Results 81 to 90 of about 2,713 (215)

Synthesis, Crystal Structure, and Optoelectronic Properties of [(n‐/tert‐C4H9)S(CH3)2]PbI3

European Journal of Inorganic Chemistry, EarlyView.
Reaction of two isomers of butyldimethylsulfonium cation with PbI2 using solid‐state and solution methods yielded the corresponding organic/inorganic hybrid compounds with high humidity tolerance and 1D crystal structures of [n‐C4H9S(CH3)2]PbI3 and [tert‐C4H9S(CH3)2]PbI3.
Ioannis Koutsoumpogeras, Nikolaos Tsoureas, Nagia S. Tagiara, Ioannis Koutselas, Andreas Kaltzoglou   +4 more
wiley   +1 more source

Bandgap Engineering via Doping Strategies for Narrowing the Bandgap below 1.2 eV in Sn/Pb Binary Perovskites: Unveiling the Role of Bi³⁺ Incorporation on Different A-Site Compositions

Nanomaterials
The integration of perovskite materials in solar cells has garnered significant attention due to their exceptional photovoltaic properties. However, achieving a bandgap energy below 1.2 eV remains challenging, particularly for applications requiring ...
Jeong-Yeon Lee, Seojun Lee, Jun Ryu, Dong-Won Kang   +3 more
doaj   +1 more source

Multifunctional ionic liquid boosts the efficiency of hole transport layer‐free carbon‐based perovskite solar cells beyond 20%

FlexMat, EarlyView.
HTL‐free carbon‐based PSCs are promising in stability but limited by efficiency. Systematic screening identifies DMAFo as an optimized ionic‐liquid additive: the DMA+ regulates lattice distortion and relieves residual stress, while Fo‒ passivates halide vacancies, and ameliorates band‐alignment.
Zhiyang Ju, Wenyan Zhao, Jionghua Wu, Hongshi Li, Yumin Liu, Wenying Jiang, Tiankai Zhang, Chuanjin Tian, Shaojian Fu, Chang‐an Wang, Zhipeng Xie   +10 more
wiley   +1 more source

Eliminating Halogen Vacancies Enables Efficient MACL‐Assisted Formamidine Perovskite Solar Cells

Advanced Science
Methylammonium chloride (MACl) additive is almost irreplaceable in high‐performance formamidine perovskite photovoltaics. Nevertheless, Some of the problems that can arise from adding MACl are rarely mentioned.
Zhiyong Liu, Tianxiao Liu, Meng Li, Tingwei He, Gaofu Guo, Pengfei Liu, Ting Chen, Jien Yang, Chaochao Qin, Xianqi Dai, Mingjian Yuan   +10 more
doaj   +1 more source

Low‐threshold FAPbBr3 lasers based on a dual‐additive strategy

FlexMat, EarlyView.
This study developes a dual‐additive strategy to fabricate high‐quality FAPbBr3 perovskite films, exhibiting a low surface RMS roughness of 1.36 nm and a high photoluminescence quantum efficiency of 63.6%. Based on the superior film, lasing with a record‐low threshold of 15.5 μJ/cm2 for FAPbBr3 under nanosecond‐pulsed pumping at room temperature are ...
Jingya Lai, Xinyu Huang, Yujing Wang, Chengcheng Wang, Jinfeng Yu, Runqin Lu, Zhiyuan Kuang, Kang Tian, Chao Ma, Wei Huang, Jianpu Wang, Qiming Peng   +11 more
wiley   +1 more source

First-Principles Study of Mixed Cation Methylammonium-Formamidinium Hybrid Perovskite [PDF]

Acta Physico-Chimica Sinica, 2019
Fuzhen BI, Xiao ZHENG, Chiyung YAM
openaire   +1 more source

Complete structure and cation orientation in the perovskite photovoltaic methylammonium lead iodide between 100 and 352 K

Chemical Communications, 2015
Neutron diffraction shows the methylammonium cation in the photovoltaic [CH3NH3]PbI3 demonstrates increasing positional disorder on heating from 100 K to 352 K.
Mark T, Weller, Oliver J, Weber, Paul F, Henry, Antonietta M, Di Pumpo, Thomas C, Hansen   +4 more
openaire   +3 more sources

Perovskite lasers: From optical pumping to electrical pumping

FlexMat, EarlyView.
This review highlights recent progress in perovskite lasers, emphasizing material engineering, cavity design, and lasing mechanisms in halide perovskites. It also discusses advances in continuous‐wave operation and evaluates the prospects for electrically pumped devices, while identifying key challenges that must be addressed to fully realize the ...
Kang Wang, Maria Vasilopoulou, Thamraa Alshahrani, Ilhwan Ryu, Muhammad Fazri bin Jasmin, Muhammad Danish Danial bin Zulkifli, Aliff Muhaimin bin Kamaruzaman, Muhammad Nafie bin Jakariah, Peng Gao, Abd Rashid bin Mohd Yusoff, Yong Sheng Zhao   +10 more
wiley   +1 more source

Illuminating the Devolution of Perovskite Passivation Layers

Small Structures
Surface treatment of perovskite materials with their layered counterparts has become an ubiquitous strategy for maximizing device performance. While layered materials confer great benefits to the longevity and long‐term efficiency of the resulting device
Marcin Giza, Aleksey Kozikov, Paula L. Lalaguna, Jake D. Hutchinson, Vaibhav Verma, Benjamin Vella, Rahul Kumar, Nathan Hill, Dumitru Sirbu, Elisabetta Arca, Noel Healy, Rebecca L. Milot, Malcolm Kadodwala, Pablo Docampo   +13 more
doaj   +1 more source

Aliquat 336 in Solvent Extraction Chemistry of Metallic ReO₄⁻ Anions

Molecules
A study of the liquid–liquid extraction of ReO4− anions from hydrochloric acid solutions using the ionic liquid Aliquat 336 (QCl: trialkyl(C8–C10)methylammonium chloride) via the well-known method of slope analysis along with the determination of the ...
Maria Atanassova, Zhanina Petkova, Vanya Kurteva   +2 more
doaj   +1 more source