Patil, Supriya A. Shinde, Dipak V. Ahn, Do Young Patil, Dilip V. Tehare, Kailas K. Jadhav, Vijaykumar V. Lee, Joong K. Mane, Rajaram S. Shrestha, Nabeen K. Han, Sung-Hwan 2024-01-20T09:01:27Z 2024-01-20T09:01:27Z 2021-09-02 2014-09-07 2050-7488 https://pubs.kist.re.kr/handle/201004/126360 In this work, we demonstrate an extremely simple but highly effective strategy for the synthesis of various functional metal oxides (MOs) such as ZnO, In2O3, Bi2O3, and SnO2 nanoparticles with various distinct shapes at room temperature via a solid-state reaction method. The method involves only mixing and stirring of the corresponding metal salt and NaOH together in the solid phase, which yields highly crystalline metal oxides within 5-10 min of reaction time. The obtained paste can be directly doctor-bladed onto a variety of substrates for photoelectrochemical applications. The crystal structure and surface composition of the MOs are obtained by X-ray diffraction patterns, energy dispersive analysis and X-ray photoelectron spectroscopy, respectively. The surface morphology is confirmed from the scanning electron microscopy surface photo-images. The surface area and pore size distribution are studied by the N-2 adsorption method. As a proof-of-concept demonstration for the application, ZnO nanoplate structures are envisaged in DSSCs as photoanodes, which enables us to obtain excellent photovoltaic properties with a power conversion efficiency of 5%. The proposed method does not require a sophisticated instrumental setup or harsh conditions, and the method is easily scalable. Hence, it can be applied for the cost-effective and large-scale production of MO nanoparticles with high crystallinity. English ROYAL SOC CHEMISTRY ZNO NANOROD ARRAYS SOLAR-CELLS PHOTOELECTROCHEMICAL PROPERTIES CONVERSION EFFICIENCY ELECTRON LIFETIME NANOPARTICLES CRYSTALLINE RECOMBINATION TRANSPORT HYDROGEN A simple, room temperature, solid-state synthesis route for metal oxide nanostructures Article 10.1039/c4ta02267j 1 JOURNAL OF MATERIALS CHEMISTRY A, v.2, no.33, pp.13519 - 13526 JOURNAL OF MATERIALS CHEMISTRY A 2 33 13519 13526 scie scopus 000340514500043 2-s2.0-84905158011 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article ZNO NANOROD ARRAYS SOLAR-CELLS PHOTOELECTROCHEMICAL PROPERTIES CONVERSION EFFICIENCY ELECTRON LIFETIME NANOPARTICLES CRYSTALLINE RECOMBINATION TRANSPORT HYDROGEN room temperature solid-state synthesis metal oxide nanostructures