Colloidal Quantum Dot Solar Cells: Progressive Deposition Techniques and Future Prospects on Large‐Area Fabrication DOI
Qian Zhao, Rui Han, Ashley R. Marshall

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(17)

Published: Jan. 13, 2022

Colloidally grown nanosized semiconductors yield extremely high-quality optoelectronic materials. Many examples have pointed to near perfect photoluminescence quantum yields, allowing for technology-leading materials such as high purity color centers in display technology. Furthermore, because of chemical yield, and improved understanding the surfaces, these materials, particularly colloidal dots (QDs) can also be ideal candidates other applications. Given urgent necessity toward carbon neutrality, electricity from solar photovoltaics will play a large role power generation sector. QDs are developed shown dramatic improvements over past 15 years photoactive with various innovative deposition properties which lead exceptionally low-cost high-performance devices. Once key issues related charge transport optically thick arrays addressed, QD-based photovoltaic technology become better candidate practical application. In this article, authors show how possibilities different techniques bring cells industrial level discuss challenges perovskite QD particular, achieve large-area fabrication further advancing solve pivotal energy environmental issues.

Language: Английский

Controlling the nucleation and growth kinetics of lead halide perovskite quantum dots DOI Open Access
Quinten A. Akkerman, Tan Nguyen, Simon C. Boehme

et al.

Science, Journal Year: 2022, Volume and Issue: 377(6613), P. 1406 - 1412

Published: Sept. 8, 2022

Colloidal lead halide perovskite nanocrystals are of interest as photoluminescent quantum dots (QDs) whose properties depend on the size and shape. They normally synthesized subsecond time scales through hard-to-control ionic metathesis reactions. We report a room-temperature synthesis monodisperse, isolable, spheroidal APbBr3 QDs ("A" indicates cesium, formamidinium, methylammonium) that tunable from 3 to >13 nanometers. The kinetics both nucleation growth temporally separated substantially slowed down by intricate equilibrium between precursor (PbBr2) A[PbBr3] solute, with latter serving monomer. all these compositions exhibit up four excitonic transitions in their linear absorption spectra, we demonstrate size-dependent confinement energy for is independent A-site cation.

Language: Английский

Citations

273
Colloidal Metal‐Halide Perovskite Nanoplatelets: Thickness‐Controlled Synthesis, Properties, and Application in Light‐Emitting Diodes DOI
Clara Otero‐Martínez, Junzhi Ye, Jooyoung Sung

et al.

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(10)

Published: Nov. 14, 2021

Abstract Colloidal metal‐halide perovskite nanocrystals (MHP NCs) are gaining significant attention for a wide range of optoelectronics applications owing to their exciting properties, such as defect tolerance, near‐unity photoluminescence quantum yield, and tunable emission across the entire visible wavelength range. Although optical properties MHP NCs easily through halide composition, they suffer from light‐induced phase segregation that limits use in devices. However, MHPs can be synthesized form colloidal nanoplatelets (NPls) with monolayer (ML)‐level thickness control, exhibiting strong confinement effects, thus enabling by controlling bromide or iodide‐based lead‐halide NPls. In addition, NPls exhibit narrow peaks, have high exciton binding energies, higher fraction radiative recombination compared bulk counterparts, making them ideal candidates light‐emitting diodes (LEDs). This review discusses state‐of‐the‐art NPls: synthetic routes, thickness‐controlled synthesis both organic–inorganic hybrid all‐inorganic NPls, linear nonlinear (including charge‐carrier dynamics), performance LEDs. Furthermore, challenges associated synthesis, environmental thermal stability, application efficient LEDs discussed.

Language: Английский

Citations

186
Ligand Chemistry of Inorganic Lead Halide Perovskite Nanocrystals DOI Creative Commons

Nadesh Fiuza‐Maneiro,

Kun Sun, Iago López‐Fernández

et al.

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(2), P. 1152 - 1191

Published: Jan. 26, 2023

Lead halide perovskite nanocrystals (LHP NCs) have emerged as next-generation semiconductor materials with outstanding optical and optoelectronic properties. Because of the high surface-to-volume ratio, performance colloidal stability LHP NCs largely depend on their surface chemistry, especially ligands termination. On one hand, capping improve luminescence; other hand highly dynamic binding nature is detrimental to photoluminescence NCs. In addition, functionalization desired molecules induces new functionalities such chirality, light harvesting, triplet sensitization through energy/electron transfer or use X-ray detectors. this review, we present current understanding an atomic view chemistry NCs, including crystal termination, vacancies, different types ligands. Furthermore, discuss ligand-induced functionalities, photocatalysis chirality.

Language: Английский

Citations

186
Small-angle X-ray and neutron scattering DOI

Cy M. Jeffries,

Ján Ilavský, Anne Martel

et al.

Nature Reviews Methods Primers, Journal Year: 2021, Volume and Issue: 1(1)

Published: Oct. 12, 2021

Language: Английский

Citations

148
Rational Design of Metal Halide Perovskite Nanocrystals for Photocatalytic CO2 Reduction: Recent Advances, Challenges, and Prospects DOI
Jin Wang, Yangyi Shi, Yuhan Wang

et al.

