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首页> 外文会议>PowerMEMS 2013 >Low-cost, high-efficiency organic/inorganic hetero-junction hybrid solar cells for next generation photovoltaic device
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Low-cost, high-efficiency organic/inorganic hetero-junction hybrid solar cells for next generation photovoltaic device

机译：下一代光伏器件的低成本，高效有机/无机杂交接合太阳能电池

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摘要

Organic/inorganic hybrid structures are considered innovative alternatives for the next generation of low-cost photovoltaic devices because they combine advantages of the purely organic and inorganic versions. Here, we report an efficient hybrid solar cell based on sub-wavelength silicon nanotexturization in combination with the spin-coating of poly (3,4-ethylene-dioxythiophene):polystyrenesulfonate (PEDOT:PSS). The described devices were analyzed by collecting current-voltage and capacitance-voltage measurements in order to explore the organic/inorganic heterojunction properties. ALD deposited ultrathin aluminium oxide was used as a junction passivation layer between the nanotextured silicon surface and the organic polymer. The measured interface defect density of the device was observed to decrease with the inclusion of an ultrathin Al_2O_3 passivation layer leading to an improved electrical performance. This effect is thought to be ascribed to the suppression of charge recombination at the organic/inorganic interface. A maximum power conversion efficiency in excess of 10% has been achieved for the optimized geometry of the device, in spite of lacking an antireflection layer or back surface field enhancement schemes.
机译：有机/无机混合结构被认为是下一代低成本光伏器件的创新替代品，因为它们结合了纯属有机和无机版本的优点。这里，我们报告基于副波长硅纳米夹紧型的高效混合太阳能电池与聚（3,4-乙烯 - 二氧噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）组合的旋涂。通过收集电流 - 电压和电容 - 电压测量来分析所描述的装置，以探索有机/无机异质结石。 ALD沉积的超薄氧化铝用作纳米制硅表面和有机聚合物之间的结钝化层。观察到该装置的测量界面缺陷密度，以含有超薄AL_2O_3钝化层导致改善的电气性能。认为这种效果归因于有机/无机界面处的电荷重组抑制。尽管缺少抗反射层或后表面场增强方案，但是对于装置的优化几何形状，已经实现了超过10％的最大功率转换效率。

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