期刊
ACS ENERGY LETTERS
卷 6, 期 6, 页码 2293-2304出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.1c00568
关键词
-
类别
资金
- European Union [841265]
- Engineering and Physical Sciences Research Council [EP/R023980/1]
- EPSRC Centre for Advanced Materials for Integrated Energy Systems (CAM-IES) [EP/P007767/1]
- George and Lilian Schiff Foundation
- Winton Physics of Sustainability program
- Engineering and Physical Sciences Research Council (EPSRC) studentship
- Cambridge Trust
- Robert Gardiner Scholarship
- Stanford University
- Winton Studentship
- Oppenheimer Studentship
- Engineering and Physical Sciences Research Council (EPSRC) Doctoral Training Centre in Photovoltaics (CDT-PV)
- National University of Ireland Travelling Studentship
- Swiss Federal Office of Energy [SI/501804-01 INTENT]
- Swiss National Science Foundation [176552, CRSII5_171000]
- EU [747221]
- Tata Group [UF150033]
- European Research Council (ERC) under the European Union [756962]
- Cambridge Royce facilities grant [EP/P024947/1]
- EPSRC [EP/P024947/1, EP/P007767/1, EP/R023980/1] Funding Source: UKRI
- Swiss National Science Foundation (SNF) [CRSII5_171000] Funding Source: Swiss National Science Foundation (SNF)
- Marie Curie Actions (MSCA) [841265, 747221] Funding Source: Marie Curie Actions (MSCA)
This study characterizes the microscale optoelectronic properties of Halide perovskite/crystalline silicon (c-Si) tandem solar cells, revealing a strong spatial and spectral dependence of the photoluminescence (PL) response on the texturing design. A holistic optimization of the texturing is required to maximize light in- and out-coupling, balancing the optimal geometrical configuration and optoelectronic performance for future device designs.
Halide perovskite/crystalline silicon (c-Si) tandem solar cells promise power conversion efficiencies beyond the limits of single-junction cells. However, the local light-matter interactions of the perovskite material embedded in this pyramidal multijunction configuration, and the effect on device performance, are not well understood. Here, we characterize the microscale optoelectronic properties of the perovskite semiconductor deposited on different c-Si texturing schemes. We find a strong spatial and spectral dependence of the photoluminescence (PL) on the geometrical surface constructs, which dominates the underlying grain-to-grain PL variation found in halide perovskite films. The PL response is dependent upon the texturing design, with larger pyramids inducing distinct PL spectra for valleys and pyramids, an effect which is mitigated with small pyramids. Further, optimized quasi-Fermi level splittings and PL quantum efficiencies occur when the c-Si large pyramids have had a secondary smoothing etch. Our results suggest that a holistic optimization of the texturing is required to maximize light in- and out-coupling of both absorber layers and there is a fine balance between the optimal geometrical configuration and optoelectronic performance that will guide future device designs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据