Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/55369
Title: Effective performance for undoped and boron-doped double-layered nanoparticles-copper telluride and manganese telluride on tungsten oxide photoelectrodes for solar cell devices
Authors: Pornpimol Srathongluan
Veeramol Vailikhit
Pichanan Teesetsopon
Supab Choopun
Auttasit Tubtimtae
Keywords: Chemical Engineering
Materials Science
Issue Date: 1-Nov-2016
Abstract: © 2016 Elsevier Inc. This work demonstrates the synthesis of a novel double-layered Cu2−xTe/MnTe structure on a WO3photoelectrode as a solar absorber for photovoltaic devices. Each material absorber is synthesized using a successive ionic layer adsorption and reaction (SILAR) method. The synthesized individual particle sizes are Cu2−xTe(17) ∼5–10 nm and MnTe(3) ∼2 nm, whereas, the aggregated particle sizes of undoped and boron-doped Cu2−xTe(17)/MnTe(11) are ∼50 and 150 nm, respectively. The larger size after doping is due to the interconnecting of nanoparticles as a network-like structure. A new alignment of the energy band is constructed after boron/MnTe(11) is coated on boron/Cu2−xTe nanoparticles (NPs), leading to a narrower Egequal to 0.58 eV. Then, the valence band maximum (VBM) and conduction band minimum (CBM) with a trap state are also up-shifted to near the CBM of WO3, leading to the shift of a Fermi level for ease of electron injection. The best efficiency of 1.41% was yielded for the WO3/boron-doped [Cu2−xTe(17)/MnTe(11)] structure with a photocurrent density (Jsc) = 16.43 mA/cm2, an open-circuit voltage (Voc) = 0.305 V and a fill factor (FF) = 28.1%. This work demonstrates the feasibility of this double-layered structure with doping material as a solar absorber material.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84978892885&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55369
ISSN: 10957103
00219797
Appears in Collections:CMUL: Journal Articles

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