Poole-Frenkel ionization of excitons in solid Kr

被引：7

作者：

Kraft, J

Schrimpf, A

Schweitzer, B

Ibbeken, K

Stockmann, HJ

机构：

[1] UNIV MARBURG,FACHBEREICH PHYS,D-35032 MARBURG,GERMANY

[2] WISSENSCH ZENTRUM MAT WISSENSCH,D-35032 MARBURG,GERMANY

来源：

EUROPHYSICS LETTERS | 1997年 / 39卷 / 04期

关键词：

D O I：

10.1209/epl/i1997-00377-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

During vacuum-UV excitation of the excitons in solid Kr photoconductivity nas observed. For applied voltages below 50 V the photocurrent spectrum reflected the number of excitons produced in the bulk, whereas at higher voltages the contribution of excitons in a thin surface layer, including longitudinal and surface excitons, dominated the spectrum. These findings can be explained under the assumption of a Poole-Frenkel effect in the electrical fields produced by surface charges generated during the irradiation.

引用

收藏

页码：459 / 464

页数：6

相关论文

共 17 条

[1] EXPERIMENTAL-DETERMINATION OF BAND-GAPS IN RARE-GAS SOLIDS [J].

BERNSTORFF, S ;

SAILE, V .

OPTICS COMMUNICATIONS, 1986, 58 (03) :181-186

[2]

Frenkel J, 1938, PHYS REV, V54, P647, DOI 10.1103/PhysRev.54.647

[3] EXCITONIC ENERGY-TRANSFER IN AU-DOPED AND UNDOPED KR SOLIDS [J].

HERKERT, B ;

SCHRIMPF, A ;

GOTTSCHE, K ;

BORNEMANN, T ;

STOCKMANN, HJ .

PHYSICAL REVIEW B, 1995, 51 (22) :15763-15770

[4] RECENT RESULTS FROM PHOTON STIMULATED DESORPTION OF RARE-GAS SOLIDS EXCITED WITH SYNCHROTRON RADIATION [J].

KLOIBER, T ;

ZIMMERER, G .

PHYSICA SCRIPTA, 1990, 41 (06) :962-965

[5] PHOTOEMISSION FROM DOPED SOLID RARE-GASES [J].

OPHIR, Z ;

RAZ, B ;

JORTNER, J ;

SAILE, V ;

SCHWENTNER, N ;

KOCH, EE ;

SKIBOWSKI, M ;

STEINMANN, W .

JOURNAL OF CHEMICAL PHYSICS, 1975, 62 (02) :650-665

[6] IMPURITY PHOTOCONDUCTION, EXCITONS, AND EFFECTIVE MASSES IN LIQUID XENON [J].

RESHOTKO, M ;

ASAF, U ;

ASCARELLI, G ;

REININGER, R ;

REISFELD, G ;

STEINBERGER, IT .

PHYSICAL REVIEW B, 1991, 43 (17) :14174-14181

[7] OBSERVATION OF SURFACE EXCITONS IN RARE-GAS SOLIDS [J].

SAILE, V ;

SKIBOWSKI, M ;

STEINMANN, W ;

GURTLER, P ;

KOCH, EE ;

KOZEVNIKOV, A .

PHYSICAL REVIEW LETTERS, 1976, 37 (05) :305-309

[8] ONE-PHOTON AND 2-PHOTON SPECTROSCOPY WITH RARE-GAS SOLIDS [J].

SAILE, V .

APPLIED OPTICS, 1980, 19 (23) :4115-4122

[9] Thermally stimulated luminescence and conductivity of doped Ar solids [J].

Schrimpf, A ;

Boekstiegel, C ;

Stockmann, HJ ;

Bornemann, T ;

Ibbeken, K ;

Kraft, J ;

Herkert, B .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (20) :3677-3689

[10] MEAN-FREE PATH OF ELECTRONS IN RARE-GAS SOLIDS DERIVED FROM VACUUM-UV PHOTOEMISSION DATA [J].

SCHWENTNER, N .

PHYSICAL REVIEW B, 1976, 14 (12) :5490-5497