FR2239711A1 - Electrophotographic recording assembly - with semiconductor charge injection intermediate layer - Google Patents

Electrophotographic recording assembly - with semiconductor charge injection intermediate layer

Info

Publication number
FR2239711A1
FR2239711A1 FR7426645A FR7426645A FR2239711A1 FR 2239711 A1 FR2239711 A1 FR 2239711A1 FR 7426645 A FR7426645 A FR 7426645A FR 7426645 A FR7426645 A FR 7426645A FR 2239711 A1 FR2239711 A1 FR 2239711A1
Authority
FR
France
Prior art keywords
layer
charge
inter
intermediate layer
charge injection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7426645A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2239711A1 publication Critical patent/FR2239711A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
    • G03G5/0436—Photoconductive layers characterised by having two or more layers or characterised by their composite structure combining organic and inorganic layers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
    • G03G5/047—Photoconductive layers characterised by having two or more layers or characterised by their composite structure characterised by the charge-generation layers or charge transport layers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Light Receiving Elements (AREA)

Abstract

In an electro-photographic recording material comprising in known manner a semiconductor layer between a photo-conducting layer and a substrate, the mobility of the electrons and the holes in the inter. layer differ so strongly that the layer is virtually an insulator for one type of charge carrier and an electrical conductor for the other type. More especially, in conditions of operation providing a positive surface charge on the surface of the photo-conducting layer, the mobility of the electrons in the inter layer is small compared to that of the holes and the reverse is the case where the charge on the surface is negative. An inter layer is provided which permits the charge to flow away from the illuminated zones of the photoconductor but prevents this occurring in the absence of light. The inter semiconductor layer may consist of arsenic selenide or arsenic sulphide or mixtures of these, or polyvinyl carbazole, where the surface charge is positive and trinitrofluorenone where the surface charge is negative.
FR7426645A 1973-07-31 1974-07-31 Electrophotographic recording assembly - with semiconductor charge injection intermediate layer Withdrawn FR2239711A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732338742 DE2338742B2 (en) 1973-07-31 1973-07-31 Electrophotographic recording material

Publications (1)

Publication Number Publication Date
FR2239711A1 true FR2239711A1 (en) 1975-02-28

Family

ID=5888459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7426645A Withdrawn FR2239711A1 (en) 1973-07-31 1974-07-31 Electrophotographic recording assembly - with semiconductor charge injection intermediate layer

Country Status (3)

Country Link
DE (1) DE2338742B2 (en)
FR (1) FR2239711A1 (en)
NL (1) NL7410217A (en)

Also Published As

Publication number Publication date
NL7410217A (en) 1975-02-04
DE2338742B2 (en) 1975-07-24
DE2338742A1 (en) 1975-02-20

Similar Documents

Publication Publication Date Title
ES385845A1 (en) Transfer apparatus
US2897425A (en) Method of and apparatus for producing electrostatic force
GB1024983A (en) Improvements in and relating to photoconductive development donor
SU604510A3 (en) Electrophotographic material
US3254998A (en) Induction image formation
FR2239711A1 (en) Electrophotographic recording assembly - with semiconductor charge injection intermediate layer
US3543032A (en) Device and process for amplifying and storing an image
GB1403290A (en) Photosensitive plate for use in electrophotography
US3372317A (en) Photoelectric device
GB1321359A (en) Photoelectrostatic copying machine
US3664833A (en) Method of transferring an electrostatic image to a dielectric sheet
ES412684A1 (en) Process for shaping a thermoplastic layer
GB1486593A (en) Electrostatographic imaging method
GB1199462A (en) Enhancement of Electrostatic Images.
US3980475A (en) Process of transferring an electrostatic latent image to a dielectric support
SU637098A3 (en) Electrophotographic film
JPS5718368A (en) Floating gate semiconductor memory
US3459946A (en) Solid state storage device
SU368579A1 (en) METHOD OF ELECTROPHOTOGRAPHIC RECORDING INFORMATION
JPS5753195B2 (en)
JPS5414247A (en) Current collector for photoreceptor belt of copier and the like
JPS5630137A (en) Electrophotographic photosensitive plate substrate
JPS558064A (en) Solid material image pick-up system
JPS57133464A (en) Separating and transferring device for electrophotographic copying machine
GB1494555A (en) Electrophotographic process

Legal Events

Date Code Title Description
ST Notification of lapse