Large-Area 23%-Efficient Monolithic Perovskite/Homojunction-Silicon Tandem Solar Cell with Enhanced UV Stability Using Down-Shifting Material

Zheng, Jianghui; Mehrvarz, Hamid; Liao, Chwenhaw; Bing, Jueming; Cui, Xin; Li, Yang; Gonçales, Vinícius R.; Lau, Cho Fai Jonathan; Lee, Da Seul; Li, Yong; Zhang, Meng; Kim, Jin-Cheol; Cho, Yongyoon; Granados, Laura; Tang, Shi; Chen, Chao; Huang, Shujuan; Ho‐Baillie, Anita

doi:10.1021/acsenergylett.9b01783

Cited by 101 publications

(72 citation statements)

References 59 publications

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“…To date, the most efficient perovskite‐based tandem solar cells have been realized using PSCs on top of low‐bandgap c‐Si [ 6,18,21,23,25,34–42,43 ] or thin‐film CIGS ( E g ≈ 1.0–1.2 eV) [ 24,44–49 ] solar cells. [ 4,19,20,50 ] Record PCEs of up to 29.1% (perovskite/c‐Si, 2T), [ 6 ] 27.7% (perovskite/c‐Si, 4T), [ 43,51 ] 23.3% (perovskite/CIGS, 2T), [ 48 ] and 25.9% (perovskite/CIGS, 4T) [ 45 ] have been reported for the different architectures and configurations.…”

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

137

122

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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.

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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

137

122

View full text Add to dashboard Cite

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“…The development of tandem device can advance existing technologies and enable versatile exploitation of solar materials. For instance, wide bandgap solar cell coupling with low bandgap silicon or Cu 2 (In,Ga)Se 2 (CIGS) solar cells has been considered as a promising approach to upgrading the well‐established solar technologies . In attempt to achieve low‐cost solar cell applications, tandem solar cells based on emerging materials have also been used, such as those based on polymer–amorphous silicon, organic‐quantum dots hybrid tandem solar cells .…”

Section: Photovoltaic Parameters Of Semitransparent Sb2s3 Cells Withmentioning

confidence: 99%

All Antimony Chalcogenide Tandem Solar Cell

et al. 2020

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A proof‐of‐concept tandem solar cell using Sb2S3 and Sb2Se3 as top and bottom cell absorber materials is demonstrated. The bandgaps of Sb2S3 and Sb2Se3 are 1.74 and 1.22 eV, perfectly satisfying the requirement of tandem solar cells. The application of few‐layer graphene enables high transmittance and excellent interfacial contact in the top subcell. By controlling the thickness of the top cell for maximizing the spectral application, the tandem device delivers a power conversion efficiency of 7.93%, which outperforms the individually optimized top cell (5.58%) and bottom cell (6.50%). Mechanistical investigation shows that the tandem device is able to make up voltage loss in the subcells, which is a critical concern in the current antimony chalcogenide solar cells. This study provides an alternative approach to enhancing the energy conversion efficiency of antimony selenosulfide.

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“…[101] Therefore, the recombination layer exhibits high lateral conductivity, which is associated with shunt pathways. [102,103] As TCO conductivity depends on film thickness and doping concentration, it is important to trade off these two parameters to suppress parasitic absorption by FCA in the TCO film while achieving high conductivity. [45] On the other hand, a TCO layer thickness of several tens of nanometers is sufficient to protect the bottom subcell from damage during the fabrication of the top subcell.…”

Section: Interconnection Layer In Hybrid Tandemsmentioning

confidence: 99%

“…The interlayer-free hybrid tandem was further developed using perovskite absorbing layer improvement and light management to increase PCE to 23.1% with V oc = 1732 mV, J sc = 16.5 mA cm −2 , and FF = 81% for an area of 4 cm 2 . [103,117] Shen et al revealed that TiO 2 deposited by ALD onto p-type Si exhibits a highly ohmic contact to enable the operation of an efficient tandem cell. [118] Subsequently, these authors demonstrated an interlayerfree design with the perovskite layer directly deposited on top of the front emitter of poly-Si and commercial homojunction Si without an additional junction layer.…”

Section: In Situ Recombination Junctionmentioning

confidence: 99%

Recent Progress in Interconnection Layer for Hybrid Photovoltaic Tandems

Park

Lee

et al. 2020

Advanced Materials

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larger acceptance owing to their decreasing cost. However, Si cells feature power conversion efficiencies (PCEs) close to the maximum practically achievable value (29.4% for crystalline Si solar cells), which makes it difficult to further reduce the levelized cost of electricity by decreasing the power output-to-cost ratio. [7,8] The most straightforward solution to this problem is to hybridize multiple semiconductor layers in a tandem architecture for absorbing the different wavelengths of the solar spectrum using different solar cell technologies. [9-12] As proven by a theoretical tandem cell efficiency of ≈46%, [13] Si solar cells with a bandgap of 1.1 eV have been regarded as potential bottom subcells of hybrid tandems, additionally offering the benefits of mass production suitability owing to well-organized production lines and global supply chains. [13,14] However, Sibased hybrid tandem solar cells configured with cost-effective solar cell technologies, including dye-sensitized solar cell (DSSC) and organic photovoltaics (OPV), have far lower efficiencies than single-junction Si solar cells, predominantly because of the insufficient compatibility of the employed materials with Si solar cells. [15-19] Metal halide perovskite-based solar cells have attracted significant attention in recent years because of their potential to be processed at low cost, high efficiencies, excellent optoelectronic properties, and tunable bandgap. They have therefore considered as prospective components of hybrid tandems. [20] Previous studies on the fundamental working principle of the hydrogenated amorphous Si (a-Si:H)/a-Si:H tandem and related validation by empirical investigations show the feasibility of combining different solar cell technologies, [6,21-23] as exemplified by the pairing of high-bandgap perovskite subcells with low-bandgap Si subcells or the assembly of dual perovskitebased tandem solar cells exploiting perovskite bandgap tunability. [14,24-26] To date, considerable effort has been directed at the development of wide-bandgap perovskite solar cells (PSCs) (1.65-1.8 eV) for hybrid tandem applications, [27,28] and remarkable progress (i.e., a high open-circuit voltage (V oc) of 1.31 V with a wide bandgap of 1.72 eV (>90% of the Shockley-Queisser limit)) has been achieved. [29] Currently, researchers aim to realize perovskite-based hybrid tandem solar cells with PCEs of 30%. Nonetheless, considerable electrical property and fabrication process adjustments are required to integrate singlejunction perovskites into the hybrid tandem architecture. The introduction of an intermediate layer to bridge different solar Hybrid tandem solar cells offer the benefits of low cost and full solar spectrum utilization. Among the hybrid tandem structures explored to date, the most popular ones have four (simple stacking design) or two (terminal/tunneling layer addition design) terminal electrodes. Although the latter design is more cost-effective than the former, its widespread application is hindered by the difficulty of preparing...

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Large-Area 23%-Efficient Monolithic Perovskite/Homojunction-Silicon Tandem Solar Cell with Enhanced UV Stability Using Down-Shifting Material

Cited by 101 publications

References 59 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

All Antimony Chalcogenide Tandem Solar Cell

Recent Progress in Interconnection Layer for Hybrid Photovoltaic Tandems

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