Halide Perovskite Photovoltaics: Background, Status, and Future Prospects

Chemical Reviews, Год журнала: 2019, Номер 119(5), С. 3036 - 3103

Опубликована: Март 1, 2019

The photovoltaics of organic–inorganic lead halide perovskite materials have shown rapid improvements in solar cell performance, surpassing the top efficiency semiconductor compounds such as CdTe and CIGS (copper indium gallium selenide) used cells just about a decade. Perovskite preparation via simple inexpensive solution processes demonstrates immense potential this thin-film technology to become low-cost alternative presently commercially available photovoltaic technologies. Significant developments almost all aspects discoveries some fascinating properties hybrid perovskites been made recently. This Review describes fundamentals, recent research progress, present status, our views on future prospects perovskite-based photovoltaics, with discussions focused strategies improve both intrinsic extrinsic (environmental) stabilities high-efficiency devices. Strategies challenges regarding compositional engineering structure are discussed, including potentials for developing all-inorganic lead-free materials. Looking at latest cutting-edge research, optoelectronic devices, non-photovoltaic applications X-ray detectors image sensing devices industrialization, described. In addition aforementioned major topics, we also review, background, encounter first application, which should inspire young researchers chemistry physics identify work challenging interdisciplinary problems through exchanges between academia industry.

Язык: Английский

---

Monolithic all-perovskite tandem solar cells with 24.8% efficiency exploiting comproportionation to suppress Sn(ii) oxidation in precursor ink

Nature Energy, Год журнала: 2019, Номер 4(10), С. 864 - 873

Опубликована: Сен. 23, 2019

Язык: Английский

---

Opportunities and challenges for tandem solar cells using metal halide perovskite semiconductors

Nature Energy, Год журнала: 2018, Номер 3(10), С. 828 - 838

Опубликована: Июль 6, 2018

Язык: Английский

---

Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells

Science, Год журнала: 2019, Номер 364(6439), С. 475 - 479

Опубликована: Апрель 19, 2019

Efficient all-perovskite tandem cells Organic-inorganic perovskite films can boost the output of conventional silicon solar in geometries by utilizing more light at blue end spectrum. Tandem that use only have been less successful because lack a suitable material with low bandgap replace silicon. Tong et al. report mixed tin-lead organic-inorganic containing small fraction guanidinium thiocyanate has bandgap, long charge-carrier lifetime, and efficiencies around 25%. Science , this issue p. 475

Язык: Английский

---

Strain engineering in perovskite solar cells and its impacts on carrier dynamics

Nature Communications, Год журнала: 2019, Номер 10(1)

Опубликована: Фев. 18, 2019

The mixed halide perovskites have emerged as outstanding light absorbers for efficient solar cells. Unfortunately, it reveals inhomogeneity in these polycrystalline films due to composition separation, which leads local lattice mismatches and emergent residual strains consequently. Thus far, the understanding of their effects on photovoltaic device performance is absent. Herein we study evolution strain over by depth-dependent grazing incident X-ray diffraction measurements. We identify gradient distribution in-plane component perpendicular substrate. Moreover, reveal its impacts carrier dynamics corresponding cells, stemmed from induced energy bands bending perovskite absorber indicated first-principles calculations. Eventually, modulate status a controllable manner, enhanced PCEs up 20.7% (certified) devices via rational engineering.

Язык: Английский

---

Efficient two-terminal all-perovskite tandem solar cells enabled by high-quality low-bandgap absorber layers

Nature Energy, Год журнала: 2018, Номер 3(12), С. 1093 - 1100

Опубликована: Ноя. 19, 2018

Язык: Английский

---

“Unleaded” Perovskites: Status Quo and Future Prospects of Tin‐Based Perovskite Solar Cells

Advanced Materials, Год журнала: 2018, Номер 31(47)

