 1704-1708. , 1944-8244 , http://hdl.handle.net/10220/10280 , http://dx.doi.org/10.1021/am201838y
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : ACS applied materials & interfaces
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

High-efficiency hybrid solar cells are fabricated using a simple approach of spin coating a transparent hole transporting organic small molecule, 2,2′,7,7′-Tetrakis-(N,N-di-4-methoxyphenylamino)-9,9′-spirobifluorene (Spiro-OMeTAD) on silicon nanowires (SiNWs) arrays prepared by electroless chemical etching. The characteristics of the hybrid cells are investigated as a function of SiNWs length from 0.15 to 5 μm. A maximum average power conversion efficiency of 9.92% has been achieved from 0.35 μm length SiNWs cells, despite a 12% shadowing loss and the absence of antireflective coating and back surface field enhancement. It is found that enhanced aggregations in longer SiNWs limit the cell performance due to increased series resistance and higher carrier recombination in the shorter wavelength region. The effects of the Si substrate doping concentrations on the performance of the cells are also investigated. Cells with higher substrate doping concentration exhibit a significant drop in the incident photons-to-current conversion efficiency (IPCE) in the near infrared region. Nevertheless, a promising short circuit current density of 19 mA/cm2 and IPCE peak of 57% have been achieved for a 0.9 μm length SiNWs cell fabricated on a highly doped substrate with a minority-carrier diffusion length of only 15 μm. The results suggest that such hybrid cells can potentially be realized using Si thin films instead of bulk substrates. This is promising towards realizing low-cost and high-efficiency SiNWs/organic hybrid solar cells.

บรรณานุกรม :
He, Lining , Jiang, Changyun , Wang, Hao , Lai, Donny , Rusli . (2555). Si nanowires organic semiconductor hybrid heterojunction solar cells toward 10% efficiency.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
He, Lining , Jiang, Changyun , Wang, Hao , Lai, Donny , Rusli . 2555. "Si nanowires organic semiconductor hybrid heterojunction solar cells toward 10% efficiency".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
He, Lining , Jiang, Changyun , Wang, Hao , Lai, Donny , Rusli . "Si nanowires organic semiconductor hybrid heterojunction solar cells toward 10% efficiency."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
He, Lining , Jiang, Changyun , Wang, Hao , Lai, Donny , Rusli . Si nanowires organic semiconductor hybrid heterojunction solar cells toward 10% efficiency. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.