当前位置: X-MOL 学术Mater. Renew. Sustain. Energy › 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.)
CuIn 0.7 Ga 0.3 Se 2 thin films’ properties grown by close-spaced vapor transport technique for second-generation solar cells
Materials for Renewable and Sustainable Energy Pub Date : 2019-08-10 , DOI: 10.1007/s40243-019-0151-2
N. Oulmi , A. Bouloufa , A. Benhaya , R. Mayouche

In this paper, CuIn0.7Ga0.3Se2 (CIGS) thin films are deposited on both glass (SLG) and glass/SnO2:F (SLG/FTO) substrates, by close-spaced vapor transport technique. The Hall effect measurements are performed in the temperature range (300–438 K) for the two SLG/CIGS samples namely CIGS1 and CIGS2, grown at substrate temperature (Ts) of 470 °C and 510 °C, respectively, to investigate the temperature effect on the electrical parameters such as hole concentration (p), conductivity (σ) and mobility (µ). As results, from Arrhenius diagram of (p) and (σ), bandgap energy (Eg) of about 1.38 eV and 1.24 eV are extracted for CIGS1 and CIGS2, respectively. Besides, activation energies (Ea) at 563.9 meV and 239.4 meV are determined for CIGS1 whereas values at 584.2 meV and 72.7 meV are obtained for CIGS2. Furthermore, average mobilities of 1.83 cm2/V s and 1.77 cm2/V s are achieved for CIGS1 and CIGS2 thin films, respectively. Pure aluminum (Al) Schottky contacts are deposited on the front side of FTO/CIGS thin film-devices by physical vapor deposition. Current–voltage (IV) characteristics are measured and used to extract the electrical parameters of FTO/CIGS/Al Schottky diode using the one diode model. The electrical parameters including series resistance (Rs) of about 93.7 Ω and an ideality factor (n) around 3.47 indicate that the generation–recombination mechanism is predominant.

中文翻译:

近距离气相传输技术在第二代太阳能电池中生长的CuIn 0.7 Ga 0.3 Se 2薄膜的性能

在本文中,CuIn 0.7 Ga 0.3 Se 2(CIGS)薄膜通过近距离气相传输技术沉积在玻璃(SLG)和玻璃/ SnO 2:F(SLG / FTO)衬底上。在两个SLG / CIGS样品CIGS1和CIGS2的温度范围(300–438 K)中进行霍尔效应测量,分别在470°C和510°C的底物温度(T s)下生长,以研究温度对电参数的影响,例如空穴浓度(p),电导率(σ)和迁移率(µ)。结果,根据(p)和(σ)的Arrhenius图,带隙能量(分别为CIGS1和CIGS2提取了约1.38 eV和1.24 eV的E g)。此外,对于CIGS1,确定了563.9meV和239.4meV的活化能(E a),而对于CIGS2,得到了584.2meV和72.7meV的值。此外,CIGS1和CIGS2薄膜的平均迁移率分别为1.83 cm 2 / V s和1.77 cm 2 / V s。通过物理气相沉积将纯铝(Al)肖特基触点沉积在FTO / CIGS薄膜器件的正面。电流电压(IV测量特性并使用一个二极管模型提取FTO / CIGS / Al肖特基二极管的电参数。包括约93.7Ω的串联电阻(R s)和约3.47的理想因子(n)在内的电参数表明,世代复合机制是主要的。
更新日期:2019-08-10
down
wechat
bug