Explanipedia

Reduced Self-Doping of Perovskites Induced by Short Annealing for Efficient Solar Modules Open

Yehao Deng, Zhenyi Ni, Axel F. Palmstrom, Jingjing Zhao, Shuang Xu , et al. · 2025

Publisher Correction: Large electrostrictive response in lead halide perovskites Open

Bo Chen, Tao Li, Qingfeng Dong, Edoardo Mosconi, Jingfeng Song , et al. · 2025

Trapping lead in perovskite solar modules with abundant and low-cost cation-exchange resins Open

Shuo Chen, Yehao Deng, Gu H, Xu S, Shanshan Wang , et al. · 2024

One major concern for the commercialization of perovskite photovoltaic technology is the toxicity of lead from the water-soluble lead halide perovskites that can contaminate the environment. Here, we report an abundant, low-cost and chemic…

Scalable Fabrication of Efficient Perovskite Solar Modules on Flexible Glass Substrates Open

Xiaohu Dai, Yehao Deng, Van Brackle, Shih‐Chi Chen, R. N. , et al. · 2024

Perovskite materials are good candidates for flexible photovoltaic applications due to their strong absorption and low-temperature processing, but efficient flexible perovskite modules have not yet been realized. Here, a record efficiency …

Revealing defective nanostructured surfaces and their impact on the intrinsic stability of hybrid perovskites Open

Yun Lin, Liu Y, Shuo Chen, Shaopeng Wang, Ni Zhang , et al. · 2024

The instability of metal halide perovskites (MHPs) remains to be one major obstacle for the commercialization of perovskite solar cells. Here we report the observation of nanocrystals and some amorphous phases at the surface of apparent si…

Tailoring solvent coordination for high-speed, room-temperature blading of perovskite photovoltaic films Open

Yehao Deng, Van Brackle, Xin Dai, Jin Zhao, Bin Chen , et al. · 2024

The efficiencies of small-pixel perovskite photovoltaics have increased to above 24%, while most reported fabrication methods cannot be transferred to scalable manufacturing process. Here, we report a method of fast blading large-area pero…

Perovskite-filled membranes for flexible and large-area direct-conversion X-ray detector arrays Open

Jingjing Zhao, Liang Zhao, Yehao Deng, Xun Xiao, Ni Zhang , et al. · 2024

The soft nature of metal halide perovskites makes them potentially applicable as flexible X-ray detectors. Here we report a structure of perovskite-filled membranes (PFMs) for highly sensitive, flexible and large-area X-ray detectors. PFMs…

Identifying the Soft Nature of Defective Perovskite Surface Layer and Its Removal Using a Facile Mechanical Approach Open

Shuo Chen, Liu Y, Xingfang Xiao, Yu Zhang, Yehao Deng , et al. · 2024

Chen and co-workers report a facile method for the removal of defective perovskite surface layers with adhesive tapes. This strategy is based on the discovery that the defective surface layer is mechanically softer and has weaker bonding t…

Defect compensation in formamidinium–caesium perovskites for highly efficient solar mini-modules with improved photostability Open

Yehao Deng, Xu S, Shicheng Chen, Xun Xiao, Jingjing Zhao , et al. · 2024

Formamidinium–caesium mixed-cation perovskites have shown better thermal stability than their methylammonium-containing counterparts but they suffer from photoinstability induced by iodide migration and phase segregation. Here we improve t…

Efficient sky-blue perovskite light-emitting diodes via photoluminescence enhancement Open

Qing Wang, Xiaoyang Wang, Zhuo Yang, Na Zhou, Yehao Deng , et al. · 2024

The efficiencies of green and red perovskite light-emitting diodes (PeLEDs) have been increased close to their theoretical upper limit, while the efficiency of blue PeLEDs is lagging far behind. Here we report enhancing the efficiency of s…

Evolution of defects during the degradation of metal halide perovskite solar cells under reverse bias and illumination Open

Ni Zhang, Hailong Jiao, Fei C, Gu H, Sheng Xu , et al. · 2024

The efficiency and stability of perovskite solar cells are essentially determined by defects in the perovskite layer, yet their chemical nature and linking with the degradation mechanism of devices remain unclear. Here we uncover where deg…

Pathways to High Efficiency Perovskite Monolithic Solar Modules Open

Xuezeng Dai, Shangshang Chen, Yehao Deng, Allen Wood, Guang Yang , et al. · 2022

With the rapidly improving efficiency and stability of perovskite solar cells, the transition of small area device fabrication innovations into modules is becoming increasingly important for the commercialization of this technology. The re…

Lead-adsorbing ionogel-based encapsulation for impact-resistant, stable, and lead-safe perovskite modules Open

Xun Xiao, Meixiang Wang, Shangshang Chen, Yihang Zhang, Hangyu Gu , et al. · 2021

We report a lead-adsorbing ionogel to enhance perovskite module mechanical strength and stability and reduce lead leakage.

