Effects of photon recycling and scattering in high-performance perovskite solar cells

被引：36

作者：

Cho, Changsoon ^{[1
,7
]}

Jang, Yeoun-Woo ^{[2
,3
]}

Lee, Seungmin ^{[4
]}

Vaynzof, Yana ^{[1
,5
]}

Choi, Mansoo ^{[2
,3
]}

Noh, Jun Hong ^{[4
,6
]}

Leo, Karl ^{[1
]}

机构：

[1] Tech Univ Dresden, Dresden Integrated Ctr Appl Phys & Photon Mat IAP, Dresden, Germany

[2] Seoul Natl Univ, Global Frontier Ctr Multiscale Energy Syst, Seoul, South Korea

[3] Seoul Natl Univ, Dept Mech Engn, Seoul, South Korea

[4] Korea Univ, Sch Civil Environm & Architectural Engn, Seoul, South Korea

[5] Tech Univ Dresden, Ctr Adv Elect Dresden Cfaed, Dresden, Germany

[6] Korea Univ, Grad Sch Energy & Environm KU KIST Green Sch, Seoul, South Korea

[7] Univ Cambridge, Dept Phys, Cavendish Lab, Cambridge, England

来源：

SCIENCE ADVANCES | 2021年 / 7卷 / 52期

基金：

新加坡国家研究基金会;

关键词：

LIGHT-EMITTING-DIODES; EFFICIENCY;

D O I：

10.1126/sciadv.abj1363

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Efficient external radiation is essential for solar cells to achieve high power conversion efficiency (PCE). The classical limit of 1/2n(2) (n, refractive index) for electroluminescence quantum efficiency (ELQE) has recently been approached by perovskite solar cells (PSCs). Photon recycling (PR) and light scattering can provide an opportunity to surpass this limit. We investigate the role of PR and scattering in practical device operation using a radiative PSC with an ELQE (13.7% at 1 sun) that significantly surpasses the classical limit (7.4%). We experimentally analyze the contributions of PR and scattering to this strong radiation. A novel optical model reveals an increase of 39 mV in the voltage of our PSC. This analysis can provide design principles for future PSCs to approach the Shockley-Queisser efficiency limit.

引用

页数：8

共 43 条

[1] Highly efficient and stable planar perovskite solar cells by solution-processed tin oxide [J].