The fabrication and characteristic investigation of microstructured silicon with different spike heights

Peng, Yan; Zhou, Yunyan; Chen, XiangQian; Zhu, Yiming

doi:10.1016/j.optcom.2014.08.034

Cited by 11 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The surface microstructures can trap the light by multiple reflections on the textured surface, which results in an absorption enhancement. The other factor is the S ion hyperdoped by fs-laser irradiation in SF 6 ambient [ 5 , 6 ]. The hyperdoping introduces some intermediate bands near the conductance band into the Si bandgap [ 10 ], which contributes to below-bandgap absorption and consequently enhances the absorption of black Si in the NIR region.…”

Section: Resultsmentioning

confidence: 99%

“…This will extend the photoresponse of Si-based optoelectronic devices into the NIR region (>1100 nm) [ 1 – 4 ]. Recently, a type of Si named “black Si” fabricated by femtosecond (fs)-laser irradiation method has been reported [ 5 , 6 ]. Black Si exhibits a very high absorption in not only the visible but also the NIR region extending to 2.5 μm because of the special surface microstructure and chalcogen hyperdoping induced by fs-laser processing.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compensating the Degradation of Near-Infrared Absorption of Black Silicon Caused by Thermal Annealing

Wang¹,

Gao²,

Yang³

et al. 2016

Nanoscale Res Lett

View full text Add to dashboard Cite

We propose the use of thin Ag film deposition to remedy the degradation of near-infrared (NIR) absorption of black Si caused by high-temperature thermal annealing. A large amount of random and irregular Ag nanoparticles are formed on the microstructural surface of black Si after Ag film deposition, which compensates the degradation of NIR absorption of black Si caused by thermal annealing. The formation of Ag nanoparticles and their contributions to NIR absorption of black Si are discussed in detail.

show abstract

Section: Resultsmentioning

confidence: 99%