Опубликована: Окт. 1, 2018

Abstract The tremendous interest focused on organic–inorganic halide perovskites since 2012 derives from their unique optical and electrical properties, which make them excellent photovoltaic materials. Pb‐based perovskite solar cells, in particular, currently stand at a record efficiency of ≈23%, fulfilling potential toward commercialization. However, because the toxicity concerns market prospects are hindered. In principle, Pb can be replaced with other less‐toxic, environmentally benign metals. Sn‐based thus far most promising alternative due to very similar perhaps even superior semiconductor characteristics. After years effort invested perovskites, sufficient breakthroughs have finally been achieved that next runners up perovskites. To help reader better understand nature properties systematically discussed. Recent progress focusing mainly film fabrication methods different device architectures, highlighting roadblocks opportunities for future work reviewed. Finally, brief overview mixed Sn/Pb‐based systems anomalous yet beneficial trends current challenges outlook

Язык: Английский

---

Mechanism of Tin Oxidation and Stabilization by Lead Substitution in Tin Halide Perovskites

ACS Energy Letters, Год журнала: 2017, Номер 2(9), С. 2159 - 2165

Опубликована: Авг. 24, 2017

The recent development of efficient binary tin- and lead-based metal halide perovskite solar cells has enabled the all-perovskite tandem cells, which offer a unique opportunity to deliver high performance at low cost. Tin perovskites, however, are prone oxidation, where Sn2+ cations oxidize Sn4+ upon air exposure. Here, we identify reaction products elucidate oxidation mechanism both ASnI3 ASn0.5Pb0.5I3 (where A can be made methylammonium, formamidinium, cesium, or combination these) perovskites find that substituting lead onto B site fundamentally changes tin-based make them more stable than would expected by simply considering decrease in tin content. This work provides guidelines for developing small band gap materials could used tandems.

Язык: Английский

---

Monolithic Perovskite Tandem Solar Cells: A Review of the Present Status and Advanced Characterization Methods Toward 30% Efficiency

Advanced Energy Materials, Год журнала: 2020, Номер 10(26)

Опубликована: Май 4, 2020

Abstract Tandem solar cells are the next step in photovoltaic (PV) evolution due to their higher power conversion efficiency (PCE) potential than currently dominating, but inherently limited, single‐junction cells. With emergence of metal halide perovskite absorber materials, fabrication highly efficient tandem cells, at a reasonable cost, can significantly impact future PV landscape. The perovskite‐based have already shown that they convert light more efficiently standalone sub‐cells. However, reach PCEs over 30%, several challenges be overcome and understanding this fascinating technology has broadened. In review, main scientific engineering field presented, alongside discussion current status three technologies: perovskite/silicon, perovskite/CIGS, perovskite/perovskite A summary advanced structural, electrical, optical, radiative, electronic characterization methods as well simulations being utilized for is presented. findings summarized strength techniques gain deeper knowledge further performance improvement assessed. Finally, PCE different experimental theoretical limits compared with an aim shed on path towards overcoming 30% threshold all herein reviewed technologies.

Язык: Английский

---

Record Open‐Circuit Voltage Wide‐Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure

Advanced Energy Materials, Год журнала: 2019, Номер 9(21)

Опубликована: Апрель 24, 2019

Abstract In this work, the authors realize stable and highly efficient wide‐bandgap perovskite solar cells that promise high power conversion efficiencies (PCE) are likely to play a key role in next generation multi‐junction photovoltaics (PV). This work reports on (≈1.72 eV) exhibiting PCEs of up 19.4% remarkably open‐circuit voltage ( V OC ) 1.31 V. The ‐to‐bandgap ratio is highest reported for organic−inorganic hybrid also exceeds 90% theoretical maximum, defined by Shockley–Queisser limit. advance based creating 2D/3D heterostructure. By spin coating n ‐butylammonium bromide double‐cation absorber layer, thin 2D Ruddlesden–Popper layer intermediate phases formed, which mitigates nonradiative recombination layer. As result, enhanced 80 mV.

Язык: Английский

---