Sunlight-thin nanophotonic monocrystalline silicon solar cells

被引：25

作者：

Depauw, Valerie ^{[1
]}

Trompoukis, Christos ^{[1
,2
,3
]}

Massiot, Ines ^{[4
]}

Chen, Wanghua ^{[5
]}

Dmitriev, Alexandre ^{[4
,6
,7
]}

Roca i Cabarrocas, Pere ^{[5
]}

Gordon, Ivan ^{[1
]}

Poortmans, Jef ^{[1
,2
,8
]}

机构：

[1] IMEC, Silicon Photovolta, Kapeldreef 75, B-3001 Leuven, Belgium

[2] Univ Leuven, Dept Elektrotech ESAT, Kasteelpk Arenberg 10, B-3001 Leuven, Belgium

[3] Univ Ghent, Photon Res Grp, iGent, Technol Pk Zwijnaarde 15, Ghent, Belgium

[4] Chalmers Univ Technol, Dept Phys, SE-41296 Gothenburg, Sweden

[5] Univ Paris Saclay, Ecole Polytech, CNRS, LPICM, F-91128 Palaiseau, France

[6] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden

[7] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA

[8] UHasselt, Martelarenlaan 42, B-3500 Hasselt, Belgium

来源：

NANO FUTURES | 2017年 / 1卷 / 02期

关键词：

photovoltaics; light trapping; nanophotonics; colloidal lithography; crystalline-silicon film; NANOSTRUCTURES; MANAGEMENT;

D O I：

10.1088/2399-1984/aa7d7c

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Introducing nanophotonics into photovoltaics sets the path for scaling down the surface texture of crystalline-silicon solar cells from the micro- to the nanoscale, allowing to further boost the photon absorption while reducing silicon material loss. However, keeping excellent electrical performance has proven to be very challenging, as the absorber is damaged by the nanotexturing and the sensitivity to the surface recombination is dramatically increased. Here we realize a light-wavelength-scale nanotextured monocrystalline silicon cell with the confirmed efficiency of 8.6% and an effective thickness of only 830 nm. For this we adopt a self-assembled large-area and industry-compatible amorphous ordered nanopatterning, combined with an advanced surface passivation, earning strongly enhanced solar light absorption while retaining efficient electron collection. This prompts the development of highly efficient flexible and semitransparent photovoltaics, based on the industrially mature monocrystalline silicon technology.

引用

页数：8

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