2P051ή‫ݰ‬ᩓࣱ∃∐⇹⇱∑⇑∑⇶⇤∞∑↝ಊ˯ᄬ‫↚ئ‬ⅹↀ↺ᄬൢ৽৴јௐ≋1 ૼ๽‫ٻ‬ᨈᐯ໱∝2JST ↄⅼⅻↀ∝3 ⇐⇩⇕⇟⇻⇏∞⇯‫≌ٻ‬ᬡ࢟‫ס‬ʰ 1∝ⅎဃᬡࣙଯ 1,2∝Эဋπঙ 3∝Kevin Henbest3!"#!"#$%&'()*$#+,-./01234567809:;<=>?@MRAB,C
0DEFGHI;[1]JKLFGMNO# MR PQ0RSH1TU-VW@e-hAX#$%&YZ[\*$B]^_`;aRBbcFGHI;Jdefhole transporter

electron acceptors

g#TU$%&Rdefg-hijkl$%&R#mnop@qrsmnop(A)AB$%&YZ[\*nN$-tuvHI;RwxyG;JzDE_{1MRPQ#3|}~-01qrsmnopiI<@<1B ! AA09:; f)

PVCzONCCNNCCNOTCNB
Ere = -1.01V

PA-1.71VO

@PVCz, Fig. 1A#T0X FIG. 1 Molecular structures of the hole trans-porter and electron acceptors. Ere is the reduction
potential in MeCN versus Ag/AgCl.

;<PQ-MJ!$%#TU6RvHT@EreA#; 1,2,4,5-' g¡¢&£&

Opticalfiber

PhotoMonochromator multiamp

Lock-in-amp@TCNBA9¤¥¦§¨©@PAA-ªpvMJ« mol%#TU6-¬
­vM PVCz #®*((¯¨&°±LED 410nm
SampleYAG 355nm

DCsupply

YAG 532nm-pIH1²³´µ¶·0¸8v1¹=º»¶vMJFig. 2 0#m¼½¾¿#ÀÁÂ-ÃvMJÄÅÆRvH²Ç LED@OptoSupply, OSSV8131A,ACsupply

Pulse
generator

Personalcomputer

410nmA`;I{ Nd3+:YAG [¡ÈÉ FIG. 2 Block diagram of apparatus the magnetic field effect on$ÊË@CRYLAS, FTSS-532 R

the photoemission using a phase sensitive detection system

FTSS-355A#ÌÍ1Î²Ï½Ð@532, 355nmA-pIMJÄÅRÑÒÓÔ0¿IM§ÕZ
@OPTRONSCIENCE, SYUH190SA_-Ö×(KOUKEN, SG-80)Ø_5Ù1ÖvMº0TUÚÛ¶@HAMAMATSU, R955A_¼ÜvMJÝÞßàáâãZ@äo9¤ TAMAGAWA,TM-AHW55-051.5DC,00105ACA0i<-åævMJ{1<`;I{ÄÅ-çGèG 380Hz R 97Hz 0év(ê*Z&g&­@NF, LI5640A_m¼½vMJ!&'()*#FIG. 3 078#ëì9¤$í*'-ÃvMJ3.5eV i²îïðñ#Iëìò9¤ 3.3eV iîïðñ#ó(¬ëìò{1çGèG@CzAñôRTõö@CTA÷60øù;JCT ÷6{ Cz úyTU6ûüÖ0T-õövMTUýþ-2v1Ere BÿFI !îïð0"GHI;J3.02eV #_ CT ÷6-#$0ÄÅ;R1îïðñ0ó(¬%BKLFGMJTCNB -¬­vM7809:;
1.91eV #%R PA &09:; 2.26eV #%{1'(TÖ)vMýþ@e-h XAúy#R/#010`i1
MR &$ " B # % $ " 0 # !re " B # % !re " 0 #&$ "0#
1 % !re " B #! "1##<234úy MR PQ-;aRB_Ù;J     ú y 5 6 M !re # <  P Q@MFEreA

