Transparent electrode for monolithic perovskite/silicon-heterojunction two-terminal tandem solar cells

Zhu, Shijie; Yao, Xin; Ren, Qianshang; Zheng, Cuicui; Li, Shengzhe; Tong, Yupeng; Shi, Bowen; Guo, Sheng; Fan, Lin; Ren, Huizhi; Wei, Changchun; Li, Baozhang; Ding, Yi; Huang, Qian; Li, YueLong; Zhao, Ying; Zhang, Xiaodan

doi:10.1016/j.nanoen.2017.12.043

Cited by 75 publications

(43 citation statements)

References 41 publications

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“…25,26,[28][29][30][31][32][33][34][35][36][37][38][39] With the improvement in WBG perovskite cells, the efficiencies of perovskite/silicon monolithic tandem solar cells have increased from 13.7% in 2015 to 23.6% in 2017, and to 25.2% in June 2018 (Table S1). [5][6][7][8][9][10][11][12][13][14][15][16][17][18] Optical loss, fill factor loss, current mismatch, and open-circuit voltage (V oc ) deficit (E g /q À V oc ) are the main issues currently limiting the PCE of these perovskite/silicon tandem devices. Several technologies have been explored to reduce the reflection-and parasitic-absorption-induced optical losses, such as antireflective foils, 12 nanocrystalline silicon recombination junctions, 13 silicon-nanoparticle rear reflectors, 11 and double-side-textured silicon bottom cells.…”

Section: Context and Scalementioning

confidence: 99%

“…Due to their solution processability, bandgap tunability, and high photovoltaic performance without epitaxial growth that requires lattice matching, organicinorganic halide perovskites have distinguished themselves from other photovoltaic semiconductors as suitable tandem partners for silicon. [5][6][7][8][9][10][11][12][13][14][15][16][17][18] Recent…”

Section: Introductionmentioning

confidence: 99%

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Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%

Chen

Kong

et al. 2019

Joule

368

319

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Grain engineering through combined MACl and MAH 2 PO 2 additives in perovskite precursors improves the photovoltaic performance of perovskite/silicon tandem cells. MACl increases the grain size of wide-bandgap perovskite films and also produces smooth films. MAH 2 PO 2 suppresses non-radiative recombination sites at grain boundaries. The synergetic effects of MACl and MAH 2 PO 2 further promote grain growth and prolong the carrier recombination lifetime. This enables a power conversion efficiency of 25.4% for a perovskite/silicon tandem device. SUMMARYOrganic-inorganic halide perovskites are promising semiconductors to mate with silicon in tandem photovoltaic cells due to their solution processability and tunable complementary bandgaps. Herein, we show that a combination of two additives, MACl and MAH 2 PO 2 , in the perovskite precursor can significantly improve the grain morphology of wide-bandgap (1.64-1.70 eV) perovskite films, resulting in solar cells with increased photocurrent while reducing the open-circuit voltage deficit to 0.49-0.51 V. The addition of MACl enlarges the grain size, while MAH 2 PO 2 reduces non-radiative recombination through passivation of the perovskite grain boundaries, with good synergy of functions from MACl and MAH 2 PO 2 . Matching the photocurrent between the two subcells in a perovskite/silicon monolithic tandem solar cell by using a bandgap of 1.64 eV for the top cell results in a high tandem V oc of 1.80 V and improved power conversion efficiency of 25.4%.

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Section: Context and Scalementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%

Chen

Kong

et al. 2019

Joule

368

319

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“…To accomplish this goal, however, the subcell absorption layer must meet the requirements of low losses and appropriate bandgap. In the past few years, perovskite solar cells have been extensively explored as the top cell for the fabrication of tandem or triple‐junction solar cells . Typically, the CsPbX 3 QDs are considered as an ideal top cell candidate for multijunction solar cells, because of the tunable bandgap between 1.75 and 2.13 eV as well as the open‐circuit voltage approximately exceeding 85% of the Shockley‐Queisser limit.…”

Section: Photoelectrochemical Applications Of Ihpqdsmentioning

confidence: 99%

Recent Progress and Development in Inorganic Halide Perovskite Quantum Dots for Photoelectrochemical Applications

Liang

Chen

Yao

et al. 2019

Small

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130

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Inorganic halide perovskite quantum dots (IHPQDs) have recently emerged as a new class of optoelectronic nanomaterials that can outperform the existing hybrid organometallic halide perovskite (OHP), II–VI and III–V groups semiconductor nanocrystals, mainly due to their relatively high stability, excellent photophysical properties, and promising applications in wide‐ranging and diverse fields. In particular, IHPQDs have attracted much recent attention in the field of photoelectrochemistry, with the potential to harness their superb optical and charge transport properties as well as spectacular characteristics of quantum confinement effect for opening up new opportunities in next‐generation photoelectrochemical (PEC) systems. Over the past few years, numerous efforts have been made to design and prepare IHPQD‐based materials for a wide range of applications in photoelectrochemistry, ranging from photocatalytic degradation, photocatalytic CO2 reduction and PEC sensing, to photovoltaic devices. In this review, the recent advances in the development of IHPQD‐based materials are summarized from the standpoint of photoelectrochemistry. The prospects and further developments of IHPQDs in this exciting field are also discussed.

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“…In a monolithic perovskite/silicon TSC, the first critical step is to replace the original opaque metal electrode with a highly transparent and conductive electrode. The most usually applied TCEs for TSCs are those formed by transparent conducting oxides (TCOs), typically ITO, IZO, AZO, hydrogenated indium oxide (IO:H) (Figure a), etc. IO:H electrodes have fairly minor parasitic absorption, while the additional annealing process at 150–200 °C may be detrimental to the perovskite underlayer .…”

Section: Optical Loss Analysismentioning

confidence: 99%

“…The theoretical limit of subcell current matching is supposed to be approximately half that of a single‐junction silicon cell (≈ 43.3 mA cm −2 ) . However, at present J SC is still limited to the range of 15–18 mA cm −2 . Bush et al have reported a monolithic perovskite/silicon heterojunction (SHJ) TSC with a total J SC of 37.4 mA cm −2 .…”

Section: Introductionmentioning

confidence: 99%

Light Management in Monolithic Perovskite/Silicon Tandem Solar Cells

Zhao

Zhang

2019

Solar RRL

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Perovskite/silicon tandem solar cells (TSCs), especially two-terminal, with a record efficiency of 28% already realized, present great potential as low-cost and efficient substitutes for dominant silicon photovoltaics. Achieving efficiencies exceeding 30% is quite realistic, as indicated by extensive optical simulations. Super light management in monolithic perovskite/silicon TSCs is one of the prerequisites to make this a reality. In this Review, various forms of optical losses, such as reflection loss, parasitic absorption, and current mismatch, are analyzed systematically to provide a better understanding of the performance of perovskite/silicon TSCs. Particularly, a simple refractive index matching rule derived from the Fresnel equation is proposed as a basis for material selection and device design. Meanwhile, an overview of the current strategies and challenges in monolithic perovskite/silicon TSCs is provided, comprising bandgap engineering of perovskites and light trapping methods, aiming to provide guidance for further improvement of tandem devices.

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Transparent electrode for monolithic perovskite/silicon-heterojunction two-terminal tandem solar cells

Cited by 75 publications

References 41 publications

Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%

Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%

Recent Progress and Development in Inorganic Halide Perovskite Quantum Dots for Photoelectrochemical Applications

Light Management in Monolithic Perovskite/Silicon Tandem Solar Cells

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