Investigations on copper zinc tin sulfide thin films grown through nebulizer assisted spray pyrolysis technique,International Journal of Energy Research

当前位置： X-MOL 学术 › Int. J. Energy Res. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Investigations on copper zinc tin sulfide thin films grown through nebulizer assisted spray pyrolysis technique
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2020-05-03 , DOI: 10.1002/er.5451
K. V. Gunavathy ₁ , K. Tamilarasan ₁ , C. Rangasami ₁ , A. M. S. Arulanantham ₂

Affiliation

An attempt is made in this work to synthesize the nontoxic Cu₂ZnSnS₄ (CZTS) thin film on FTO coated glass substrates through aerosol assisted nebulizer spray pyrolysis technique at different annealing temperatures for photovoltaic energy conversion. The deposited thin film is further used to form a heterojunction interface with a cadmium sulfide layer to fabricate a solar cell with Glass/FTO/CdS/CZTS/Ag superstrate structure to reveal its photovoltaic application. Various characterization techniques are utilized to study its inherent properties. X‐ray diffraction (XRD) is employed to investigate the structural parameters such as crystallite size, microstrain and dislocation density which shows a preferential peak for (112) plane around 28.5° confirming the formation of kesterite CZTS. Raman measurements establish the peak for CZTS at 336 cm⁻¹ and confirm the absence of parasitic secondary phases for an excitation wavelength of 488 nm. Scanning electron microscope and atomic force microscope used to examine the surface morphology and roughness of the films reveal a good surface morphology with a grain size of 555.9 nm and roughness of 123.7 nm for an annealing temperature of 350°C. The bandgap of the deposited CZTS films is found to be around 1.5 eV. The I‐V characteristics of CZTS seem to be better for the 350°C annealed film. The performance of the optimized CZTS absorber layer is tested by forming a solar cell structure. The devised solar cell exhibited an open circuit voltage of 213 mV and a short circuit current density of 490 μA cm⁻² with a conversion efficiency of 0.68% substantiating the usage of the prepared film as an absorber for photovoltaic conversion.

中文翻译：

雾化器辅助喷雾热解法制备铜锌锡硫化物薄膜的研究

尝试进行这项工作以合成无毒的Cu ₂ ZnSnS ₄在不同退火温度下，通过气溶胶辅助雾化器喷雾热解技术在FTO涂层玻璃基板上形成（CZTS）薄膜，以进行光伏能量转换。沉积的薄膜还用于与硫化镉层形成异质结界面，以制造具有Glass / FTO / CdS / CZTS / Ag覆层结构的太阳能电池，以揭示其光伏应用。利用各种表征技术来研究其固有特性。X射线衍射（XRD）用于研究结构参数，例如微晶尺寸，微应变和位错密度，这些参数显示（112）平面在28.5°附近有一个优先峰，从而证实了钾长石CZTS的形成。拉曼测量在336 cm ^-1处建立CZTS的峰并确认没有激发波长为488 nm的寄生次级相。用于检查膜的表面形态和粗糙度的扫描电子显微镜和原子力显微镜显示出良好的表面形态，在350℃的退火温度下具有555.9nm的晶粒尺寸和123.7nm的粗糙度。发现沉积的CZTS膜的带隙为约1.5eV。对于350°C退火的薄膜，CZTS的I-V特性似乎更好。通过形成太阳能电池结构来测试优化的CZTS吸收层的性能。所设计的太阳能电池表现出213 mV的开路电压和490μAcm ^-2的短路电流密度具有0.68％的转化效率证实了所制备的膜用作光伏转化吸收剂的用途。

更新日期：2020-05-03

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11