Results 41 to 50 of about 278,751 (295)

Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer

Journal of Nanotechnology, 2023
Interfacial carrier transfer kinetics is critical to the efficiency and stability of perovskite solar cells. Herein, we measure the regeneration rate constant, absorption cross-section, reduction rate constant, and conductivity of hole transport layered ...
Getachew Alemu Anshebo, Ataklti Abraha Gebreyohanes, Bizuneh Gebremichael Difer, Teketel Alemu Anshebo   +3 more
doaj   +1 more source

A Hybrid Hole Transport Layer for Perovskite-Based Solar Cells

Energies, 2021
This paper presents the effect of a composite poly(3,4-ethylenedioxythiophene) polystyrene sulfonate PEDOT:PSS and copper-doped nickel oxide (Cu:NiOx) hole transport layer (HTL) on the performance of perovskite solar cells (PSCs).
Joseph Asare, Dahiru M. Sanni, Benjamin Agyei-Tuffour, Ernest Agede, Oluwaseun Kehinde Oyewole, Aditya S. Yerramilli, Nutifafa Y. Doumon   +6 more
doaj   +1 more source

Finite Conductivity Minimum in Bilayer Graphene without Charge Inhomogeneities [PDF]

, 2010
Boltzmann transport theory fails near the linear band-crossing of single-layer graphene and near the quadratic band-crossing of bilayer graphene. We report on a numerical study which assesses the role of inter-band coherence in transport when the Fermi ...
Kailasvuori, Janik, MacDonald, A. H., Schliemann, John, Trushin, Maxim   +3 more
core   +2 more sources

Stable decaphenylcyclopentasilane hole transport layers for double-stacked perovskite photovoltaic devices fabricated under ambient atmosphere

Chemistry of Inorganic Materials
Stable decaphenylcyclopentasilane (DPPS) hole transport layers were developed for guanidinium-, formamidinium-, or ethylammonium-added double-stacked CH3NH3PbI3 perovskite photovoltaic devices without using 2,2′,7,7′-tetrakis (N,N-di-p-methoxyphenylamino)
Iori Ono, Takeo Oku, Yuto Genko, Riku Okumura, Taiga Nasu, Shinichiro Mizuno, Tomoharu Tachikawa, Tomoya Hasegawa, Sakiko Fukunishi   +8 more
doaj   +1 more source

Improved efficiency of NiOx-based p-i-n perovskite solar cells by using PTEG-1 as electron transport layer

APL Materials, 2017
We present efficient p-i-n type perovskite solar cells using NiOx as the hole transport layer and a fulleropyrrolidine with a triethylene glycol monoethyl ether side chain (PTEG-1) as electron transport layer.
Bart G. H. M. Groeneveld, Mehrdad Najafi, Bauke Steensma, Sampson Adjokatse, Hong-Hua Fang, Fatemeh Jahani, Li Qiu, Gert H. ten Brink, Jan C. Hummelen, Maria Antonietta Loi   +9 more
doaj   +1 more source

Preparation and Characteristics of MAPbBr3 Perovskite Quantum Dots on NiOx Film and Application for High Transparent Solar Cells

Micromachines, 2018
In this work, a MAPbBr3 quantum dot (QD-MAPbBr3) layer was prepared by a simple and rapid method. Octylammonium bromide (OABr) gives the MAPbBr3 better exciton binding energy, good surface morphology, and stability. To form a nanocrystalline thin film on
Lung-Chien Chen, Kuan-Lin Lee, Chun-Yuan Huang, Jia-Ching Lin, Zong-Liang Tseng   +4 more
doaj   +1 more source

NiO/Perovskite Heterojunction Contact Engineering for Highly Efficient and Stable Perovskite Solar Cells

Advanced Science, 2020
Recent research shows that the interface state in perovskite solar cells is the main factor which affects the stability and performance of the device, and interface engineering including strain engineering is an effective method to solve this issue.
Bingjuan Zhang, Jie Su, Xing Guo, Long Zhou, Zhenhua Lin, Liping Feng, Jincheng Zhang, Jingjing Chang, Yue Hao   +8 more
doaj   +1 more source

Preparation and Characterization of Thin-Film Solar Cells with Ag/C₆₀/MAPbI₃/CZTSe/Mo/FTO Multilayered Structures

Molecules, 2021
New solar cells with Ag/C60/MAPbI3/Cu2ZnSnSe4 (CZTSe)/Mo/FTO multilayered structures on glass substrates have been prepared and investigated in this study. The electron-transport layer, active photovoltaic layer, and hole-transport layer were made of C60,
Tsung-Wen Chang, Chzu-Chiang Tseng, Dave W. Chen, Gwomei Wu, Chia-Ling Yang, Lung-Chien Chen   +5 more
doaj   +1 more source

Carrier transport properties of the Group-IV ferromagnetic semiconductor Ge1-xFex with and without boron doping

, 2014
We have investigated the transport and magnetic properties of group-IV ferromagnetic semiconductor Ge1-xFex films (x = 1.0 and 2.3 %) with and without boron doping grown by molecular beam epitaxy (MBE).
Akiyama, Ryota, Ban, Yoshisuke, Nakane, Ryosho, Tanaka, Masaaki, Wakabayashi, Yuki   +4 more
core   +2 more sources

Ballistic electron emission microscopy spectroscopy study of AlSb and InAs/AlSb superlattice barriers [PDF]

, 1998
Due to its large band gap, AlSb is often used as a barrier in antimonide heterostructure devices. However, its transport characteristics are not totally clear. We have employed ballistic electron emission microscopy (BEEM) to directly probe AlSb barriers
Cheng, X.-C., McGill, T. C.
core   +1 more source