SCALABLE COATING OF HYBRID PEROVSKITE FOR HIGH EFFICIENCY SOLAR MODULES Open

Yehao Deng · 2021

Solar cells have experienced a rapid performance enhancement and price reduction in recent years, thanks to the technology innovation and governments’ incentives. However, the growth of solar cell installation annually is still slow and it…

Perovskite solar cells with embedded homojunction via nonuniform metal ion doping Open

Yuze Lin, Tao Li, Ye Liu, Behzad Bahrami, Dengyang Guo , et al. · 2021

Metallic surface doping of metal halide perovskites Open

Yuze Lin, Yuchuan Shao, Jun Dai, Tao Li, Ye Liu , et al. · 2021

Identifying the Soft Nature of Defective Perovskite Surface Layer and Its Removal Using a Facile Mechanical Approach Open

Shangshang Chen, Ye Liu, Xun Xiao, Zhenhua Yu, Yehao Deng , et al. · 2020

Argon Plasma Treatment to Tune Perovskite Surface Composition for High Efficiency Solar Cells and Fast Photodetectors Open

Xun Xiao, C. Bao, Y. Fang, Jiyulei Dai, B.R. Ecker , et al. · 2020

The surface composition of perovskite films is very sensitive to film processing and can deviate from the optimal, which generates unfavorable defects and results in efficiency loss in solar cells and slow response speed in photodetectors.…

Bilateral alkylamine for suppressing charge recombination and improving stability in blade-coated perovskite solar cells Open

Weipeng Wu, Zhibin Yang, Peter N. Rudd, Yuchuan Shao, Xuezeng Dai , et al. · 2020

The power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) are already higher than that of other thin film technologies, but laboratory cell-fabrication methods are not scalable. Here, we report an additive strategy to enhan…

Surfactant-controlled ink drying enables high-speed deposition of perovskite films for efficient photovoltaic modules Open

Yehao Deng, Xian Zheng, Yunling BAI, Q. Wang, J. Zhao , et al. · 2020

Novel photovoltaic technologies such as perovskites hold the promise of a reduced levelized cost of electricity, but the low-cost potential depends on the ability to scale-up solution-based deposition. So far, complex fluid dynamics have l…

Fast Growth of Thin MAPbI3 Crystal Wafers on Aqueous Solution Surface for Efficient Lateral-Structure Perovskite Solar Cells Open

Y. Liu, Q. Dong, Y. Fang, Yun Lin, Yehao Deng , et al. · 2020

Solar‐grade single or multiple crystalline wafers are needed in large quantities in the solar cell industry, and are generally formed by a top‐down process from crystal ingots, which causes a significant waste of materials and energy durin…

Enhancing electron diffusion length in narrow-bandgap perovskites for efficient monolithic perovskite tandem solar cells Open

Zhibin Yang, Zhenhua Yu, Haotong Wei, Xun Xiao, Zhenyi Ni , et al. · 2020

Developing multijunction perovskite solar cells (PSCs) is an attractive route to boost PSC efficiencies to above the single-junction Shockley-Queisser limit. However, commonly used tin-based narrow-bandgap perovskites have shorter carrier …

Excess charge-carrier induced instability of hybrid perovskites Open

Yun Lin, B. Chen, Y. Fang, J. Zhao, C. Bao , et al. · 2020

Identifying the origin of intrinsic instability for organic–inorganic halide perovskites (OIHPs) is crucial for their application in electronic devices, including solar cells, photodetectors, radiation detectors, and light-emitting diodes,…

Dual Functions of Crystallization Control and Defect Passivation Enabled by Sulfonic Zwitterions for Stable and Efficient Perovskite Solar Cells Open

X. Zheng, Yehao Deng, B. Chen, Haotong Wei, X. Xiao , et al. · 2020

Uniform and high‐electronic‐quality perovskite thin films are essential for high‐performance perovskite devices. Here, it is shown that the 3‐(decyldimethylammonio)‐propane‐sulfonate inner salt (DPSI), which is a sulfonic zwitterion, plays…

Reduced Self-Doping of Perovskites Induced by Short Annealing for Efficient Solar Modules Open

Yehao Deng, Zhenyi Ni, Axel F. Palmstrom, Jingjing Zhao, Shuang Xu , et al. · 2020

Strained hybrid perovskite thin films and their impact on the intrinsic stability of perovskite solar cells Open

Jingjing Zhao, Yehao Deng, Haotong Wei, Xiaopeng Zheng, Zhenhua Yu , et al. · 2020

Organic-inorganic hybrid perovskite (OIHP) solar cells have achieved comparable efficiencies to those of commercial solar cells, although their instability hinders their commercialization. Although encapsulation techniques have been develo…

Thin single crystal perovskite solar cells to harvest below-bandgap light absorption Open

Zhaolai Chen, Qingfeng Dong, Ye Liu, Chunxiong Bao, Yanjun Fang , et al. · 2020

The efficiency of perovskite solar cells has surged in the past few years, while the bandgaps of current perovskite materials for record efficiencies are much larger than the optimal value, which makes the efficiency far lower than the Sho…

Templated growth of oriented layered hybrid perovskites on 3D-like perovskites Open

Jifei Wang, Shiqiang Luo, Yun Lin, Yifu Chen, Yehao Deng , et al. · 2020

Efficient sky-blue perovskite light-emitting diodes via photoluminescence enhancement Open

Qi Wang, Xiaoming Wang, Zhi Yang, Ninghao Zhou, Yehao Deng , et al. · 2019

Tailoring solvent coordination for high-speed, room-temperature blading of perovskite photovoltaic films Open

Yehao Deng, Charles H. Van Brackle, Xuezeng Dai, Jingjing Zhao, Bo Chen , et al. · 2019

An alternative ink design is introduced that enables fast coating of perovskite at room temperature for low-cost solar modules.

Yehao Deng YOU? Author Swipe