Journal ArticleDOI
All-inorganic perovskite quantum dots as light-harvesting, interfacial, and light-converting layers toward solar cells
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TLDR
In this article, the authors focus on the latest development of all-inorganic perovskite quantum dots (AIPQDSCs) and analyze the current bottlenecks they are facing.Abstract:
Solution-processed colloidal lead halide perovskite quantum dots (QDs) are considered one of the promising candidates for next-generation photovoltaics (PVs) due to the excellent optoelectronic properties and low-cost synthetic process. In particular, all-inorganic perovskite (AIP) QDs exhibit better prospects due to their better stability. Although remarkable breakthroughs have been made in bulk perovskite solar cells (SCs), the AIP QD-based SCs (AIPQDSCs) are still on their way to catch up. A lot of reports have summarized the development of perovskite SCs, but few have focused on AIPQDSCs. In this review, we focus on the latest development of AIPQDSCs, and analyze the current bottlenecks they are facing. Also, various optimization means have been discussed to improve the performance of AIPQDSCs from two perspectives of QD materials and device structure, including compositional regulation, surface engineering, interface engineering, and optimization of the carrier transport layer. In addition, AIP QDs as converter for SCs are also presented. Since the stability of perovskite SCs is currently the most pressing issue, the device stability is also highlighted. In the end, a brief summary and perspectives are presented to look forward to the future development of AIPQDSCs.read more
Citations
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Journal ArticleDOI
CsPbBr3 quantum dots enhanced ZnO sensing to NO2 at room temperature
TL;DR: In this article , a gas sensor based on the composites of CsPbBr3 quantum dots (QDs) and ZnO microballs (MBs) was demonstrated for NO2 detection at room temperature.
Journal ArticleDOI
Lead Halide Perovskite Quantum Dots for Photovoltaics and Photocatalysis: A Review
TL;DR: In this article , a review of PQD solar cells and photocatalytic conversion is presented, highlighting that the improvement of the efficiency from below 10% to beyond 16% in a matter of a few years has turned them into promising candidates for future SC applications.
Journal ArticleDOI
Cesium Lead Iodide Perovskites: Optically Active Crystal Phase Stability to Surface Engineering
Yixiong Wang,Hairong Zhao,Marek Piotrowski,Xiao Han,Zhongsheng Ge,Lizhuang Dong,Chengjie Wang,Sowjanya Krishna Pinisetty,Praveen Kumar Balguri,Anil Kumar Bandela,Udayabhaskararao Thumu +10 more
TL;DR: In this article , a review of surface and lattice engineering in CsPbI3-based perovskites is presented, highlighting the superiority of CspbII3 over other halide systems, stability, the factors leading to their phase transformations, and electronic band structure along with the important property of the defect tolerance nature.
Journal ArticleDOI
Enhancing oxygen/moisture resistance of quantum dots by short-chain, densely cross-linked silica glass network
TL;DR: Wang et al. as mentioned in this paper proposed a new QDs protection strategy by introducing short-chain silica precursors onto the QDs surface, so that a dense silica passivation layer could be formed onto QDs nanoparticles.
Journal ArticleDOI
Recent Progress on Boosting the Perovskite Film Quality of All-Inorganic Perovskite Solar Cells
TL;DR: In this paper , a review systematically summarizes additive engineering, solvent engineering, and interface engineering methods to promote the thin film property for a high power conversion efficiency (PCE) in recent years.
References
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Journal ArticleDOI
Size Tunable Cesium Antimony Chloride Perovskite Nanowires and Nanorods
Bapi Pradhan,Gundam Sandeep Kumar,Sumanta Sain,Amit Dalui,Uttam Kumar Ghorai,Swapan Kumar Pradhan,Somobrata Acharya +6 more
TL;DR: In this paper, a colloidal route was used to synthesize uniform Cs3Sb2Cl9 perovskite nanowires with lengths up to several microns.
Journal ArticleDOI
A comprehensive review of doping in perovskite nanocrystals/quantum dots: evolution of structure, electronics, optics, and light-emitting diodes
Leimeng Xu,Leimeng Xu,Shichen Yuan,Shichen Yuan,Haibo Zeng,Haibo Zeng,Jizhong Song,Jizhong Song +7 more
TL;DR: In this article, the effects of dopants on crystal structure, optical bandgaps, electronic structure, photoluminescence, carrier dynamics and the application of doped perovskite nanocystals/QDs in LEDs are discussed.
Journal ArticleDOI
Minimizing optical losses in monolithic perovskite/c-Si tandem solar cells with a flat top cell.
Rudi Santbergen,Ryota Mishima,Tomomi Meguro,Masashi Hino,Hisashi Uzu,Johan Blanker,Kenji Yamamoto,Miro Zeman +7 more
TL;DR: Optical simulations show that, even with a flat top cell, the monolithic perovskite/c-Si tandem device can reach a matched photocurrent density as high as 19.57 mA/cm2.
Journal ArticleDOI
Cesium–lead based inorganic perovskite quantum-dots as interfacial layer for highly stable perovskite solar cells with exceeding 21% efficiency
TL;DR: In this paper, the authors demonstrated the incorporation of ultra-thin interfacial layer of inorganic CsPbBr1.85I1.15 perovskite quantum-dots (PQDs) that can effectively passivate defects at or near to the perov-hole transport material (HTM) interface, significantly suppressing interfacial recombination.
Journal ArticleDOI
Charge Transport between Coupling Colloidal Perovskite Quantum Dots Assisted by Functional Conjugated Ligands.
Jinfei Dai,Jun Xi,Jun Xi,Lu Li,JingFeng Zhao,Yifei Shi,Wenwen Zhang,Chenxin Ran,Bo Jiao,Xun Hou,Xin-Hua Duan,Zhaoxin Wu,Zhaoxin Wu +12 more
TL;DR: Owing to electron cloud overlapping and the delocalization effect of conjugated molecules, the conductivity and carrier mobility of PPA-QDs films increased almost 22 times over that of OA-QD films without compromising colloidal stability and photoluminescence.