ACS Energy Letters, Journal Year: 2022, Volume and Issue: 7(6), P. 2043 - 2059

Published: May 23, 2022

Metal halide perovskite nanocrystals (MHP NCs) have attracted much scientific interest in photocatalysis. Various types of MHP photocatalysts been intensively explored photocatalytic CO2 reduction the past few years. However, some key issues, such as severe charge recombination, low stability, and origin products, created bottlenecks developing photocatalysts. Therefore, rational design MHPs is worthwhile to deepen our understanding above issues develop efficient This Focus Review highlights recent advances regarding principles toward reduction. modification strategies are clarified, an outlook on future challenges prospects also provided point out possible research directions It anticipated that this can provide guidance MHP-based help uncover common encountered by community when studying

Language: Английский

Citations

147
Lead‐Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospective DOI Creative Commons
Iago López‐Fernández, Donato Valli,

Chunyun Wang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(6)

Published: Oct. 27, 2023

Abstract Halide perovskites, in the form of thin films and colloidal nanocrystals, have recently taken semiconductor optoelectronics research by storm, emerged as promising candidates for high‐performance solar cells, light‐emitting diodes (LEDs), lasers, photodetectors, radiation detectors. The impressive optical optoelectronic properties, along with rapid increase efficiencies cells LEDs, greatly attracted researchers across many disciplines. However, most advances made so far terms preparation (colloidal nanocrystals films), devices highest are based on Pb‐based halide which raised concerns over their commercialization due to toxicity Pb. This has triggered search lower‐toxicity Pb‐free perovskites led significant progress last few years. In this roadmap review, different expertise joined together summarize latest progress, outstanding challenges, future directions perovskite regarding synthesis, spectroscopy, devices, guide currently working area well those that will join field future.

Language: Английский

Citations

141
Oleic acid/oleylamine ligand pair: a versatile combination in the synthesis of colloidal nanoparticles DOI
Stefanos Mourdikoudis, Melita Menelaou,

Nadesh Fiuza‐Maneiro

et al.

Nanoscale Horizons, Journal Year: 2022, Volume and Issue: 7(9), P. 941 - 1015

Published: Jan. 1, 2022

Oleic acid and oleylamine are added in a solution containing suitable precursors they can often form complexes with metal ions. These may be thermally decomposed to yield ligand-coated nanoparticles tendency assemblies.

Language: Английский

Citations

139
Industry outlook of perovskite quantum dots for display applications DOI

Xian‐gang Wu,

Honglei Ji,

Xiaolin Yan

et al.

Nature Nanotechnology, Journal Year: 2022, Volume and Issue: 17(8), P. 813 - 816

Published: July 22, 2022

Language: Английский

Citations

139
What Happens When Halide Perovskites Meet with Water? DOI
Shangjun Cheng, Haizheng Zhong

The Journal of Physical Chemistry Letters, Journal Year: 2022, Volume and Issue: 13(10), P. 2281 - 2290

Published: March 4, 2022

Halide perovskites are considered to be next-generation semiconductor materials with bright prospects advance the technology of photonics and optoelectronics. Because intrinsic ionic feature, interactions between water induce serious stability issues, which has been one fundamental problems hindering practical application perovskites. The degradation halide upon exposure intensively studied, resulting in chemical insights into key processes, including hydration, phase transformation, decomposition, dissolution. In this Perspective, we try illustrate what happens when meet water. We summarize research progress regarding understanding these processes discuss principle strategy design toward improved against addition instability-related interactions, also aqueous solution perovskite precursors for fabricating perovskite-based functional materials. Hopefully, Perspective can inspire more studies on water, such as spectroscopy simulation, crystal structure material characterizations, chemistry crystallization.

Language: Английский

Citations

133
Sb3+–Er3+‐Codoped Cs2NaInCl6for Emitting Blue and Short‐Wave Infrared Radiation DOI
Sajid Saikia, Aprajita Joshi, Habibul Arfin

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(32)

Published: April 11, 2022

Cs2 NaInCl6 double perovskite is stable, environmentally benign and easy to prepare. But it has a wide band gap (5.1 eV), therefore, does not show optical optoelectronic properties in the visible short-wave infrared (SWIR) region. Here we introduce such functionalities by codoping Sb3+ (s-electron doping) Er3+ (f-electron ions. doping introduces optically allowed 5s2→ 5s1 5p1 electronic absorption at sub-band level, which then emits blue photoluminescence with ≈93 % quantum yield. f-f of parity forbidden. Codoping -Er3+ , leads transfer excitation energy from yielding SWIR emission 1540 nm. Temperature (6 300 K) dependent measurements elucidate mechanism. A phosphor converted light emitting diode (pc-LED) fabricated using codoped sample stable radiation over prolonged (84 hours) operation 5.1 V.

Language: Английский

Citations

123