کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1524108 1511824 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Copper zinc tin sulfide layers prepared from solution processable metal dithiocarbamate precursors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Copper zinc tin sulfide layers prepared from solution processable metal dithiocarbamate precursors
چکیده انگلیسی

In this contribution we present a solution based route toward copper zinc tin sulfide – CZTS – layers using metal dithiocarbamate precursors. We focus on the synthesis of the precursor materials as well as on the fabrication of thin CZTS layers at low temperatures of 350 °C and their characterization. Powder X-ray diffraction measurements show that a precursor solution containing an excess of the zinc precursor, compared to the Cu and Sn precursors, has to be used to obtain CZTS films without secondary phases. Thus, the prepared films are Zn-rich, which is beneficial for solar cell applications. Raman as well as X-ray photoelectron spectroscopy studies confirm the formation of CTZS. No clear evidence for free ZnS has been found. Electron microscopy shows agglomerates of 10 nm-sized crystallites forming spherical particles with a diameter between 50 nm and 400 nm. The prepared films possess high optical absorption (>1.104 cm−1) and an optical band gap of approximately 1.6 eV.

Figure optionsDownload as PowerPoint slideHighlights
► CZTS layers are prepared from metal dithiocarbamate precursor solu-tions.
► No additional sulfur sources or capping agents are necessary.
► Prepared CZTS layers are zinc rich.
► CZTS layers show a high absorption coefficient and a band gap of 1.6 eV.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 136, Issues 2–3, 15 October 2012, Pages 582–588
نویسندگان
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