Purpose

Flexible hydrogenated amorphous silicon (a-Si:H) solar cells have many advantages, including lower weight, good flexibility and light sensitivity. Moreover, a-Si:H solar cells can be used as sensors, as indoor light sources and can also generate electricity. These solar cells are suitable for the design of portable systems and curved materials. The purpose of this study was to integrate flexible a-Si:H solar cells and wearable technology and to apply the dual functions of photovoltaics and photo sensors to smart clothing and eyewear.

Design/methodology/approach

The integration of flexible a-Si:H solar cells and tri-colour light-emitting diodes (LEDs) was used to develop smart auto-flashing clothing. In addition, we combined flexible a-Si:H solar cells and twisted nematic (TN) liquid crystal (LC) cells to design smart self-activation eyewear.

Findings

The maximum power resistance value of flexible a-Si:H solar cells was used to deduce the equation of solar cell voltage value generated by different percentages of SUN (100% SUN means 100 mW/cm²). A solar cell was used as a photo sensor that connects a resistor in a series to the Arduino to detect the voltage value, and then different percentages of SUN are calculated from the equation. Applying the deduced equation to the smart phone APP and Arduino code, we developed a human–machine interface (HMI) to facilitate user operation.

Originality/value

In this study, the flexible a-Si:H solar cell performs the function of not only photovoltaic power generation but also that of a photo sensor. The smart auto-flashing clothing is suitable for traffic guides, joggers and people engaging in other night activities. This smart self-activating eyewear can adjust to light and protect the eyes.

中文翻译：

---

智能服装和眼镜中a-Si:H太阳能电池的传感器和光伏双重功能

目的

柔性氢化非晶硅（a-Si:H）太阳能电池具有许多优点，包括重量轻、柔韧性好和光敏性。此外，a-Si:H 太阳能电池可以用作传感器，用作室内光源，还可以发电。这些太阳能电池适用于便携式系统和弯曲材料的设计。本研究的目的是整合柔性a-Si:H太阳能电池和可穿戴技术，并将光伏和光传感器的双重功能应用于智能服装和眼镜。

设计/方法/方法

柔性 a-Si:H 太阳能电池和三色发光二极管 (LED) 的集成被用于开发智能自动闪光服装。此外，我们结合了柔性 a-Si:H 太阳能电池和扭曲向列 (TN) 液晶 (LC) 电池来设计智能自激活眼镜。

发现

利用柔性a-Si:H太阳能电池的最大功率电阻值，推导出不同百分比SUN（100% SUN表示100 mW/cm ²）产生的太阳能电池电压值方程。使用太阳能电池作为光电传感器，将电阻串联到 Arduino 以检测电压值，然后根据公式计算不同百分比的 SUN。将推导出的方程应用于智能手机APP和Arduino代码，我们开发了一个人机界面（HMI）以方便用户操作。

原创性/价值

在这项研究中，柔性a-Si:H太阳能电池不仅具有光伏发电的功能，还具有光电传感器的功能。智能自动闪光服装适用于交通向导、慢跑者和从事其他夜间活动的人。这款智能自激活眼镜可以适应光线并保护眼睛。