We report InGaN/GaN multi-quantum well (MQW) solar cells with a comparatively high open-circuit voltage and good concentration properties.Thc open circuit voltage (Voc) keeps increasing logarithmically with concentrat...We report InGaN/GaN multi-quantum well (MQW) solar cells with a comparatively high open-circuit voltage and good concentration properties.Thc open circuit voltage (Voc) keeps increasing logarithmically with concentration ratio until 60suns.The peak Voc of InGaN/GaN MQW solar cells,which has a predominant peak wavelength of 456nm from electroluminescence measurements,is found to be 2.45 V when the concentration ratio reaches 333×.Furthermore,the dcpendence of conversion efficiency and fill factor on concentration ratio are analyzed.展开更多
基金Supported by the Joint Projects under Grant Nos Y1AAQ11001 and Y1EAQ31001the Suzhou Solar Cell Research Project under Grant No ZXJ0903the Ministry of Science and Technology of China under Grant No 2010DFA22770.
文摘We report InGaN/GaN multi-quantum well (MQW) solar cells with a comparatively high open-circuit voltage and good concentration properties.Thc open circuit voltage (Voc) keeps increasing logarithmically with concentration ratio until 60suns.The peak Voc of InGaN/GaN MQW solar cells,which has a predominant peak wavelength of 456nm from electroluminescence measurements,is found to be 2.45 V when the concentration ratio reaches 333×.Furthermore,the dcpendence of conversion efficiency and fill factor on concentration ratio are analyzed.
