摘要:
A recording member e.g. an optical video disc, comprises a substrate and a recording layer formed on the substrate. To achieve improved oxidation resistance and water resistance and stable characteristics, the recording layer contains Se and at least one of Te and Bi, the Se content in the vicinity of the outer surface of the recording layer and/or in the vicinity of the interface between the recording layer and the substrate being higher than the average selenium content in the remainder.
摘要:
An electrophotographic plate consists of a substrate (1) with a conductive surface and four successive layers (2,3,4 and 5) the third of which is optional. The first layer (2) is formed from Se and 3 to 10%by weight of As, and the second layer (3) is formed from Se, 40 to 47% by weight of Te and 3 to 10% by weight of As. The fourth layer (5) may be formed from an organic semiconductor Se only, or Se and up to 10% by weight of As. The conductive surface of the substrate (1) may be closest to the first layer (2) or to the fourth layer (5). This electrophotographic plate is sensitive to radiation with wavelengths longer than 700 nm and therefore permits the use of a semiconductor laser in an electrophotographic device. In making the plate, the substrate is maintained between 50°C and 80°C at least whilst the fourth layer (5) is formed, thereby to reduce the residual potential. All the layers are formed independently.
摘要:
By recording, reproducing and erasing information by using a recording thin film of the present invention, the information can be recorded, reproduced and erased by a single beam spot and new information can be rapidly rewritten while recorded information is erased. The irradiation beam is not limited to a light beam but it may be other energy beam such as electron beam or ion beam. The record medium is not limited to a disk but it may be tape or card. The present method is applicable to other recording thin film than the present thin film. The present recording thin film is applicable to other recording method than the present method. By using the present recording thin film, a manufacturing process is simple and reproducible, recording/reproducing characteristic is high and the information can be stably stored for an extended time period. The record may be rewritten a number of times.
摘要翻译:一种用于记录,再现和通过使用结晶 - 非晶相变型记录薄膜擦除信息的方法。 由单个激光三个不同电平的输出功率的调节,所以能够记录,再现,擦除或改写直接(擦除和在一次通过重新记录)使用相同的波束。 该方法不限于一个光束,但因此可使用的另一能量束:诸如电子束或离子束。 适用于上述方法的薄膜是由以下组合物为特征的:斧提拉ð阿尔法其中0 = X <30,优选0 = X = 20 5 = Y = 40 15 < / = Z = 70 30 =阿尔法 = 80和D是Se和/或S; C是锡,砷,锑,锗,镓和/或In,优选Sn或In; B是铋,铅,锌,镉和/或Al; A大于B,C或D.描述的内容不是通过使用所主张的薄膜记录介质的限制的方法,其它的元素,但可以用其它介质一起使用。 所要求保护的介质不限于记录所要求保护的方法,但也可以与其它记录方法中使用。
摘要:
An information recording member has an information recording film formed on a substrate either directly or with the interposition of at least one inorganic or organic protective layer and which undergoes change of atomic arrangement upon being irradiated by a recording beam. To improve the producibility of the member and its stability during its life, the recording film has and average composition in the direction of film thickness expressed by where 2 ≤ × ≤ 40, 30 ≤ y ≤ 95, 3 ≤ z ≤ 45, O ≤ α ≤ 20 and M is at least one of As, Sb, Bi, S, Si, Ge, Sn, Pb, Aℓ, Ga, In, Tℓ. Zn, Cd, Au, Ag, Cu, Ni, Pd, Rh, Cr, Mo, W and Ta. Members on which the recorded data is erasable can be produced.
摘要:
An information recording member (1) comprising a substrate (6), and a thin film (5) formed on the substrate with or without an intermediate layer therebetween and irradiated with a recording beam (4) to make an aperture or recess in the thin film is disclosed in which the thin film is a crystalline film and has a composition expressed by a general formula Se x Te y M z , where x, y and z are given by formulae 0.02 ≤ x ≤ 0.35, 0.50 ≤ y ≤ 0.98 and 0 ≤ z ≤ 0.45, respectively, and M indicates at least one element selected from the group consisting of As, Sb, Bi, S, Si, Ge, Sn, Pb, AI, Ga, In, Tl, Zn, Cd, Au, Ag, Cu, Ni, Pd, Rh, Cr, Mo, W and Ta, and in which the thin film does not deteriorate to such an extent as seen in conventional recording films when a time has elapsed, since the thin film is crystalline.
摘要:
An electrophotographic member has a support (1) and a photoconductor layer (2) on the support formed mainly of amorphous silicon. Improved characteristics of the layer (2) are obtained when the amorphous silicon contains on average at least 50 atomic-% silicon and at least 1 atomic-% hydrogen and a surface part (23, 25) at least 10 nm thick extending from a surface of the layer toward its interior has a hydrogen content of 1 to 40 atomic-% an optical forbidden band gap of 1.3 to 2.5 eV and an infrared absorption spectrum in which the intensity of at least one of the peaks centered approximately at wave numbers 2,200 cm -1 , 1,140 cm -1 , 1,040 cm -1 , 650 cm -1 , 860 cm- 1 and 800 cm -1 and attributed silicon-oxygen bonds does not exceed 20% of the intensity of the higher of the peaks centered at approximately wave numbers 2,000 cm-1 and 2,100 cm -1 and attributed silicon-hydrogen bonds. Dark decay characteristics are good, and a satisfactory surface potential can be achieved. In addition, the characteristics of the member are stable with time.