W avelength (nm)
400 450 500 600 700 800900

350
1.0(a)

1.0(b)

0.8

0.8

0.6

Recom.

x1/20

0.4

0.6
0.4

CT

0.2

0.2

Cz

0.0

0.0
4.0

3.5

3.0

2.5

2.0

Emission intensity (arb. unit)ì,@!reA0-.;J!re { MR PQR

Absorption intensity (arb. unit)*+FGH9i[2]1ç#@IfreA{T

1.5! " B # % !re " 0 # I f " B # % I f " 0 #Photon energy (eV)MFEre & re&!" 2#FIG.
3Absorption(a) and emission (b) spectra of TCNBI f " 0#!re " 0 #rerere(red) and PA- (blue) doped PVCz films. Emissions were- FIG. 4 0ÃJé_L7vMRa81 observed by exciting at 410 nm.
TCNB -¬­vM PVCz 78_{1!re #9:-;<;=#é>B 0.5mT ?@#<_KLF
GMJçG?A#<-åæ;R MFE {V0BC 50mT _D 30%0EvMJ<-FBFGH

PQ_`;J<PQ#2¥-Xú6;M601<é0;YZH[SM@FIG. 4bAJ=# MFE 0X\vMm#;%*B'0.5mT ?]_~^0"GMJØM1PA -¬­vM PVCz 78&09IHH
<_=#é>BKLFGMaRúy1N_4#²
IPQRwxyG;J!re #9:{1<09IH
e-h X# S-T S`BabFGMaR-ÃvHI;JÐc)Ö)vM e-h X# 2 d#TU$%&#mXuÔ{l$%&#¥efgh<#M6m0BIJmnopiB¥ef#_1qrsmnopB e-h X#PQ S-T

re
re

0.4
0.2
0.0

re

þR T'ýþ#QRSTBUVFG;aR-FWvM<[If (B)-If (0)]If (0) (%)

i Zeeman mnopBPÙk;RÙ0 e-h X# S ý0.6rePQ{aGØ_#Q[2]RNOvMJqrsmnop

(a)

0.8

dIf /dB (arb. unit)_`;aRBÖúSMJ0.5mT ?A#<_KLFGM

Magnetic field effect of the recombination

HIJQBKyG1£(<-·L0XMé>4(b)20-2-4-1.0

-0.5
0.0
0.5
1.0
Magnetic field B (mT)FIG. 4 Magnetic field effect on the recombination yields of TCNB- (red) and PA- (blue)
doped PVCz films observed by the field (a)and light (b) modulation methods.

S`0yIB`;Jvúv1<-åæ;R Zeeman mnopBH#TU$%&0jkvMlmiR;aR_1¥P S-T é`B9:;RwxyG;Jno1KL
FGM<PQ{defg#$%&pUPQ0øù;"q_`;JTr#<PQ#QHsØxt;u7_`;J!+),-#[1] New J. Phys. 6 (2004) 185; Phys. Rev. B 72 (2005) 205202; Synth. Met. 157 (2007) 930; Phys.
Rev. B 74 (2006) 195209; Synth. Met. 156 (2006) 757; Nature Mater. 6 (2007) 985; Appl. Phys. Lett. 92 (2008)
193309; Phys. Rev. Lett. 99 (2007) 216801; Phys. Rev. Lett. 100 (2008) 067201; Phys. Rev. B 74 (2006)
045213; Chem. Phys. Lett. 378 (2003) 380; Phys. Rev. Lett. 101 (2008) 236805; J. Appl. Phys. 102 (2007)
073710; Phys. Rev. B 75 (2007) 094423; Phys. Rev. B. 76 (2007) 235202; Appl. Phys. Lett. 92 (2008) 153303;
Phys. Rev. B 75 (2007) 035202; Y. Wu, Z. Xu, B. Hu, J. Howe, Phys. Rev. B 75 (2007) 035214.
[2] J. Am. Chem. Soc., 125 (2003) 4722; J. Phys. Chem. B, 109 (2005) 8707; Chem. Lett., 34 (2005) 1424.