[16p-P3-1~23] 6.2 カーボン系薄膜

▲ [16p-P3-22] Study on minority-carrier lifetime in ultrananocrystalline diamond/hydroganated amorphous carbon composite films

〇(M1)西川 尚史¹、竹市 悟志¹、花田 尊徳¹、立神 秀弥²、岩本 杏里²、武田 秀明²、福山 敦彦²、吉武 剛¹ (1.九州大総理工、2.宮崎大工)

キーワード：thin films

Ultrananocrystalline diamond (UNCD)/hydrogenated amorphous carbon (a-C:H) composite (UNCD/a-C:H) films comprise a large number of grains with diameters of less than 10 nm and an a-C:H matrix. The absorption coefficient is a new candidate semiconductor for photovoltaics. On the other hand, the minority carrier lifetime, which is one of the most important factors in the photovoltaic action, has not been investigated for UNCD/a-C:H yet. In this work, the minority-carrier lifetimes of typical samples were measured by employing a μ-PCD apparatus.