Hybrid Silicon Nanocrystals for Color-Neutral and Transparent Luminescent Solar Concentrators

被引：71

作者：

Mazzaro, Raffaello ^{[1
,2
,3
]}

Gradone, Alessandro ^{[3
]}

Angelon, Sara ^{[3
]}

Morselli, Giacomo ^{[3
]}

Cozzi, Pier Giorgio ^{[3
]}

Romano, Francesco ^{[3
]}

Vomiero, Alberto ^{[2
,4
]}

Ceroni, Paola ^{[3
]}

机构：

[1] CNR IMM Bologna, Via Piero Gobetti 101, I-40139 Bologna, Italy

[2] Lulea Univ Technol, Dept Engn Sci & Math, Div Mat Sci, S-97187 Lulea, Sweden

[3] Univ Bologna, Chem Dept Giacomo Ciamician, I-40129 Bologna, Italy

[4] Ca Foscari Univ Venice, Dept Mol Sci & Nanosyst, Via Torino 155, I-30172 Venice, Italy

来源：

ACS PHOTONICS | 2019年 / 6卷 / 09期

基金：

欧盟地平线“2020”;

关键词：

silicon nanoparticles; quantum dots; photovoltaic devices; organic dyes; anthracene; energy transfer; LONG-LIVED LUMINESCENCE; QUANTUM DOTS; CARBON-DOTS; REABSORPTION; PERFORMANCE; EFFICIENCY;

D O I：

10.1021/acsphotonics.9b00802

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

One of the most detrimental loss mechanisms in Luminescent Solar Concentrators (LSCs) is reabsorption of emitted light from the luminophore. Silicon Nanocrystals (SiNCs) offer a solution due to the high apparent Stokes shift, but the poor absorption properties limit their performance as LSC luminophores. Coupling an organic dye to SiNCs represents a smart approach to obtain sensitization of SiNC luminescence by the organic dyes, thus, resulting in tunable and improved optical properties of LSCs. In particular, 9,10-diphenylanthracene was employed as a UV sensitizer for SiNCs in order to produce LSCs with an aesthetic appearance suitable to smart window application and optical efficiency as high as 4.25%. In addition, the role of the energy transfer process on LSC performance was elucidated by a thorough optical and photovoltaic characterization.

引用

页码：2303 / 2311

页数：17

共 41 条

[1] Photoinduced Electron-Transfer Quenching of Luminescent Silicon Nanocrystals as a Way To Estimate the Position of the Conduction and Valence Bands by Marcus Theory [J].