High-Performance Bifacial Perovskite/Silicon Double-Tandem Solar Cell

Imran, Hassan; Durrani, Imranzeb; Kamran, Muhammad Arshad; Abdolkader, Tarek M.; Faryad, Muhammad; Butt, Nauman Zafar

doi:10.1109/jphotov.2018.2846519

Cited by 17 publications

(11 citation statements)

References 27 publications

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“…Recently, bifacial perovskite/silicon tandem solar cells were extensively investigated. [ 14–18 ] In particular, Onno et al found that the range of appropriate top‐cell bandgaps broadens in a bifacial tandem‐cell configuration. [ 15 ] This is in line with thermodynamic consideration by Khan et al [ 19 ] Additional photons absorbed in the silicon bottom cell from rear‐side illumination allow for a lower bandgap of the (perovskite) top cell at current‐matching conditions.…”

Section: Introductionmentioning

confidence: 99%

Perovskite/Silicon Tandem Solar Cells: Effect of Luminescent Coupling and Bifaciality

Jäger

Tillmann

Katz³

et al. 2021

Solar RRL

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The power conversion efficiency of the market‐dominating silicon photovoltaics approaches its theoretical limit. Bifacial solar operation with harvesting additional light impinging on the module back and the perovskite/silicon tandem device architecture are among the most promising approaches for further increasing the energy yield from a limited area. Herein, the energy output of perovskite/silicon tandem solar cells in monofacial and bifacial operation is calculated, for the first time considering luminescent coupling (LC) between two sub‐cells. For energy yield calculations, idealized solar cells are studied at both standard testing as well as realistic weather conditions in combination with a detailed illumination model for periodic solar panel arrays. Typical experimental photoluminescent quantum yield values reveal that more than 50% of excess electron–hole pairs in the perovskite top cell can be utilized by the silicon bottom cell by means of LC. As a result, LC strongly relaxes the constraints on the top‐cell bandgap in monolithic tandem devices. In combination with bifacial operation, the optimum perovskite bandgap shifts from 1.71 eV to the range 1.60–1.65 eV, where already high‐quality perovskite materials exist. The results are very important for developing optimal perovskite materials for tandem solar cells.

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Section: Introductionmentioning

confidence: 99%

Perovskite/Silicon Tandem Solar Cells: Effect of Luminescent Coupling and Bifaciality

Jäger

Tillmann

Katz³

et al. 2021

Solar RRL

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“…Bifacial ST-PSCs can further push the monofacial PSC performance via collecting the reflected rear illumination from the back ITO side. [37] The total additional power output that can be added is determined by the rear-side efficiency, the irradiance from the background reflection on the rear side, and the FF at irradiance larger than 1 sun. [37][38][39] To investigate the bifacial performance of a 0.09 cm 2 ST-PSC (a new batch of cells were manufactured for this study), and generate two-sided irradiance, a white paper sheet (A4 size) was applied as a back reflector at distances of 0, 2, 4, 6, and 8 cm.…”

Section: Bifacial Perovskite Solar Cellsmentioning

confidence: 99%

“…[37] The total additional power output that can be added is determined by the rear-side efficiency, the irradiance from the background reflection on the rear side, and the FF at irradiance larger than 1 sun. [37][38][39] To investigate the bifacial performance of a 0.09 cm 2 ST-PSC (a new batch of cells were manufactured for this study), and generate two-sided irradiance, a white paper sheet (A4 size) was applied as a back reflector at distances of 0, 2, 4, 6, and 8 cm. As a result (of the white sheet behind the device), bifacial ST-PSC JÀV curves were measured under 1-sun standard conditions on the front side and with a reflected albedo (RA) up to %33.5% from the rear side.…”

Section: Bifacial Perovskite Solar Cellsmentioning

confidence: 99%

Light‐Soak Stable Semitransparent and Bifacial Perovskite Solar Cells for Single‐Junction and Tandem Architectures

et al. 2022

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Semitransparent perovskite solar cells (ST‐PSCs) are very attractive due to their potential applications in single junctions for building‐integrated photovoltaics (BIPV) and in tandem PV technology using low‐bandgap bottom solar cells. Despite the high efficiency achieved, the ST‐PSCs still suffer low bifaciality, which can limit their overall energy yield for application in BIPV technologies. Furthermore, the knowledge on the long‐term light‐soaking stability of the ST‐PSC from both illumination sides is required to optimize the energy production in the long term. p−i−n ST‐PSCs and semitransparent perovskite solar minimodules with comparable and high efficiencies when illuminated from either the rear or the front sides, resulting in the highest reported bifaciality factor of 97%, are demonstrated. A bifacial equivalent power output of 21.3 W m−2 is achieved for ST‐PSCs under 1 sun illumination on the front side, while using a white back reflector from the rear side with 33.5% reflected albedo. However, the side of illumination has a big impact on the light‐soak stability of the ST‐PSCs. It is observed that the ST‐PSC provides more stable output power under illumination from the rear side (n‐side) of the stack.

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“…Within the EU, titanium dioxide is under scrutiny because of possibly carcinogenic health effects to humans (VCI 2016). On the other hand-although much smaller-a market could develop for perowskite, a calcium titanium trioxide for application in high-performance solar cells (Imran et al 2018).…”

Section: Other Uncertainties and Possible Substitution Processesmentioning

confidence: 99%

Volatility drivers on the metal market and exposure of producing countries

Renner

Wellmer

2019

Miner Econ

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The paper focuses on minor metals and coupled elements and aspires to understand individual incidents of imbalance on the mineral markets during the last 100 years and gain insight into the acting dynamics-those dynamics are commodity-specific but remain largely unchanged in their nature to date-and to identify the factors in play. The conclusions allow for a critical analysis of the widespread security-of-supply narrative of industrialized countries. They point at a market that is mostly a buyers' market, in which prices and their volatility are largely dictated by shifting demand patterns and much less by supply constraints. Neither high country concentration nor poor governance seem to have a substantial or lasting impact on market balance. Short-term market imbalances are generally neutralized by a dynamic reaction on the demand side via substitution, efficiency gains or technological change. The paper also assesses the impact of those quickly shifting demand patterns and the related price volatilities on producing countries. It shows how mineral price volatilities can expose developing countries' economies to significant economic risk, if their economy is heavily dependent on mineral production. Two cases that illustrate country exposure are explored in detail-the saltpeter crisis in Chile and the tin crisis in Bolivia. Both led to state bankruptcy. The paper concludes with an attempt to quantify economic exposure of producing countries to price volatilities of specific metals and suggests policies that adapt to the characteristic challenges of highly volatile demand.

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High-Performance Bifacial Perovskite/Silicon Double-Tandem Solar Cell

Cited by 17 publications

References 27 publications

Perovskite/Silicon Tandem Solar Cells: Effect of Luminescent Coupling and Bifaciality

Perovskite/Silicon Tandem Solar Cells: Effect of Luminescent Coupling and Bifaciality

Light‐Soak Stable Semitransparent and Bifacial Perovskite Solar Cells for Single‐Junction and Tandem Architectures

Volatility drivers on the metal market and exposure of producing countries

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