Balancing electrical and optical losses for efficient 4-terminal Si–perovskite solar cells with solution processed percolation electrodes

Quiroz, César Omar Ramírez; Shen, Yilei; Salvador, Michaël; Forberich, Karen; Schrenker, Nadine; Spyropoulos, George D.; Heumüller, Thomas; Wilkinson, Benjamin; Kirchartz, Thomas; Spiecker, Erdmann; Verlinden, Pierre J.; Zhang, Xueling; Green, Martin A.; Ho‐Baillie, Anita; Brabec, Christoph J.

doi:10.1039/c7ta10945h

Cited by 105 publications

(50 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The strong contrast between simulated (≈33%) and experimental tandem device performance is mainly due to various optical and electrical losses that reduce the PCE of today's prototype tandem solar cells. [ 4,10,17,52,53 ] These losses encompass: i) optical losses, that is, reflection at the various interfaces [ 17 ] and reduced transmission of the top cell due to parasitic absorption in the near‐infrared (NIR) region within the layers; [ 49,54,55 ] and ii) electrical losses such as recombination losses, for example, non‐radiative trap‐assisted recombination, and imperfect contact properties. [ 18,19,53,55 ]…”

Section: Introductionmentioning

confidence: 99%

2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four‐Terminal Tandems with Silicon and CIGS

Gharibzadeh

Hossain

Faßl

et al. 2020

Adv Funct Materials

140

122

View full text Add to dashboard Cite

Wide-bandgap perovskite solar cells (PSCs) with optimal bandgap (E g ) and high power conversion efficiency (PCE) are key to high-performance perovskite-based tandem photovoltaics. A 2D/3D perovskite heterostructure passivation is employed for double-cation wide-bandgap PSCs with engineered bandgap (1.65 eV ≤ E g ≤ 1.85 eV), which results in improved stabilized PCEs and a strong enhancement in open-circuit voltages of around 45 mV compared to reference devices for all investigated bandgaps. Making use of this strategy, semitransparent PSCs with engineered bandgap are developed, which show stabilized PCEs of up to 25.7% and 25.0% in fourterminal perovskite/c-Si and perovskite/CIGS tandem solar cells, respectively. Moreover, comparable tandem PCEs are observed for a broad range of perovskite bandgaps. For the first time, the robustness of the four-terminal tandem configuration with respect to variations in the perovskite bandgap for two state-of-the-art bottom solar cells is experimentally validated.

show abstract

Section: Introductionmentioning

confidence: 99%

2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four‐Terminal Tandems with Silicon and CIGS

Gharibzadeh

Hossain

Faßl

et al. 2020

Adv Funct Materials

140

122

View full text Add to dashboard Cite

show abstract

“…Halide perovskites have a great potential in multi‐junction structures due to ease of tunability (simple compositional engineering) and broad range of possible bandgaps this class of perovskites can adopt. There have been significant efforts into marrying perovskites with existing commercial technologies, particularly the research work on Si–perovskite tandems has been very successful …”

Section: Maturity Pointmentioning

confidence: 99%

Industrial Opportunities and Challenges for Perovskite Photovoltaic Technology

2019

View full text Add to dashboard Cite

Perovskite solar cell technology is fast approaching its first commercial deployment, with the 10‐year mark since the first research having passed recently. Commercial entrance seems very tangible, but there are a number of remaining challenges related to various economic and technical factors. Conventional photovoltaic markets, such as utility scale photovoltaics, are quite rigid and very demanding for a new entrant. Perovskites offer several new value propositions, which offer monetization prospects in the near future, if properly used. In particular, functionalities such as flexibility, high specific power, and good low‐light performance enable new applications and broadening of the conventional PV usage. The specific cases of internet of things and building‐integrated photovoltaics are discussed, and market opportunities are analyzed. Technology incubation with simultaneous market presence in emerging applications can provide essential economic stability and time for the technology to develop into its full potential. Opportunities in high‐value markets and massive‐scale deployment are also addressed, with the analysis of potentially disruptive offerings being promised by perovskite photovoltaic technology.

show abstract

“…Oxford PV recently reported a record efficiency of 27.3% [16]. Mechanically stacked four-terminal tandems have demonstrated efficiencies up to 26.9% [17,18]. An efficiency as high as 28.0% has been demonstrated for a device based on an optical splitting system [19].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Three-Terminal Perovskite/Silicon Tandem Solar Cells

Santbergen

Uzu

Yamamoto

et al. 2019

IEEE J. Photovoltaics

View full text Add to dashboard Cite

We use simulations to optimize perovskite / silicon tandem solar cells in a novel three-terminal configuration, with one terminal at the front and two at the rear. We consider configurations in which the top cell has either the inverted or the same polarity as the bottom cell. Our goal is to minimize the optical losses, to compare the performance of both configurations and to determine the realistically achievable efficiency. Optical simulations show that if the hole transporting material is in front of the perovskite it gives rise to parasitic absorption losses. If it is behind the perovskite, these losses are avoided, however at the cost of increased reflection losses. We systematically minimize these reflection losses. This increases the tandem's total implied photocurrent density from 34.4 to 41.1 mA/cm 2 . To determine the corresponding power conversion efficiency of these three-terminal tandems, electrical circuit simulations are performed based on existing 22.7% efficient perovskite and 24.9% efficient silicon cells. These simulations show that tandem efficiencies up to 32.0% can be obtained.

show abstract

Balancing electrical and optical losses for efficient 4-terminal Si–perovskite solar cells with solution processed percolation electrodes

Abstract: We present measured imputed efficiencies for 4-terminal perovskite–silicon solar cells of: 26.7% and 25.2% for PERL–perovskite and IBC–perovskite, respectively.

Cited by 105 publications

References 45 publications

2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four‐Terminal Tandems with Silicon and CIGS

2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four‐Terminal Tandems with Silicon and CIGS

Industrial Opportunities and Challenges for Perovskite Photovoltaic Technology

Optimization of Three-Terminal Perovskite/Silicon Tandem Solar Cells

Contact Info

Product

Resources

About