欧美做受高潮 I 91偷拍视频 I 精品视频免费观看 I 日本日韩欧美 I 成人片在线看 I 国产精品污 I 国产精品扒开腿做爽爽爽视频 I 日本视频www I 亚洲а∨天堂久久精品2021 I 欧美日韩高清一区 I 一级片aaa I 国产欧美一区二区三区鸳鸯浴 I 很黄很黄的网站 I 综合色吧 I 幸福宝在线观看 I 最新超碰在线 I aaa天堂 I 午夜精品久久久久久久久久 I 精品久久蜜桃 I 一区二区三区啪啪啪 I 日韩综合一区二区三区 I 国产另类av I 毛片av免费在线观看 I 欧美一区二区三区久久精品 I 中文字幕欧美人妻精品一区 I 一区二区高清 I 99精品视频在线观看 I p站在线观看

                


 
Product information:
       The PVE300 system is a monolithic,turnkey solution for photovoltaic material and device characterization;a key component in research, or as part of a production-line quality process.
       Flexible in use, and compatible with all types of photovoltaic devices, from silicon to 3rd generation devices, the PVE300 permits the quick and accurate determination of solar cell spectral response from which EQE (IPCE) can be determined, and, with the addition of determination of cell transmittance and reflectance, IQE, over a range up to 250-2.5μm.
 
Product Features:
■ Chopped, monochromatic probe, 0.2-7mm diameter
■ Wide range of operation 300-1200/1300/2500nm
■ Purpose–built, light-tight measurement chamber
■ 20x20cm temperature-controlled vacuum mount
■ Compatible with substrate, superstrate and packaged devices
■ Transformer or pre-amplifier & lock-in amplifier based detection
■ Device operation in short circuit or voltage-biased
■ Modular design permitting future extensions of capability
■ Choice of single or multiple channel bias sources
■ Calibrated reference Si and Ge detectors
■ 300mm focal length monochromator
■ Optional DC to 2Hz mode
■ Optional motorised XY stage
 
Technical information: