Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7992197 | Journal of Alloys and Compounds | 2018 | 7 Pages |
Abstract
Inkjet printing of kesterite Cu2ZnSnS4 (CZTS) thin films on glass from molecular ink is described. CZTS ink consists of copper acetate, zinc acetate, tin chloride and thiourea dissolved in a mixture of ethylene glycol and isopropyl alcohol. The printed precursor films are vacuum dried and thermolysed at 200â¯Â°C in air to obtain CZTS films. X-ray diffraction and Raman spectroscopy of films confirm the formation of kesterite CZTS without any secondary phases. The band gap of the films is 1.48â¯eV as deduced from transmission spectrum using Tauc plot. The films are p-type with hole density and mobility of 2.65â¯Ãâ¯1019â¯cmâ3 and 0.3 cm2Vâ1sâ1, respectively. Measurement of electrical conductivity of films in the temperature range from 77 to 300â¯K show that dominant mechanisms of conduction are Mott-Variable Range Hopping, Nearest Neighbour Hopping and Thermally Activated Band Conduction in the temperature ranges of 77-155â¯K, 180-240â¯K and 250-300â¯K, respectively.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Tapas K. Chaudhuri, Mitesh H. Patel, Devendra Tiwari, Prashant R. Ghediya,