{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T02:09:03Z","timestamp":1773194943237,"version":"3.50.1"},"reference-count":17,"publisher":"AIP Publishing","issue":"23","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2012,6,4]]},"abstract":"<jats:p>In this report, we propose an AC response equivalent circuit model to describe the admittance measurements of Cu2ZnSnS4 thin film solar cell grown by sulphurization of stacked metallic precursors. This circuit describes the contact resistances, the back contact, and the heterojunction with two trap levels. The study of the back contact resistance allowed the estimation of a back contact barrier of 246\u2009meV. The analysis of the trap series with varying temperature revealed defect activation energies of 45\u2009meV and 113\u2009meV. The solar cell\u2019s electrical parameters were obtained from the J-V curve: conversion efficiency, 1.21%; fill factor, 50%; open circuit voltage, 360\u2009mV; and short circuit current density, 6.8\u2009mA\/cm2.<\/jats:p>","DOI":"10.1063\/1.4726042","type":"journal-article","created":{"date-parts":[[2012,6,7]],"date-time":"2012-06-07T12:56:21Z","timestamp":1339073781000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":85,"title":["Admittance spectroscopy of Cu2ZnSnS4 based thin film solar cells"],"prefix":"10.1063","volume":"100","author":[{"given":"P. A.","family":"Fernandes","sequence":"first","affiliation":[{"name":"Universidade de Aveiro 1 I3N and Departamento de F\u00edsica, , Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"},{"name":"Instituto Superior de Engenharia do Porto 2 Departamento de F\u00edsica, , Instituto Polit\u00e9cnico do Porto, Rua Dr. Ant\u00f3nio Bernardino de Almeida, 431, 4200-072 Porto, Portugal"}]},{"given":"A. F.","family":"Sartori","sequence":"additional","affiliation":[{"name":"Universidade de Aveiro 1 I3N and Departamento de F\u00edsica, , Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"given":"P. M. P.","family":"Salom\u00e9","sequence":"additional","affiliation":[{"name":"Universidade de Aveiro 1 I3N and Departamento de F\u00edsica, , Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"given":"J.","family":"Malaquias","sequence":"additional","affiliation":[{"name":"Universidade de Aveiro 1 I3N and Departamento de F\u00edsica, , Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"given":"A. F.","family":"da Cunha","sequence":"additional","affiliation":[{"name":"Universidade de Aveiro 1 I3N and Departamento de F\u00edsica, , Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"given":"M. P. F.","family":"Gra\u00e7a","sequence":"additional","affiliation":[{"name":"Universidade de Aveiro 1 I3N and Departamento de F\u00edsica, , Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"given":"J. 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